Thanks folks for all the replies/info.
I did PM PennDog and he replied. Yes, he finished it but seems he's busy with other projects. Sent me a pic of a target and his load w/I4227 seems similar to the one I use except he used a 70 gr bullet and I'm using the 75 gr Speer flat nose. I ran five out of my 7.5" revolver over a chrono got about a 1640 fps ave. The bullet performed "perfectly" (animal died) on a smallish javelina (30lb dressed). Lungs and liver were "mushy" and the bullets exited (yes, bullets plural, He was still standing after the first and a short run so he got #2) That particular bullet designed for the 25-20 might be a bit "soft" at 256 velocities out of a carbine length bbl?
I have not checked that load over a chrono out of my Marlin 62. That's a project for later in the summer. I'm still interested in the 77/256 and waiting to see if PDog replies with some more info for me.
I will look into some of the bullets you folks are recommending. If not for the 256, then for my 25/20.
davet, nice to see the old rifle still takes game. Might have to look for one of those m25's for myself.
Somebody needs to talk Hornady into making us a 25 cal leverevolution soft tip bullet about 70 grs or so that we could use in our 25-20's and .256s.
Thanks again guys,
Geno