They used the 338BR in silhouette competition back in the 60s before jd was playing with whispers.and this one is really a full size BR case with the neck set to the cal you want. JD jones seems to get upset when folks use his trademarked whisper name and its not worth fooling with him. We have been calling this one the 338BR to avoid confusion with the 223 based cartridge and also because it was the first one to have been used. You can do it in one but the neck thickness isn't as consistent. The lapua stuff is much better and we normally use two buttons to bring the neck diameter up from 6mm. I've had the sides split the first shot and consistency case to case is crap. I started out using Remington 7BR brass which is available every once in a while but it is crap brass. The reamer I'm using doesn't seem to care, neck area is large enough to accept the ridge. I haven't seen any accuracy differences but some chambers don't like the ridge left when you pull the shoulder up into the neck on the 6mmBR cases. I've done a few AR 10 types and they work well but aren't as accurate as the bolt guns. 473" bolt face and typical short actions work fine. All of them have been very accurate, easy to load for and the quietest subsonics I've yet heard suppressed. A friend using my reamer had done a number of Remington 700's and they are great shooters. Encore Rifle Barrel, 257 Roberts, Chrome Moly Blued, 26, 1-10 Twist. Use the form below to build your custom barrel. 8 in twist is standard though some prefer a bit faster if they run copper solids or the lehigh brass solids. Our base pricing is as follows: 6.5 15.875. We are shooting everything from 300gr Sierra matchkings at 1050fps to 180 Barnes or Hornady at 2300fps or more depending on barrel length. The reamer is available from PTG I think.have to look at mine. There is another 338 whisper based on the necked up 223 case that is a waste of time. We use 6mmBR cases made by Lapua necked up to 338. One must observe all possible safety precautions and practices in accordance with proper handling of any explosive. Its based on the 30 Benchrest which is a shortened 308 case. Load Data WARNING: The task of reloading center fire metallic cartridges should only be undertaken by someone familiar with reloading procedures. Or form brass from 6.I've done quite a few barrels for the Desert tacticals in 338BR which some call the 338 whisper. Starline does a 10 mm mag run every once and a while. you can find alreaqdy formed brass on gun broker or just around teh net. I have an email into BWE firearms to see what they have in stock as far as the items listed above.ĭies can be gotten from CH tool and die, or the Hornady custom shop. If they could get them out faster i think would sell a lotThat was my question.can I get the barrel, dies, and brass to put it all together? I couldn't come up with anyone in my searches that sells the. but getting a barrel or upper is hard to get. What I did was cut/form/ream 6.8 brass and use it until the 10 mm mag brass came in then tweaked the loads.Īgreed. The 10 mm magnum brass is not hard to find when it is available, you just need to buy in bulk when it is and it is relatively cheap. less case capacity, but isn't that what buying wildcats is all about? Less case capacity is hardly an issue when running sub-sonic loads and the thicker 6.8 brass last forever, not that I have ever worn out any 10 mm magnum brass yet either. Sure, using 6.8 brass requires a bit of work and ends up with about 1 gr. Seems to be you can find 6.8 brass just about anywhere these days. 338 Spectre brass hard to find? News to me.
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