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Discussion Starter #1
if a 45/70 was reamed out to 45/120 or something, would it still be able to fire a 45/70? kinda like how you can shoot 2.75' shotshells in a 3.5' shotgun or shooting 38 special in a 357 mag
 

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Welcome aboard!! :D You can, but performance would suffer due to the looooong throat!!

Tim
 

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Discussion Starter #3
would the rifling "shred" the bullet because of the greater acceleration before it encounters the rifling?
 

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I asked my gunsmith this exact question a couple weeks ago just in case I wanted to shoot the midget rounds in my 45-120 BC, he said it would hurt nothing, I'd just have to clean it good before shooting the 45-120 rounds in it.

Tim
 

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Hold your horses here.......

First of all you will have what is called bullet jump to the rifling, this of course will cause inaccurate shooting.. not good unless you like to waist ammo.

Secondly there have been many who like yourself that have reamed the chamber up from 45-70 up to even the 45-120 and done what is called ringing the chamber. But of course these were done with black powder cartridge loads.

If you do this, make sure you clean your chamber real well.

I used to shoot quite a bit of .38 special in a .357 mag, and after many rounds of .38 special the .357 mags didn't want to chamber.

They also discovered this problem with the .454 Casual when shooting .45 Colt rounds in the same chamber, and then trying to chamber the longer .454 rounds they just wouldn't chamber because of chamber ringing from powder burn. NOW they offer an extra cylinder for this purpose like with the Raging Bull and others.

But what ever floats your boat.
 

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Tangent question: is it safe to shoot .45 colt in a .45-70? I know it's not a good idea b/c accuracy will suffer, due to .451 vs. .458 bore. But is it safe? I've always wondered why it's not an issue when the bullet's edge hits the "shelf" or "lip" at the end of the chamber, where a non-bottlenecked cartridges headspaces - seems like in a worst case scenario, this would cause the bullet to yaw and therefore get stuck and therefore blow up and hurt you. Revolvers are different because there's a forcing cone. But how come this phenomenon doesn't happen in single shots or leverguns shooting .38/.357 or .44spl/.44 mag, etc., with wadcutter or semi-WC bullets? Seems dangerous.
 

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FirstFreedom said:
Tangent question: is it safe to shoot .45 colt in a .45-70? I know it's not a good idea b/c accuracy will suffer, due to .451 vs. .458 bore. But is it safe? I've always wondered why it's not an issue when the bullet's edge hits the "shelf" or "lip" at the end of the chamber, where a non-bottlenecked cartridges headspaces - seems like in a worst case scenario, this would cause the bullet to yaw and therefore get stuck and therefore blow up and hurt you. Revolvers are different because there's a forcing cone. But how come this phenomenon doesn't happen in single shots or leverguns shooting .38/.357 or .44spl/.44 mag, etc., with wadcutter or semi-WC bullets? Seems dangerous.
the 45-70 case is quite a bit larger in diameter then the .45LC. it'll wobble around and not position properly
 

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I think even if you could set the .45 off in the 45-70 chamber, you'd only do it once and the .45 case would rupture since it's only .480 in diameter ahead of the .512" rim and the 45-70 chamber is .505" ahead of the .608" rim.

Tim
 
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