in previous posts everybody was "whining" about the cost of the brass-you can make them out of 7mm mag or 264 brass (a liitle more work)-remington makes limited runs of 7mm weatherby brass (one pass through the sizing die and you got it)-i have less than 100.00 invested in new brass (100 cases)-i just don't worry about it anymore-the 257 "BEE" is a fun round and if you reload doesn't have to cost an arm & leg to shoot-just my two cents-whsk
I have made 257 weatherby brass from 300 H&H magnum brass, which involves case forming, trimming, annealing and fire forming. The ammo worked flawlessly.
If you choose 7mm Remington Magnum or 264 Winchester Magnum brass it will be approximately .050” too short and will cause the hot gases to cut a groove which will hinder or prevent real 257 Weatherby brass from ejecting.
yooper77
