Dunno why you want those heavy bullets; I mostly use 150s.
Anyhow, I've gotten excellent results with the Sierra 165-grain HPBT. I've always gotten inside an inch at 100 yards, and while messing around on my 500-yard range, I got two four-shot, 4" groups.
I guess I've only used the load on one deer. About 65 yards on a doe. She took a step just as I shot, and the bullet went through the shoulders instead of the neck. Blew out the biggest exit wound I've ever seen, with a big chunk of bone on the ground.
Boat-tails are fine at longer distances, after they slow down a bit. The jackets are a bit thinner than the flat-base.
If your shots are mostly inside of 300 yards, the boat-tail doesn't give any advantage. My father killed somewhere around a hundred deer during his hunting years, and used the 150-grain flat-based bullet exclusively, after WW II. (Don't know about his pre-war loads.) In front of witnesses, he killed deer out to 500 yards.
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