[1LoneWolf75]

Would a .45 (weight mentioned above) long colt bullet work fer loadin a .45-70? If so how to load it?

 

[Alpo]

Accuracy should suck massively.

First, 45 pistol bullets are normally 452, although occasionally you can find one 454. 45 rifle bullets are 458 or 459. Little undersize. Then, being that undersize, it should lead the bore greatly.

Add all that to "there ain't no loading data for a bullet that light", and you come up with, "Hmmm, this probably won't work well".

 

[DocHolliday]

Like Alpo mentioned above 45 cal pistol bullets are 452 and most 45-70 take a .460 cast or .458 factory bullet.
I pour my own at .460 and they shoot great.

Doc