In 1879 the U.S. did trials at Sandy Hook and retained the .45-70 as there was no worthwhile benefit to the 90 gr charge.
thanks for the replies. was going to dabble in a bit of everything, but the 5744 load i've seen duplicates the black powder velocities or close to it which is good enough for me. i also was hoping to try the "gould" bullet of 330 grains with the big hollowpoint. i've heard this is a very excellent bullet for deer. some people have had issues with the 1:18 twist i hear, some have found it ok.
I believe 1:18-1:22 is standard for the 45-70. Shouldn't have any problems with a 300 gr. bullet, though personally, I feel the 45-70 shines with about a 400 gr.
If you want to shoot smokeless go with the .45-70. If you want to shoot silhouette, definitely go with the .45-70.
But, if you want a 1000 yard rifle, pick the .45-90 each and every day. I have seen a few .45-70's beat larger cartridges at 1000 yards, when used by the very best shooters. I've seen many more cases where the 45-70's get excessive vertical dispersion at 1000 where my .45-90's did not. At 1000 yards bigger is better as long as you can tolerate the recoil. This will matter less in most gong shoots, but it matters a whole lot when trying to keep shots in the 9 & ten rings in a Creedmoor match.
With that said, for anything other than long range, a .45-70 is going to be a very good choice.
Chris.
I imagine the 44-77 must be a very nice bp cartridge, i would think it would be pretty close to the 45-90 but with a little less recoil. Have you had any experience with that cal?
Most 45-90's seem to be in good shape. Often for sale "only fired twice".........