Remington Load Data. WhistlerSWE, Back in the mid-90's SAAMI lowered the chamber pressure standards from 41,500 psi to 35,000 psi for 357 Mags. It was ugly. They utilize modern non-corrosive and non-mercuric initiator mixes for the cleanest burn possible. Looking at avg FPS and SD, no huge difference in performance using small rifle primers for 357 magnum reloading Next Accuracy TRR8 revolver, FED 200 load - accuracy was on par with my normal ability Using any of the 3 small rifle primers - my groups were consistently 4-5x LARGER, and no real grouping, they were all over the place. Magnum Rifle Primer Mil-Spec No. loads with a 158-gr. In most of the "Magnum" calibers and in some standard caliber loadings, it depends on what you are feeding them. Most 38 sp bullets will have a crimp groove. It has a steel core and will pierce an engine block. I've never used Longshot for 357 but a quick look at the Hodgdon site shows them using Winchester small pistol magnum primers. 34/7.62 Primer Mil-Spec No. But, this isn't the best powder for 900 f/s loads. Of course, now i save my w296 and h110 for 300 blackout subbies and use tightgroup w/standard primers in my 357. Refine by Product Family: Mil-Spec No. Midsouth Shooters offers an extensive selection of reloading and shooting supplies, tools, and equipment. The new 357 was too long for the 38s chamber, and helped prevent these hot loads being fired in weaker revolvers. 34/7.62 Primer. You can use either one in reloading the .357. Federal is using true 9mm and not .38 or .357″ diameter. Original .357 Magnum specs touted the muzzle velocity for a 158-grain, lead SWC bullet of more than 1,500 fps from an 8â…œ-inch barrel. RWS 5333 Large Rifle Magnum (LRM) Primers. This past weekend at a gunshow I was only able to locate small pistol magnum primers. It is just a guide and the reason you should start under these charges and work up. Use magnum primers and a heavy crimp. ALL Accurate 4100 Accurate No. 357 Sig; 38 Super; 32 Caliber(.312-.313) 44-40(.427) Bulk Rifle Bullets. Small Pistol Primer (1½NATO) 9X19MM (NATO) 100 50 5.000 PR-SPM Small Magnum Pistol Primer (5½) .223 REM, .30 Carabina, .357 MAG, .454 CASULL, .45 GAP 100 50 5.000 PR-LP Large Pistol Primer (2½) .44-40 WIN, .44 REM, .44 SW SPL, .45 AUTO, .45 COLT 100 50 5.000 PR-SR Small Rifle Primer (7½ ) 5,56x45mm (NATO / M193 / M196 / SAT / OTM / Blank), .300 BLK Winchester 296. Primer size (large, small) Some cartridges require a large pistol primer (45acp, 44 special, 44 magnum, …) while others require a small pistol primer (9mm, 38 special, 357 magnum, …). Use a .356″ for lead bullets. 35/50 Cal BMG Primer . Once Fired Brass, New Brass. Remington Load Data. Sort By. You should also make sure there's no debris or other obstruction lodged inside the case. I don't think you will have any problems if you stay away from maximum loads and if possible use a slower burning powder with the magnum primers. Load data for caliber "RWS 4047 Small Pistol Magnum (SPM) Primers". But, this isn't the best powder for 900 f/s loads. Primers are typically sold in packs of 100, or bricks of 1000 (10 packs of 100). CCI Primers are continuously tested and improved. When the primer ignites, it shootes a high intensity flame through the flash hole (hole between primer pocket and case interior) which ignites the powder charge. PR-LP . While large, the important thing is that firearms constructed to SAAMI standards are designed to withstand the 35,000 PSI pressure peak. . Primer type (Regular, Magnum, Multi-Purpose) Small Pistol Magnum Primers (SPM) are a key component for ammunition reloading. Powders .) Alliant has load data for two 158 grain bullets on their web site. CCI® Primers - Per 1000. These primers are NOT recommended for loading high pressure loads such as 357 Mag, 357 Sig or 40 S&W. Yea, you are correct, you go ahead and use standard Remington primers in high pressure rounds if you want. 357 mag; 9mm luger; 44 mag; 45 colt; 25 auto; Shop all pistol brass; primers. This practice has fallen by the wayside over the years. Lee 38 Special / 357 Magnum Pistol Breech Lock 3-Die Set includes colored spline drive breech bushings for easy die identification, Carbide Full Length Sizing Die, Bullet Seating Die, Powder Thru Expanding Die, Universal Shell Holder, Powder Dipper and Instructions/Load Data. 6MM(.243) . At the range, I immediately liked the feel of the recoil- seemed even and more smooth somehow than the H-100 that I normally use. 34/7.62 Primer. The pressures you are dealing with on .357 Magnum pistol cartridges range into 35,000 PSI. As a result today's CCI primers are more sensitive, easier to seat and more compatible with progressive and automated loading equipment than ever before. Winchester also makes small pistol primers for the .357. Sierra Load Data. The 357 Magnum is a very versatile round. Lapua Load Data. Box Case 50. - - - Below, are three loaded rounds. I have seen plenty of reloading data using small pistol primers but not small pistol magnum primers. Bullet size is .355″ (9mm) (jacketed) in diameter. You can use either one in reloading the .357. Good Luck. True, but, as a beginning reloader it is best to use what the manual suggests; there are reasons for using a magnum primer for magnum loads, and proper powder ignition is prolly the main one. 2 Accurate No. Northeast Reloading is your source for bulk Hornady Sierra, Berry's. Low prices, fast shipping on all products. A lot of people believe that loading the .357 Mag. An auto cartridge headspaces on the mouth of the cartridge, so you basically just remove the bell from the case mouth. When the higher pressure standard was used, nearly all US ammo manufacturers used small Standard rifle primers in their factory 357 Mag loads. A deduction in powder charge or change in components can cause dangerous pressures. Find products with excellent quality and value here. Refine by Package Quantity: 1000 . Good Luck and have fun. Refine by Use: Reloading Package Quantity 100. The .357's maximum average pressure is specified at 35,000 psi. lead semi-wadcutter bullet and a large pistol primer, you know you've . The main difference in loading for this and the 9mm is crimping. 5 Accurate No. Due to different barrel lengths, type of bullet, seating depth, primer type and other factors, you may not get near the FPS charted. So if it were me, I'd use magnum primers - but people have used spp and srp. In the 357 mag data, there is a foot note which partially reads Do not reduce powder charges with 296 powder. Winchester also makes small pistol primers for the .357. Conventional wisdom has long told us to use standard primers for standard loads and magnum primers for magnum loads, and there's plenty of that reloading data available. I have been reloading for about 6 months and only have experience reloading .45 ACP. You will need to find the right powder and primer combo that works for you. It was ugly. However, in Handloader No. . This load consisted of 14.4 grains of Alliant 2400, Remington 5 1/2 small pistol magnum primers, and Speer 158 grain JHP bullets. With Mag primers, I would . Federal® Centerfire Primers. The relatively thin-walled cartridge cases must remain intact when a round is fired. A magnum primer really comes into its own when you load a good size rifle round that requires slow burning powder. . I have been reloading for about 6 months and only have experience reloading .45 ACP. with these powders. 207, Brian Pearce did an excellent job of showing that magnum loads in his .357, even using H-110, actually perform better with standard primers. Lapua Load Data. Hornady Load Data. . IMR Smokeless Powder - Rifle. I would recommend using the magnum primers with powders such as 2400 and H110, and regular primers for light loads using powders like Unique, Bullseye, and the like. Good Luck and have fun. Alliant now, for the last 10 years, has only recommended SP Mag primers for 357 loads with 2400, so any recent data is with Mag primers. I have seen plenty of reloading data using small pistol primers but not small pistol magnum primers. 35/50 Cal BMG Primer . but uses the regular small pistol primers. A large number of Olympic victories prove the excellent quality of RWS ammunition, which many well-known and competent top shooters rely on. Hodgdon® Smokeless Powder. This load consisted of 14.4 grains of Alliant 2400, Remington 5 1/2 small pistol magnum primers, and Speer 158 grain JHP bullets. Bullets are .357″ for jacketed and .358″ for lead in diameter. Speer Load Data. From the start to finish everything to you need to know about reloading 357 Magnum.https://www.patreon.com/user?u=10462972 .357/.38 will be my first experience reloading a wheelgun caliber. I expected more velocity based on Quickload and Hornady data. a lightweight .357 or older gun, you may want to start with 13% less than amounts listed above (but not where it says "start" load), and work up to the full loads. Speer list max speeds using lead bullets of under 1,100 fps to prevent . . 24 nosler; 243 wssm . Jan 17, 2017. This past weekend at a gunshow I was only able to locate small pistol magnum primers. The mix of components interact in very unpredictable ways. Magnum Rifle Primer Mil-Spec No. It is obvious to most experienced Handloaders though, that the lead bullet 357 Magnum load data certainly does not demand Magnum ignition with the powders listed. I would add here that Hodgdon published data uses srmp for all their 300blackout, but I have been using the CCI #41. Description Small Magnum Pistol Primer (5½) Usage.223 REM, .30 Carabina, .357 MAG, .454 CASULL, .45 GAP. Without knowing bullet weight and powder charge, I'd stick with that personally. A large number of Olympic victories prove the excellent quality of RWS ammunition, which many well-known and competent top shooters rely on. Current factory ammo delivers substantially less performance, i.e., velocities are 150 to 200 fps lower. In addition, rifle cartridges and components from RWS stand for the highest quality standard and first-class precision. Related search terms 357 158 gr Bullets Jacketed Hollow Point35 brass . Northeast Reloading is your source for bulk Hornady Sierra, Berry's. Low prices, fast shipping on all products. Rounds Case 5.000. 9 Accurate Solo 1000 Accurate TCM Alliant Powder 2400 Alliant Powder 300-MP Alliant Powder BE-86 Alliant Powder Blue Dot Alliant Powder Bullseye Alliant Powder Power Pistol Alliant Powder Sport Pistol Alliant Powder Unique Hodgdon 700-X Hodgdon CFE Pistol Hodgdon Clays Hodgdon H110 Hodgdon H4227 . (See note on Powders below or read all about various Powders .) Once upon a time, the loading manuals recommended small rifle primers for the .357 Magnum cartridge. requires the use of magnum primers. Loads for .357 Sig: (Note: These ARE MAXIMUM loads, you should use 10% less to start.) Thanks for you open mindedness and willingness to learn from somebody who has been at it for 30+ years. Looking at avg FPS and SD, no huge difference in performance using small rifle primers for 357 magnum reloading Next Accuracy TRR8 revolver, FED 200 load - accuracy was on par with my normal ability Using any of the 3 small rifle primers - my groups were consistently 4-5x LARGER, and no real grouping, they were all over the place. Primer Size: 357 Magnum: 357: SPM: 357 Maximum: 357: SPM: Show Winchester® #209 Primers for Shotshells. 7 Accurate No. . Refine by Use: Reloading Package Quantity 100. RWS Load Data. . Only show this user. Alliant now, for the last 10 years, has only recommended SP Mag primers for 357 loads with 2400, so any recent data is with Mag primers. Speer Load Data. Berger Load Data. Brisience (spark) is only one factor to consider. When powder burns, it can generate multiple peak pressure points over time. Unless you are loading with one of the so-called magnum powders such as Winchester. Refine by Package Quantity: 1000 . Find here common products in this primer size. Note : You may use the 38 Special die set to reload for the 357 . Show per page. . Pistol primers side by side: 44 magnum (large pistol primer) and 357 magnum (small pistol primer) small rifle; small pistol; large rifle; large pistol; Shop all primers; rifle brass. CCI Small Pistol Magnum Primers #550 in stock. Primer Size: 357 Magnum: 357: SPM: 357 Maximum: 357: SPM: Ambient temp - 38f. These loads must be used exactly as shown. Refine by Product Family: Mil-Spec No. Some times you can fix this by coating the bullets with Lee Liquid Alox on top of the factory lube, before loading, just let it dry well. Refine by Product Family: Mil-Spec No. Since its introduction, the .357's ballistics have gradually diminished. The mag primer does put out a little more burn for this situation. are also differences. Magtech® reloading components are made under the same quality standards as our technologically advanced factory loads, resulting in top-quality products that you can depend on. Thanks for you open mindedness and willingness to learn from somebody who has been at it for 30+ years. The 357 magnum is simply a lengthened 38 Special cartridge. Magnum primers are hotter and tend to ignite powder in a different pattern than standard primers. In addition, rifle cartridges and components from RWS stand for the highest quality standard and first-class precision.RWS primers are subject to demanding . In any event, you can't go wrong "working up" with the Mag primer, it's just a little bit of overkill for the lead load data for sure. Small Pistol Magnum Primers (SPM) are a key component for ammunition reloading. The pistol rounds usually are ;oaded with a faster burning powder including some of the shotgun powders that are used in reloading. Refine by Product Family: Mil-Spec No. Rounds Box 100. 35/50 Cal BMG Primer. Search results for: '357 primers and gun powder' 12 Items . RWS Load Data. 4.5 grains at 850 to 6 grains at 1100 seems to be the range. However, in Handloader No. Winchester® Smokeless Ball Powder. The armor piercing round was bought commercially (in the 70's). Nosler Load Data. pressures may have been even higher; and if you shoot one of those old .357 Mag. You go right ahead and disregard. Federal makes both small pistol primers and small pistol magnum primers. You can load anything from light target loads to large game hunting loads. You will need to find the right powder and primer combo that works for you. Conventional wisdom has long told us to use standard primers for standard loads and magnum primers for magnum loads, and there's plenty of that reloading data available. 19.6 grain charge yielded ~1100 fps. dm440c Well-Known Member Joined Dec 19, 2012 34/7.62 Primer Mil-Spec No. I've always used small pistol primers in the .357 Mag and .38 Special with good results and no ignition problems except with some of the slow burn ball powders (WC820, AA9 and H110) in the .357. LVLAaron said: I admittedly do not much experience reloading .357 mag. Smith and Wesson R8 (5 inch barrel) Using Hornady 125g XTP hollow point. Berger Load Data. Hornady Load Data. Sierra Load Data. Historically .357 Mag. At the range, I immediately liked the feel of the recoil- seemed even and more smooth somehow than the H-100 that I normally use. Winchester® #209 777 Primers - 100-Pack. Refine by Package Quantity: 100 1000. Nosler Load Data. Depending on what cartridge you are reloading, you need to buy the proper size primer for that application. Federal makes both small pistol primers and small pistol magnum primers. 'small magnum pistol primers' Search results for: 'small magnum pistol primers' 2 Items . .357/.38 will be my first experience reloading a wheelgun caliber. The Hodgden load data uses magnum primers for all their 357 loads. I had the Dillon XL-650 setup for 357 Magnum, so I thought I'd give this powder a try. I tumble them before loading so that I can easily inspect and weed out any cracked or otherwise damaged brass. That is not always true. Refine by Package Quantity: 100 1000. 11 FS Accurate No. - 130gr.) Find here common products in this primer size. . These primers are NOT recommended for loading high pressure loads such as 357 Mag, 357 Sig or 40 S&W. Yea, you are correct, you go ahead and use standard Remington primers in high pressure rounds if you want. I fired these magnum loads from my Ruger GP-100 357 Magnum 6″ stainless revolver. Cup thickness, cup size, composition of compound and flame temp. Due to different barrel lengths, type of bullet . Set Ascending Direction. 35/50 Cal BMG Primer. Especially if loading light for caliber bullets (90gr. Alliant Powder® Smokeless Powders. The Lee load data has the same load info. CCI Mag primer. 207, Brian Pearce did an excellent job of showing that magnum loads in his .357, even using H-110, actually perform better with standard primers. Winchester® Rifle Primers. As mentioned, if you are loading slow Magnum pistol powders like 296/H110 then it is recommended to use the Magnum primer. The case volume of a .357 case is also larger than a .38 special.
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