reloading 357 magnum primers

From the start to finish everything to you need to know about reloading 357 Magnum.https://www.patreon.com/user?u=10462972 The relatively thin-walled cartridge cases must remain intact when a round is fired. Primer type (Regular, Magnum, Multi-Purpose) Brisience (spark) is only one factor to consider. This practice has fallen by the wayside over the years. It has a steel core and will pierce an engine block. You can use either one in reloading the .357. CCI Mag primer. Current factory ammo delivers substantially less performance, i.e., velocities are 150 to 200 fps lower. 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. 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. An auto cartridge headspaces on the mouth of the cartridge, so you basically just remove the bell from the case mouth. Show I would add here that Hodgdon published data uses srmp for all their 300blackout, but I have been using the CCI #41. You will need to find the right powder and primer combo that works for you. Refine by Package Quantity: 100 1000. The pressures you are dealing with on .357 Magnum pistol cartridges range into 35,000 PSI. 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. You go right ahead and disregard. 2 Accurate No. Small Pistol Magnum Primers (SPM) are a key component for ammunition reloading. . 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. You should also make sure there's no debris or other obstruction lodged inside the case. loads with a 158-gr. 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. The case volume of a .357 case is also larger than a .38 special. In addition, rifle cartridges and components from RWS stand for the highest quality standard and first-class precision.RWS primers are subject to demanding . 34/7.62 Primer. You can load anything from light target loads to large game hunting loads. The 357 Magnum is a very versatile round. 34/7.62 Primer Mil-Spec No. You will need to find the right powder and primer combo that works for you. 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. Good Luck. Find here common products in this primer size. A deduction in powder charge or change in components can cause dangerous pressures. Hornady Load Data. 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 . Due to different barrel lengths, type of bullet, seating depth, primer type and other factors, you may not get near the FPS charted. I have seen plenty of reloading data using small pistol primers but not small pistol magnum primers. Rounds Case 5.000. The main difference in loading for this and the 9mm is crimping. Midsouth Shooters offers an extensive selection of reloading and shooting supplies, tools, and equipment. . Good Luck and have fun. 35/50 Cal BMG Primer . 35/50 Cal BMG Primer . Winchester® #209 Primers for Shotshells. While large, the important thing is that firearms constructed to SAAMI standards are designed to withstand the 35,000 PSI pressure peak. Sierra Load Data. I've never used Longshot for 357 but a quick look at the Hodgdon site shows them using Winchester small pistol magnum primers. Remington Load Data. 35/50 Cal BMG Primer. 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. with these powders. . This load consisted of 14.4 grains of Alliant 2400, Remington 5 1/2 small pistol magnum primers, and Speer 158 grain JHP bullets. Winchester also makes small pistol primers for the .357. 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. 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. In addition, rifle cartridges and components from RWS stand for the highest quality standard and first-class precision. Refine by Product Family: Mil-Spec No. Winchester® Rifle Primers. Speer Load Data. PR-LP . Winchester also makes small pistol primers for the .357. CCI Small Pistol Magnum Primers #550 in stock. RWS 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. Primer Size: 357 Magnum: 357: SPM: 357 Maximum: 357: SPM: I had the Dillon XL-650 setup for 357 Magnum, so I thought I'd give this powder a try. I have been reloading for about 6 months and only have experience reloading .45 ACP. Refine by Product Family: Mil-Spec No. lead semi-wadcutter bullet and a large pistol primer, you know you've . Federal® Centerfire Primers. Once upon a time, the loading manuals recommended small rifle primers for the .357 Magnum cartridge. .357/.38 will be my first experience reloading a wheelgun caliber. Search results for: '357 primers and gun powder' 12 Items . With Mag primers, I would . Sierra Load Data. Refine by Package Quantity: 1000 . Magnum primers are hotter and tend to ignite powder in a different pattern than standard primers. Berger Load Data. You can use either one in reloading the .357. Speer list max speeds using lead bullets of under 1,100 fps to prevent . Magnum Rifle Primer Mil-Spec No. Bullet size is .355″ (9mm) (jacketed) in diameter. Primers are typically sold in packs of 100, or bricks of 1000 (10 packs of 100). The pistol rounds usually are ;oaded with a faster burning powder including some of the shotgun powders that are used in reloading. 357 mag; 9mm luger; 44 mag; 45 colt; 25 auto; Shop all pistol brass; primers. (See note on Powders below or read all about various Powders .) In the 357 mag data, there is a foot note which partially reads Do not reduce powder charges with 296 powder. A lot of people believe that loading the .357 Mag. They utilize modern non-corrosive and non-mercuric initiator mixes for the cleanest burn possible. However, in Handloader No. 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. IMR Smokeless Powder - Rifle. Thanks for you open mindedness and willingness to learn from somebody who has been at it for 30+ years. - - - Below, are three loaded rounds. 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. 4.5 grains at 850 to 6 grains at 1100 seems to be the range. 6MM(.243) . Lapua Load Data. These loads must be used exactly as shown. Refine by Use: Reloading Package Quantity 100. RWS Load Data. I fired these magnum loads from my Ruger GP-100 357 Magnum 6″ stainless revolver. Winchester® Smokeless Ball Powder. I expected more velocity based on Quickload and Hornady data. 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. 7 Accurate No. . Alliant has load data for two 158 grain bullets on their web site. Federal makes both small pistol primers and small pistol magnum primers. 34/7.62 Primer. 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, …). dm440c Well-Known Member Joined Dec 19, 2012 I have been reloading for about 6 months and only have experience reloading .45 ACP. The Lee load data has the same load info. Depending on what cartridge you are reloading, you need to buy the proper size primer for that application. The .357's maximum average pressure is specified at 35,000 psi. Winchester 296. But, this isn't the best powder for 900 f/s loads. Thanks for you open mindedness and willingness to learn from somebody who has been at it for 30+ years. CCI® Primers - Per 1000. It is just a guide and the reason you should start under these charges and work up. Powders .) 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. 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. RWS 5333 Large Rifle Magnum (LRM) Primers. . Without knowing bullet weight and powder charge, I'd stick with that personally. But, this isn't the best powder for 900 f/s loads. The mag primer does put out a little more burn for this situation. Northeast Reloading is your source for bulk Hornady Sierra, Berry's. Low prices, fast shipping on all products. The new 357 was too long for the 38s chamber, and helped prevent these hot loads being fired in weaker revolvers. Most 38 sp bullets will have a crimp groove. ALL Accurate 4100 Accurate No. Since its introduction, the .357's ballistics have gradually diminished. That is not always true. Refine by Product Family: Mil-Spec No. Use magnum primers and a heavy crimp. 11 FS Accurate No. This past weekend at a gunshow I was only able to locate small pistol magnum primers. - 130gr.) 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. Hodgdon® Smokeless Powder. . Northeast Reloading is your source for bulk Hornady Sierra, Berry's. Low prices, fast shipping on all products. This past weekend at a gunshow I was only able to locate small pistol magnum primers. A large number of Olympic victories prove the excellent quality of RWS ammunition, which many well-known and competent top shooters rely on. Lapua Load Data. Berger Load Data. The armor piercing round was bought commercially (in the 70's). Especially if loading light for caliber bullets (90gr. So if it were me, I'd use magnum primers - but people have used spp and srp. 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. Unless you are loading with one of the so-called magnum powders such as Winchester. When the higher pressure standard was used, nearly all US ammo manufacturers used small Standard rifle primers in their factory 357 Mag loads. Only show this user. Bullets are .357″ for jacketed and .358″ for lead in diameter. requires the use of magnum primers. It was ugly. 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. Good Luck and have fun. but uses the regular small pistol primers. . small rifle; small pistol; large rifle; large pistol; Shop all primers; rifle brass. When powder burns, it can generate multiple peak pressure points over time. Small Pistol Magnum Primers (SPM) are a key component for ammunition reloading. This load consisted of 14.4 grains of Alliant 2400, Remington 5 1/2 small pistol magnum primers, and Speer 158 grain JHP bullets. .357/.38 will be my first experience reloading a wheelgun caliber. However, in Handloader No. 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. 'small magnum pistol primers' Search results for: 'small magnum pistol primers' 2 Items . Sort By. Set Ascending Direction. Rounds Box 100. Federal makes both small pistol primers and small pistol magnum primers. Of course, now i save my w296 and h110 for 300 blackout subbies and use tightgroup w/standard primers in my 357. Nosler Load Data. 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. Primer Size: 357 Magnum: 357: SPM: 357 Maximum: 357: SPM: A large number of Olympic victories prove the excellent quality of RWS ammunition, which many well-known and competent top shooters rely on. Historically .357 Mag. Find products with excellent quality and value here. . 24 nosler; 243 wssm . The 357 magnum is simply a lengthened 38 Special cartridge. Due to different barrel lengths, type of bullet . Refine by Package Quantity: 100 1000. 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. Ambient temp - 38f. Note : You may use the 38 Special die set to reload for the 357 . Refine by Use: Reloading Package Quantity 100. pressures may have been even higher; and if you shoot one of those old .357 Mag. LVLAaron said: I admittedly do not much experience reloading .357 mag. Smith and Wesson R8 (5 inch barrel) Using Hornady 125g XTP hollow point. . Pistol primers side by side: 44 magnum (large pistol primer) and 357 magnum (small pistol primer) Related search terms 357 158 gr Bullets Jacketed Hollow Point35 brass . Load data for caliber "RWS 4047 Small Pistol Magnum (SPM) Primers". 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. The Hodgden load data uses magnum primers for all their 357 loads. 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. Refine by Package Quantity: 1000 . are also differences. Loads for .357 Sig: (Note: These ARE MAXIMUM loads, you should use 10% less to start.) 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. Federal is using true 9mm and not .38 or .357″ diameter. Find here common products in this primer size. As mentioned, if you are loading slow Magnum pistol powders like 296/H110 then it is recommended to use the Magnum primer. CCI Primers are continuously tested and improved. Box Case 50. A magnum primer really comes into its own when you load a good size rifle round that requires slow burning powder.

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