458 socom loading data

The load data contained in this document is intended for use with specific components. Other manufacturers components may not produce equivalent pressure or velocities; therefore, it is recommended that the user be familiar with the basic rules of reloading safety.

Cartridge Name.458 SOCOM Brass Source Starline, Midway Shell Holder.45ACP/.308 Win Primer Size WLP, CCI350 Max Pressure 35,000 psi Trim Length 1.570-1.575 Bullet Name Barnes Remington Barnes Hornady Bullet Wt 250 XFN 300 gr JHP 300 gr X S 350 RN Item # 45831 RB4571 45802 4502 Powder H4227 Reloder 7 Reloder 7 IMR4198 Charge (gr) 37.5 42.0 40.0 38.6May 13, 2021 · As the 0.458” diameter bullet is far less popular than the 0.224” needed to build the .223 Rem. or 5.56x45 mm NATO round, I decided it would be safe to embark on a SOCOM handloading journey,... Anybody have good loads for 458 socom pushing a 350gr pill? Having a hard time finding anything out there Archived post. New comments cannot be posted and votes cannot be cast. ... I did a search using ".458 socomm load data 350 gr" and found 5000 hits. I trust what comes from Ed Harris. Reply reply     TOPICS. Gaming. Valheim ....458 Diameter Bullets 300 gr. HP/FN.355 Diameter Bullets 90 gr. JHC Power Jacket 95 gr. FMJ 115 gr. JHP Power Jacket 115 gr. FMJ 125 gr. FMJ 130 gr. FMJ.357 Diameter Bullets 110 gr. JHC Blitz Power Jacket 125 gr. JSP/125 gr. JHC Power Jacket 140 gr. JHC Power Jacket 158 gr. JSP/158 gr. JHC Power Jacket 170 gr. JHC Power Jacket 180 gr. FPJ MatchDec 29, 2018 ... Loading 45-70 with 600 grains. Just Some BS · 598K views ; The True Distance of a Typical Gunfight. Lucky Gunner Ammo · 418K views ; Loading 458 ...

Posted: 1/7/2010 6:24:59 PM EDT. Sorry to head over here for .458 data, but I have finished building my house and now have plenty of time for reloading and shooting. I want to reload .458 SOCOM rounds, but only have limited data. They changed their site, .458socomforums.com, a few times since over the last year or more that I've been away …Load Data for .458 Socom . Bullet: 350 gr JSP (SBR) Diameter: Powder: SBR-SOCOM (Shooters World) Starting Powder: 30.7 gr. Max Powder: 34.1 gr . Primer: Large Rifle ...I was looking at the reloading data for the 458 SOCOM cartridge and noticed that the site says that all of the primers used were either CCI or Winchester large rifle primers with Starline brass. It is my understanding that Starline has only ever offered their 458 SOCOM brass with large pistol primer pockets and they say on the website that if ...When a Walmart gift card is purchased online, the customer selects the amount that will be loaded on the card. Cards can only be reloaded in a Walmart store by retail customers. Co... Find reloading guidelines and data for your Barnes Bullets products. ... 458 SOCOM 45-70 1895 MARLIN 45-70 RUGER NO.1 450 MARLIN 458 WINCHESTER MAGNUM We place limited powder inventory for sale on a regular basis on our website. When we are sold out, we are sold out. We do not take backorders and our Tech Services team cannot take orders via email or phone. The max order quantity of any powder SKU is 5 and we will only accept one order, per customer, per calendar month with a maximum weight ...Load Data for .458 Socom . Bullet: 350 gr JSP (SBR) Diameter: Powder: SBR-SOCOM (Shooters World) Starting Powder: 30.7 gr. Max Powder: 34.1 gr . Primer: Large Rifle ...

Jan 7, 2010 · Posted: 1/7/2010 6:24:59 PM EDT. Sorry to head over here for .458 data, but I have finished building my house and now have plenty of time for reloading and shooting. I want to reload .458 SOCOM rounds, but only have limited data. They changed their site, .458socomforums.com, a few times since over the last year or more that I've been away from ... Sep 18, 2020 · The Hide Armory. Reloading Depot. Sniper’s Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Founded by Frank Galli in 2000, Sniper’s Hide has been offering informational videos, podcasts, and other support to its users in one location. Forum Statistics. .458 SOCOM (Shooters World) reloading data with 22 loads. Using bullets from Hornady JHP, Barnes TTSX, Sierra Pro-Hunter, SBR FMJ, SBR JSP. Powders include Shooters World. New research suggests that women who spend time in the workforce experience less cognitive decline as they age. In the US, women make up nearly 47% of the workforce—more than ever ...

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Yes they will. .458 SOCOM, .45-70, .458 Mag all use the same diameter bullets. I have had very good luck with bulk packaged Remington 300 gr. JHP bullets from Midway. I use 35.5 gr. of Winchester 296 powder, in Starline cases, with CCI Large Pistol Magnum Primers. In my 16" .458 carbine, they do just under 1900 ft/sec, and shoot 10 shot groups ...Notes: Tromix .458 SOCOM Monster, 16.25-inch barrel. Accuracy is the average of four five-shot groups fired from a sandbag benchrest at 100 yards. Velocity is the average of 10 rounds measured 15 feet from the gun's muzzle. All handloads used Starline cases and CCI 350 primers. All load data should be used with caution.Subsonic .458 Socom. Since its using a AR/M16 rifle I hope it fits here,if not I can move it. I am building a 458 Socom AR and was wondering if anyone has worked up any Subsonic loads using a .460 480grn cast?. I have searched around and have found some load data but not much regarding Subsonic and especially not with cast,i have … Load Data for .458 Socom . Bullet: 410 gr SUB-X (HDY) Diameter: 0.458" Powder: 2015 (Accurate) Starting Powder: Max Powder: 30.0 gr . Primer: WIN WLP . Case: Starline ... Apr 30, 2020 ... Gary wants data. You got it, Gary! Starline Brass 350-grain Speer Hot-Cor (2.198" COAL, 1.719" to Ogive) CCI Magnum Pistol Primer Hodgdon ...Rifle Data. Rifle Data. Here you will find load data for some of the most recent cartridges on the market, with more being added each week. We are currently populating the cartridge drop-down menu with updated cartridge renderings, new propellants and bullets, and links to complimentary product pages. Cartridge.

Jul 6, 2015. #1/9. as title says, looking to see if anyone who has the latest sierra load manual can check if it has any 458 socom data. problem ive been running into is its not a SAAMI cartridge. I'm not against buying another manual but id really only be buying this manual for that right now. i have lyman and hornady already.On the plus side, the .458 SOCOM is easy to reload. Dies, reloading data and components are all available. .458-inch projectiles are common. For powder, my favorites are Lil Gun, H110 and IMR 4198. Lil Gun works extremely well behind bullets running in weight from 300 to 405 grains. Accuracy is typically very good.As the 0.458” diameter bullet is far less popular than the 0.224” needed to build the .223 Rem. or 5.56x45 mm NATO round, I decided it would be safe to embark on a SOCOM handloading journey....458 Winchester Magnum - Published Manufacturer Loading Data Shellholders: Hornady #5. Lee #5. RCBS #4. Recipe Type: ... 0.458" Powder: H322 (Hodgdon) Primer: CCI 250 MagJul 6, 2019 ... A Mid Season Special on load development of Subsonic 500 gr Maker Bullets in 458 SOCOM using an improvised bullet trap / sand-trap.The Hide Armory. Reloading Depot. Sniper’s Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Founded by Frank Galli in 2000, Sniper’s Hide has been offering informational videos, podcasts, and other support to its users in one location. Forum Statistics.Mar 20, 2023. #5. I worked up some loads with the Berry's Superior Plated Round Shoulder 350gr, using HS-6, and CCI350 primers. Shooting from a 10.5" 1/14 Gibbz Arms G4 Non Reciprocating Side Charging Billet Aluminum Receiver, on a Franklin Armory Libertas BFS lower with carbine buffer tube assy. Suppressed with a Rugged Obsidian …Dec 3, 2023 · The 458 socom forum has some load data. I have been using Reloder 7 for this round. I spent some time searching and compiled a folder with a fair amount of load data from multiple sources. PM your email if you would like it. This is from the developer of the round. Attached File. Posted: 12/22/2023 12:23:13 PM EDT. In a rifle, the 458 SOCOM performs extremely well. The 300-grain bullet in this supersonic load has an average velocity at the muzzle of about 1900 fps. And delivers 2405 foot-pounds of energy. Going beyond the 16-inch barrel length provides few, if any, benefits. Think of the 458 SOCOM as an oversized pistol caliber round that uses a large ...Do you want even more energy then the 458 SOCOM, 450 Bushmaster or 50 Beowulf? ... The .45 Raptor utilizes .460 S&W loading data and dies, but makes use of a rimless cartridge to ensure functionality in the semi-automatic AR-10 platform. One of the strong points of the .45 Raptor (besides its cool name and great performance) is the fact …458 Socom Author: Barnes bullets Subject: 458 Socom Keywords: 458 Socom Created Date: 3/22/2016 7:43:05 AM ...The dawn of the .458 Socom (in my gun safe) is breaking! My current plan was to use BL-C2 powder (because I have a lot of it and load data) and working up some loads minimum charge to max and see how it goes. ... Here is the reloading forum on the SOCOM: Load Data . Battle of Wanat: 10 years ago last 13 July, 1LT Brostram was killed …

The 458 socom is hard to find data on . Only one of my 4 manuals has data . Lymans 50th shows 325gr ftx with H-110 , 26gr min / 28gr max with no pressure data . Max velocity is mid 1500fps _____ If Jesus had a gun , he'd probably still be alive ! ... and ran into the same issue with some loads in .458 SOCOM. What feels like a "safe" starting ...

In a rifle, the 458 SOCOM performs extremely well. The 300-grain bullet in this supersonic load has an average velocity at the muzzle of about 1900 fps. And delivers 2405 foot-pounds of energy. Going beyond the 16-inch barrel length provides few, if any, benefits. Think of the 458 SOCOM as an oversized pistol caliber round that uses a large ...Oct 25, 2017 · If you carefully measure water capacity of the case with bullet seated, I think you will find that the .458 SOCOM compares very closely to the .45-70. You would probably not get into any trouble using pressure tested load data from reliable sources, such as Speer No. 13 or No. 14, for the same weight bullet, adjusting the powder charge in ... MonoFlex®. 45 Cal .458 250 gr MonoFlex®. By combining the technologies of the original GMX ® and FTX ® bullet design, the MonoFlex ® bullet gives lever gun shooters another option. Constructed of a copper alloy, MonoFlex ® bullets offer hunters a solid that won't separate, and when recovered, retains 95% of its original weight.Subsonic .458 Socom. Since its using a AR/M16 rifle I hope it fits here,if not I can move it. I am building a 458 Socom AR and was wondering if anyone has worked up any Subsonic loads using a .460 480grn cast?. I have searched around and have found some load data but not much regarding Subsonic and especially not with cast,i have …If we factor in the kinetic energy of the rounds as they leave the muzzle, though, the picture becomes clear why the .458 SOCOM was designed that way. The M855 round of 5.56 NATO has a kinetic energy of 1,797 joules or 1,325-foot-pound. Meanwhile, the .458 SOCOM packs a staggering 3,261 joules, or 2,405-foot-pound.Yes they will. .458 SOCOM, .45-70, .458 Mag all use the same diameter bullets. I have had very good luck with bulk packaged Remington 300 gr. JHP bullets from Midway. I use 35.5 gr. of Winchester 296 powder, in Starline cases, with CCI Large Pistol Magnum Primers. In my 16" .458 carbine, they do just under 1900 ft/sec, and shoot 10 …InvestorPlace - Stock Market News, Stock Advice & Trading Tips Companies with high dividend yields can imply relatively high risk. However, co... InvestorPlace - Stock Market N...H110 gives slightly higher velocity but will not work as well with midlength gas. Reloader #7 works well in both CAR and midlength gassed rifles and only gives up a few fps. Check out all the loading data on .458 SOCOM Forums. Starline is …The Hide Armory. Reloading Depot. Sniper’s Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Founded by Frank Galli in 2000, Sniper’s Hide has been offering informational videos, podcasts, and other support to its users in one location. Forum Statistics.The .458 HAM'R® is designed from concept to completion to be the hardest hitting, most powerful (practical size) AR platform carbine ever produced, exceeding the ballistics of the .450 Bushmaster, .458 SOCOM and .500 Beowulf. By using an AR10 size bolt and barrel extension, this new cartridge is capable of handling maximum pressures …

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Southern Ballistic Research offers 21 different loads for the .458 SOCOM with bullets ranging from 100 to 500 grains. There are a lot of hunting bullets including the 300-grain and 350-grain Barnes bullets. It might have a military background, but in a rifle like the Rock River LAR458, the .458 SOCOM is a hog-killing machine..50 BeowulfI just got a .458 Socom upper to tinker with. I want to shoot a gas checked cast bullet that weighs 348 gns. after lubing. Many of the loads I have found( and there is little info for cast boolits available) use WW296/H110 powder. My experience with this powder is that it can not be loaded in light loads. Winchester recommends max. loads …Nov 16, 2018 ... Details: https://thereloadersnetwork.com/2018/11/16/600-gr-458-socom-pew-pew-penetration-test-line-up-the-milk-jugs/ Music: Tennessee ... Western Powder Manual and Lee Manual have some loads. Hodgdon manual is the same as Lee. A lot of sharing. A guy that goes by Big Bore has done a lot of work on loads. Just type 458 Socom on the Google. There is a 458 Socom spot that has a lot of good information. ACCURATE 4350 ®. Accurate 4350 is a short cut, single-base, extruded rifle powder in the extremely popular 4350 burn range. A highly versatile powder, 4350 can be used in a wide range of cartridges from the popular 243 Win to the …Reloading; Reloading Data; 458 Socom load data; 458 Socom load data. 11K Views Last Post 27 October 2017; Topic Is Solved; ... I don't know exactly where the …Nov 5, 2015 · You get a .458 bullet that light, as seen with the old 100 gr. aluminum Lehigh, the B.C. Is so poor and they shed velocity so quickly, you end up with a flatter trajectory using bullets in the 250-300 gr. range such as the Hornady 250 Monoflex and Barnes 300 TTSX with a whole lot more energy on target. Oct 25, 2017 · If you carefully measure water capacity of the case with bullet seated, I think you will find that the .458 SOCOM compares very closely to the .45-70. You would probably not get into any trouble using pressure tested load data from reliable sources, such as Speer No. 13 or No. 14, for the same weight bullet, adjusting the powder charge in ... %PDF-1.7 %µµµµ 1 0 obj >/Metadata 871 0 R/ViewerPreferences 872 0 R>> endobj 2 0 obj > endobj 3 0 obj > endobj 4 0 obj >/ExtGState >/ProcSet[/PDF/Text/ImageB ...Since 458 SOCOM load data is hard to find and A.R. 15 style rifle’s are new to me I thought I would start a thread to get some discussion going on this subject. I hope to compare notes with a few of you guys and possibly spread more information about cast bullets and the 458 socom. I knew from the start that I couldn’t afford to shoot factory … ….

Dec 27, 2010 · Jan 1, 2011. #3. Re: 458 SOCOM load data. There are several things you need to know about COAL: 1. If the bullet is seated deeper the pressure increases and if seated further out pressure decreases unless the bullet is so far out that it contacts the lands in which case pressure increases. 2. As a deer hunting cartridge, .458 SOCOM ammo works well with a 300-grain bullet at 1800-2000 fps muzzle velocity and delivering 2250 foot pounds of energy. It does not have the higher muzzle velocity of most big game cartridges but the energy behind that larger .458-caliber bullet offers excellent penetration at close range.Printed from Shooter's Reference on 05/06/2024: https://www.shootersreference.com/reloadingdata/458-socom/Rifle Data. Rifle Data. Here you will find load data for some of the most recent cartridges on the market, with more being added each week. We are currently populating the cartridge drop-down menu with updated cartridge renderings, new propellants and bullets, and links to complimentary product pages. Cartridge.Load Data for .458 Socom . Bullet: 350 gr JSP (SBR) Diameter: Powder: SBR-SOCOM (Shooters World) Starting Powder: 30.7 gr. Max Powder: 34.1 gr . Primer: Large Rifle ...SBR-SOCOM yields high loading densities and optimized velocities with low Standard Deviations (SD) values, not only in velocities, but in chamber pressure. The 458 SOCOM is a low pressure cartridge, operating at a maximum 35,000 psi and this powder optimizes this, producing clean and consistent performance.45-70 and 458 socom have the same bullet diameter458 SOCOM is similar to a light 45-70while 45-70s case is longer than 458 cases, you can use 45-70 dies as t...1.569 - 1.576 O.A.L. Status: Backordered. Ship date: To Be Determined. The SOCOM is an awesome cartridge that is basically a long 50AE (O.A.L. of 1.575") with a rebated .308 style head configuration, necked down to utilize a .458" diameter projectiles. It has been chambered in some bolt guns but its claim to fame is in the AR-15 platform.If you carefully measure water capacity of the case with bullet seated, I think you will find that the .458 SOCOM compares very closely to the .45-70. You would probably not get into any trouble using pressure tested load data from reliable sources, such as Speer No. 13 or No. 14, for the same weight bullet, adjusting the powder charge in ... 458 socom loading data, The Xbox Series X may not have many playable console exclusives at launch, but it can play all games from every previous Xbox generation—including the original Xbox, Xbox 360, and ..., Load Data for .458 Socom . Bullet: 576 gr RNFP (ACME) Diameter: 0.458" Powder: IMR 4198 (Improved Military Rifle) Starting Powder: Max Powder: 22.2 gr . Primer: WIN ... , 300gr. Spitzer. CT® Ballistic Silvertip® BST 300gr. RN 2.035" 0.191 0.204. POWDER POWDER CHG. MUZZLE VEL. LOAD DENSITY TYPE GRS. F.P.S. (VOLUME) All …, To make it easier to digest, I’ve put all the data in a chart. Keep in mind that barrel lengths for.454 Casull loads varied based on manual; the .458 SOCOM typically …, As a deer hunting cartridge, .458 SOCOM ammo works well with a 300-grain bullet at 1800-2000 fps muzzle velocity and delivering 2250 foot pounds of energy. It does not have the higher muzzle velocity of most big game cartridges but the energy behind that larger .458-caliber bullet offers excellent penetration at close range., Load Data for .458 Socom . Bullet: 300 gr TAC-TX (Barnes) Diameter: 0.458" Powder: IMR 4227 (Improved Military Rifle) Starting Powder: 28.0 gr. Max Powder: 30.0 gr ... , Re: 458 SOCOM Load Data. Using Reloder-7, Remington 2 1/2 Large Pistol primers, Starline brass trim 1.570", Hornady 325gr FTX for an OAL of 2.197", 40.0 gr …, Load Data for .458 Socom . Bullet: 300 gr TAC-TX (Barnes) Diameter: 0.458" Powder: 1680 (Accurate) Starting Powder: 33.0 gr. Max Powder: 35.0 gr ., Load Data for .458 Socom . Bullet: 300 gr TTSX-BT (Barnes) Diameter: 0.458" Powder: CFE BLK (Hodgdon) Starting Powder: 35.4 gr. Max Powder: 37.3 gr ., Plus, you can save favorites, add notes and more. Reloading data is available as low as 99¢ per cartridge or as a subscription for $19.99. Below you’ll find some basic data for each cartridge to help get you started. Basic Load Data. Hornady Manufacturing Company develops and publishes reloading data for the Handbook of Cartridge Reloading., I load my 350 gr Berrys bullets with 30gr Lil gun with CCI Large pistol primers in a Starline case. Excellent plinking rounds with good accuracy . Forgot to mention, I've been reloading for 12ish years, but just now got into 458. My experience is mainly 300blk, 6.5, 338, 30-30, etc. Appreciate any, and all help!, My data shows a max load of H110 with the 405 Remington SP to be 33.6 gr, and with Lil-Gun, same 405 gr. bullet, 29.0 gr. If those loads are good in a 405 gr. they will be just fine with the 350, no problems. They are both jacketed bullets and lead core so there is no problem using heavier bullet data for a lighter bullet when the bullets are ..., With Accurate 5744 the lightest charge Hodgdon lists for a 405gr cast lead bullet is 24.3 gr at about 1200 FPS vs. Hornady's 30.3gr charge for the 410gr Sub-X at 1300 FPS. A shorter barrel and a jacketed, slightly heavier bullet might be enough to reduce the velocity to subsonic levels. The Second Amendment-America's Homeland Security!, 458 Socom case dimensions have changed since introduction. Early dies were a little undersized, making it difficult or impossible to resize cases without having them stick in the die. ... — Loading Data 39. Warranty and General 9 — Place an order 8 — Warranty / Guarantee 1. Industry News Tags. 11mm French 11mm Gras 11x59R ..., W. Writerman Discussion starter. 14 posts · Joined 2021. #1 · Dec 14, 2021. Does anyone know of any reloading data for 250 Grain 458 Socom using either Lil' Gun, or any other viable powder? All the published loads are 300 plus grains, and I have searched high and low and cannot find anything. Thanks in advance. Like., SBR-SOCOM yields high loading densities and optimized velocities with low Standard Deviations (SD) values, not only in velocities, but in chamber pressure. The 458 SOCOM is a low pressure cartridge, operating at a maximum 35,000 psi and this powder optimizes this, producing clean and consistent performance., Western Powder Manual and Lee Manual have some loads. Hodgdon manual is the same as Lee. A lot of sharing. A guy that goes by Big Bore has done a lot of work on loads. Just type 458 Socom on the Google. There is a 458 Socom spot …, Printed from Shooter's Reference on 04/28/2024: https://www.shootersreference.com/reloadingdata/458-socom/, The .458 SOCOM has a much shorter max range of about 150 yards. This is also dependent on the bullet weight used in a round. Heavier bullets are going to drop like a stone as they travel down range. ... Reloading. Both the .450 Bushmaster and .458 SOCOM are popular rounds to reload due to the relative scarcity of factory ammo and …, Re: 458 SOCOM Load Data. Using Reloder-7, Remington 2 1/2 Large Pistol primers, Starline brass trim 1.570", Hornady 325gr FTX for an OAL of 2.197", 40.0 gr …, 458 Socom Cast Boolit Data. I recently built a 458 socom and started reloading for it using jacketed bullets. I didn't want to pay jacketed bullet price so I decided to try some NOE 460-405 rf hollowpoint they come out to about 335gr with my alloy. I decided against these boolits because they would have to be seated far too deep to not engage ..., Outside of the cartridge specs and reloading data, the .458 SOCOM is intended for semi-automatic rifles, which means—unless you’re John Wick or Jerry Miculek—you’ll be able to get follow up shots off significantly faster in a .458 SOCOM than you would a .45-70. That follow-up speed doesn’t include the speed lost because of the ..., / .458 Socom (Barnes Data 2012) reloading data with 20 loads. Using bullets from Barnes TAC-TX, Barnes Banded Solid. Powders include Hodgdon, Winchester, IMR, Accurate, …, The 458 socom forum has some load data. I have been using Reloder 7 for this round. I spent some time searching and compiled a folder with a fair amount of load data from multiple sources. PM your email if you would like it. This is from the developer of the round. Attached File. Posted: 12/22/2023 12:23:13 PM EDT., Barnes has load data for the 458. Several of the gurus at 458socomforum have tested the hornady FTX 325 gr. Consensus is 2.22 on OAL. Powder varies. I tested lilgun and h110 and lilgun gave me 1/2 moa at 100 yards out of my tromix 12 inch barrel. 29 grains of lil gun was 1660 FPS., If we factor in the kinetic energy of the rounds as they leave the muzzle, though, the picture becomes clear why the .458 SOCOM was designed that way. The M855 round of 5.56 NATO has a kinetic energy of 1,797 joules or 1,325-foot-pound. Meanwhile, the .458 SOCOM packs a staggering 3,261 joules, or 2,405-foot-pound., The Hide Armory. Reloading Depot. Sniper’s Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Founded by Frank Galli in 2000, Sniper’s Hide has been offering informational videos, podcasts, and other support to its users in one location. Forum Statistics., The .458 SOCOM has a much shorter max range of about 150 yards. This is also dependent on the bullet weight used in a round. Heavier bullets are going to drop like a stone as they travel down range. ... Reloading. Both the .450 Bushmaster and .458 SOCOM are popular rounds to reload due to the relative scarcity of factory ammo and …, Yes they will. .458 SOCOM, .45-70, .458 Mag all use the same diameter bullets. I have had very good luck with bulk packaged Remington 300 gr. JHP bullets from Midway. I use 35.5 gr. of Winchester 296 powder, in Starline cases, with CCI Large Pistol Magnum Primers. In my 16" .458 carbine, they do just under 1900 ft/sec, and shoot 10 shot groups ..., Notes: Tromix .458 SOCOM Monster, 16.25-inch barrel. Accuracy is the average of four five-shot groups fired from a sandbag benchrest at 100 yards. Velocity is the average of 10 rounds measured 15 feet from the gun's muzzle. All handloads used Starline cases and CCI 350 primers. All load data should be used with caution., Find reloading guidelines and data for your Barnes Bullets products. ... 458 SOCOM 45-70 1895 MARLIN 45-70 RUGER NO.1 450 MARLIN 458 WINCHESTER MAGNUM, .458 Socom (Barnes Data 2012) reloading data with 20 loads. Using bullets from Barnes TAC-TX, Barnes Banded Solid. Powders include Hodgdon, Winchester, IMR, Accurate, Alliant , Accuracy wise they’ve been incredible in all calibers I’ve used (300prc 200gr, 120gr 7mm-08, 140gr 7mm rem mag, 500gr 458 socom, 300gr 500sw). Haven’t killed anything with them yet though. Just developed loads. From what I’ve seen they’re supposed to work incredible on game.