no those NPT hold together surprisingly well out of my Weatherby 257 ,i also use Swift 100 grain. A-Frames. but a poor made bullet would not be pretty on a animal ,i tried a old B.T. years ago on a doe antelope and that was a mess " ick ". with this new 257 Roberts built i will have 4 - 257 Roberts for my family members in their future hunts ,i will build plenty ammo too for them too, my hunting land is paid for now too.
