hey guys don't know if post will go but I have 100 pc.s of Bertrum brass .338 edge the weight spread was 8.1 gr maybe I got some of the learning curve! also the necks would trim all the way around on some cases not at all on others I got the.363 neck bushing and had 9 cases with little to no neck tension threw them away! Found 100 new 300 ultra mag brass from norma the weight spread is 3.1 the cases are 3.5 heavier than the heaviest Bertram, primer pockets are very tight and not as deep as bb, thicker web maybe pockets will last also necks are so tight on measure I saw no need to trim$2.00 each! the edge Shawn has built for me has never fail me I do my part it what its made to do "there is no substitute for practice , don't waste a great rifle"! Doug
