I love my BLR takedown 358. For white tails I shoot either 180 or 200 grain bullets for hogs I move up to 225 and 250 grain round noses. Both give DRT performance. Have yet to recover any of them so don’t know about retained weight or mushroom diameter. It does what I am looking for which is short copious blood trails. Very little if any bloodshot meat. I am jealous of your pre64 featherweight. Guess I’ll just have to keep using my BLR 😁
