GG,

I purchased a BFR 45-70 around 6 months ago and it is a very nice caliber.

Accuracy wise, it is a shooter. I use the 400 grain Speer with IMR 3031 and it shoots lights out. Recoil is stout with the 400's, but it doesn't have the twist and thump of a 454 ( I don't have a 460 so I can only compare to the 454).

With the 300 grain stuff moving around 1600, it's a big baby. I could shoot it all day. I shot a lot of 405 grain cast through mine around 900 fps and it really shines there as well with little recoil.

I love the caliber, I went with the 10.5" barrel for mine. A very heavy and cumbersome gun, but I can shoot it well.