I have a ruger no1 that I plan to rebarrel to a 45-70 or 45-100, but It�s difficult to choose. I like to use this rifle for smokeless powder only. I allready have the reamers and reloading dies for both calibers, and also 200 brass in caliber 45-100 and 300 brass in caliber 45-70. The brass is from Starline for the 45-100 and from PMC for the 45-70. I like to use both cast bullets and other bullets in caliber .458

The 45-70 have very small powder space I think, but maybe it�s enough of space anyway. The rifle weights 10 pounds with a 26" heavy barrel.

I allready have two bolt rifles in caliber 458 Win and 458 Lott so I like to have a caliber with rim.

I bought the brass, reamers and reloading dies for the 45-100 becourse that I planned to rechamber my sharps to that caliber from a 45-70, but now I think about a 45-110 in that rifle.

Anyone here who like to give me some advice about this?

Karl-Erik
There's lots of guys who know more then I about the specifics of these two calibers. As I understand it, the 45-100 case is 1/10th of an inch longer then the 45-70 case, the major difference between the two was the 45-100 used a 300 grain bullet and larger power charge for higher velocity.
With that said, it's my guess you could shoot the 45-70s in the 45-100 like the 38 Special and the 357 mag. I'd chamber for the 45-100.
I shoot two 45-70s, one bolt gun and one Winchester lever. Explore the shooting of cast bullets in this caliber, in my opinion, there's no reason to shoot jacketed bullets.
Jim

The 45-70 is 2.1" long and the 45-100 is 2.6" long. It�s more space in 45-100 than in 458 Win.

Karl-Erik
OK
I'd still make the chamber 45-100. You can seat the bullets further out if you are using the 45-70 case.
Jim

I have a Ruger No 1 in 45/120/3.25. With smokeless loads I can get 2400fps with 500gn Hornady softpoints.
This rifle is a custom job with heavy 28" oct barrel and french walnut stock.
I would go woth the 45/100/2.6"

Thank�s for your answer. How many times can you reload your cases when you use that load in your 45-120?
I have talked to Starline about that pressure they have tested their cases for the 45-70, 45-90 and 45-100. They said that they had tested them at the same pressure that they use in maxload in the caliber 458 Win. About 53.000 Psi I think.

I don�t want to load this rifle that high, but I want a rifle wich can push a 400 grains bullet or 350 grains bullet at 2100 fps with very low pressure.

How many times do you think that I can reload the cases when I use loads wich is below 40.000 Psi and with a good done chamberjob?

Best regards
Karl-Erik Svensson

I have a No. 1 in .45/70. It is O.K., but I think I'd like it better if it used a longer case, so loads wouldn't have to be compressed as much. However, with a full-house load using the 400-gtain bullet, it delivers 2270 FPS MV and 57 ft/lb of recoil! So I have no desire to load it hotter than that! In this rifle, a 500-grain bullet at 2400 FPS would remove your shoulder!! That's a lot better than a .458 Win., and the "issue" Ruger .45/70's are too light for such ammo!!

Let us know how your .45/100 works out!!

[ 11-16-2003, 21:31: Message edited by: eldeguello ]