45 Long Colt in .410?

[aplinker]

I have a Springfield SS M6 Survival rifle which, for those that don't know, has a double barrel with .22lr (in my case - some have .22 hornet or many others) and a lower barrel for .410.

My question is, even though I know it's not rifled and accuracy won't be great, would it be safe to use .45 long colt? Even better - .454 or 460S&W (doubtful on those )

If they made it so it could do .454/460 this would become truly an "any use" rifle - from varmints, to birds, small and even large game.

[gunrun45]

454cas has a thicker case wall to prevent anybody from sticking it into a 45LC chamber. I'm thinking no. Even if it did, I would bet that the steel wouldn't take the excessive pressures of the 454cas round.

I know there is specific prohibition against smooth bore handguns but I'm unsure about the rifle part.

In any event, some 410 shotguns can accept 45LC rounds. I DO NOT recomend using higher end pressure 45LC rounds in these (like corbon, bufflo bore, etc...). I would specifically ask a knowledgeable gun smith before attempting it with the rifle in question so that he or she can examin it first for any possible issues that may exist.

Short answer. Yes, sometimes with the right gun and ammo.

[aplinker]

454cas has a thicker case wall to prevent anybody from sticking it into a 45LC chamber. I'm thinking no. Even if it did, I would bet that the steel wouldn't take the excessive pressures of the 454cas round.

I know there is specific prohibition against smooth bore handguns but I'm unsure about the rifle part.

In any event, some 410 shotguns can accept 45LC rounds. I DO NOT recomend using higher end pressure 45LC rounds in these (like corbon, bufflo bore, etc...). I would specifically ask a knowledgeable gun smith before attempting it with the rifle in question so that he or she can examin it first for any possible issues that may exist.

Short answer. Yes, sometimes with the right gun and ammo.

Yeah, that's pretty much what I was figuring... I think I'll start with Springfield and see what they say. I do know they made a "carbine" version that's rifled for .45 Colt and it doesn't look any different than the non-rifled barrel, so maybe...

http://www.gunshopfinder.com/springfield/M69601.asp

[tankerman]

454cas has a thicker case wall to prevent anybody from sticking it into a 45LC chamber. I'm thinking no. Even if it did.

45 Colt and 454 Casull both have a base and neck diameter of .480.

The 454 Casull case is thicker (strengthened) in the webbing, which is internal.

The only difference between the two other than length in the outside dimensions is the 45 Colt has a slightly thicker rim.

The reason you can not fit a 454 Casull in a 45 Colt chamber is because the 45 Colt chamber is shorter.

I use the same dies for both calibers.

[CSACANNONEER]

Why not just shoot .410 slugs? That's what I do in mine. Well, I have slugs, 00 and #7 1/2 reloads for it. What would be the real advantage of shooting low pressure 45LCs in it?

[aplinker]

Why not just shoot .410 slugs? That's what I do in mine. Well, I have slugs, 00 and #7 1/2 reloads for it. What would be the real advantage of shooting low pressure 45LCs in it?

Size... and I was hoping to use higher pressure 45LC.

[tankerman]

Size... and I was hoping to use higher pressure 45LC.

You can get better velocity from a 400 grain 410 slug than a 255 grain 45 colt.

Check this out,

http://www.hoeningbigboresouth.com/Big%20410%20Ballistics.html

[CSACANNONEER]

Although I've been known to push the envelope on some things, I won't trust the barrel of my M6 with high pressure 45lc loads. Except for the size thing, I will suggest getting a couple boxes of .410 brass cartridges and loading them with LC bullets seated flush. They would look cool and be easy to identify.

[tankerman]

SAAMI pressure standards for .410 = 12,500/2.5", 13,500/3.0"
.45 Colt = 14000 (non-Ruger guns)

[aplinker]

Although I've been known to push the envelope on some things, I won't trust the barrel of my M6 with high pressure 45lc loads. Except for the size thing, I will suggest getting a couple boxes of .410 brass cartridges and loading them with LC bullets seated flush. They would look cool and be easy to identify.

Well that reminds me of the "other reason" I forgot to include - I can reload .45LC, but I'm not set-up for .410.

You think the .410 brass cartridges could be reloaded in a 45LC set-up?