I also use RCBS dies for my 243 WSSM D-Tech reloading and have not had any problems. However, it should be possible to approximately equal the published velocities with carefully assembled maximum reloads using 55, 95, and 100 grain bullets. The .243 WSSM can run the 115 Berger VLD at 3,150 fps and the 105 Berger VLD at nearly 3,300 fps. According to the Accurate reloading data you are near the starting load so should not be an issue. The drastic reduction in diameter required to form the .25 WSSM case seriously work-hardens the neck and shoulder areas, and split cases are frequent after a … RCBS dies are one of the sets that I have used for the WSSM's without issue. I have a dtech 243 wssm upper. They also do a deal where you can send them your rifle for $250 and they load up custom rounds for it. I'm still working on my loads but it's already showing good signs mines a 243wssm. My Olympic .243 wssm upper has behaved perfectly with H4895 pushing 105 grain speer hot cores. I loaded the 243WSSM cases for several years for my AR, the brass is thick and tough to deal with until you get it adjusted right, then it's just normal reloading procedures. Can't say anything about the .243 wssm ar platform but I have an older Browning A-bolt chambered in it and absolutely love the the cartridge! However, he made one mistake. I am working with one now and have had the same issues in the past. Mine shoots just fine and I've always liked Winchester brass. You may have to register before you can post: click the register link above to proceed. These are set up with special throating and longer barrels, of course. Find 243 WSSM Reloading Dies, and 243 WSSM Die Sets for sale here: Get the right 243 WSSM Die or 243 WSSM Die Set for your press here at Midsouth. I whipped some of my compatriots the last time I was down on the desert by using the .25 WSSM and the 131 Blackjack bullet out to 1,500 yards. I loaded some 62 gr varmint grenades that are suppose to be running 3865fps so hopefully those will do well. I also tried a set of redding dies and I am having the same issues. He is meticulous, thorough and conscientious in his approach to reloading and shooting. I found a guy in Rosebud, Missouri that is well educated on 243 WSSMs and is loading me up some 105, and 115s to try out. I wouldn't mind one in the ar platform though! Well after looking in nosler, barnes, and hornady book they use large rifle primers. I think the winchester rounds were made for a bolt action and cant handle the pressure in a 243 wssm ar platform. Before you invest much money in it, since it is used, it would be worthwhile to have a gunsmith look at it with a bore scope. Our goal is to maintain a constant supply of 25 WSSM Brass in stock! Read the article, .243 (aka 6mm) is a STANDARD caliber size. Foxpro Field Staff Reloading Forum (All Calibers) . You need to push the shoulder back just a touch more. I shoot a 243 win and can tell you it is no slouch on out there. Just screw the sizing die down another turn or so until you feel the lever cam over on the shell holder, that should cure your problem. I use RCBS dies exclusively and have done so for 55 years w/no issues, including loads for my Dtech 243 WSSM. Browning 223 wssm ... . I full length resized the cases, measured the bullet length. Well this was my first time loading for this bullet and assumed that since it was a magnum I would use large magnum primers! I have found that RL17 is the golden child in the 243 wssm across a variety of bullet weights. I too am a big fan of the 243 wssm. Nosler Reloading Forum. Perhaps the chrome is coming off. Well after looking in nosler, barnes, and hornady book they use large rifle primers. 243 wssm... Will I have problems with this load? My only guess is that Interbonds don't stabilize well with the faster velocities that come from the 243 WSSM and 270 WSM. Reloading the .25 WSSM is about like any other bottlenecked rifle round. Short answer, 243 if i only had the choice of the two.He will need to practice, practice, practice, and at $25 a box that practice might be limited. With 100- to 120-grain bullets, velocities approach that threshold, but the newer cartridge can do so only by operating at higher pressures—65,000 psi compared with the .25-06’s 53,000 psi. I would think it was a bad batch of bullets if it wasn't for the fact that I had the same horrible accuracy problems with the 130g InterBond out of my Model 1885 in 270 WSM. He was very helpful walking me through the ins and outs of 243 WSSMs. FAQ: Last visit was: Tue Dec 15, 2020 12:43 pm It ... Post subject: 243 WSSM? Also, I have a number or hungry .45 acp's and .44 mag's to feed, as well as some problem children to deal with, so reloading for the 243 WSSM hasn't been a high priority right now. The rounds don't eject all the way and sometimes cause a double feed or jam when the spent brass goes back into the chamber. The .243 WSSM is factory loaded close to the allowable maximum average pressure, which means that reloaders are unlikely to be able to improve much on published velocities. I am having difficulty finding a load that will shoot worth a damn. I am using rcbs fl size dies and looks like the casing has a crown on the exterior of the brass an 1/8" above the bottom of the brass. No problems here either with the above suggestions. I have both a bolt and ar platform chambered in 243 wssm. This 243 WSSM Two-Die Neck Die Set is for bottleneck cases to be fired in bolt-action rifles only—specifically, cases fired out of a specific rifle and neck-sized to go back into the same rifle. Do you have any in stock ? Due to the extremely high velocities achievable with this cartridge, shortened barrel life can result depending on your load. Browning 223 wssm problem. When I reloaded some ammo they would not chamber correctly. The Official Predator Masters Search Engine. Now, realize that my friend has been shooting all manner of firearms, safely, for over half a century. I am afraid you are going to find the brass isnt the problem. I will start a big arguement here, but considerwhere you hunt, what you hunt, you and your sons tracking skills, and how big of a gun your son can shoot comfortably before buying. I am having problems with the bolt closing on once fired brass. If you use a Magnum Primer most manuals who rec. Powders include Hodgdon, Winchester, IMR Hillbilly Brass - Specializing in Reformed WSSM Brass & Previously Fired Rifle Brass. We have 223 WSSM for sale from great brands like Forster, Hornady, Lee, Lyman, RCBS, and Redding reloading products. Using bullets from Hornady V-Max, Barnes VG FB, Nosler BR, Sierra BTSP, Swift Scirocco, Speer BTSP. 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