45.70 in a 12ga

Sisco · November 25, 2002, 08:28 AM

Yesterday at a gunshop I saw an adapter that would allow you to shoot 45.70 gov through a 12ga. Apparently it's a rifled sleeve that slips inside the barrel of a shotgun, only works with break-open type guns, not pumps or autos.
Kits were boxed, didn't actually see the hardware itself. Anyone familiar with these?

Dave McC · November 25, 2002, 03:46 PM

This comes around every once in a while. The oldest version I've seen had a big BP style elephant cartridge liner for an 8 bore double.

Trouble is, once the liner is removed and replaced, the zero is history. As a semi permanent installation, it might work,IF....

The rifle round is low pressure. Even in 45-70, loaded down in factory ammo for all those trapdoor Springfields, the pressures are far greater(On the order of 35KPSI) than for shotgun rounds(Max 13,500 PSI),IIRC.

Not a great idea, IMO....

OBIWAN · November 25, 2002, 06:39 PM

It would be kind of neat to do it in and Over /Under in only one barrel and leave a 12 gauge in the other.

A sabot slug might be almost as good though...and less confucsing to reload

Sisco · November 28, 2002, 08:47 AM

I see a potential for abuse. I can imagine someone deer hunting in a shotgun only zone getting themselves extra yardage out of their gun.

Mannlicher · November 30, 2002, 05:42 PM

I agree that a .45/70 might be a little much for a shotgun to handle in some cases, especially one of the older double guns. One of the HR or NEF single shots might be ok. Those seem to be darn strong.

kobun · December 1, 2002, 08:15 PM

This is a big thing in Germany.
They have rifle sleeves in all kinds of calibers to use in their shotguns.
Kind of neat... if you can only have one gun...

K.

November 25, 2002, 08:28 AM	#1
Sisco Senior Member Join Date: March 25, 1999 Location: KS Posts: 1,558	45.70 in a 12ga Yesterday at a gunshop I saw an adapter that would allow you to shoot 45.70 gov through a 12ga. Apparently it's a rifled sleeve that slips inside the barrel of a shotgun, only works with break-open type guns, not pumps or autos. Kits were boxed, didn't actually see the hardware itself. Anyone familiar with these? __________________ "I don't mind it when stupid people say stupid things. Stupid people should be encouraged to say stupid things, that way we always know who the stupid people are." ~ Ted Nugent http://www.awbansunset.com/awcountdown_sm.gif

November 28, 2002, 08:47 AM	#4
Sisco Senior Member Join Date: March 25, 1999 Location: KS Posts: 1,558	I see a potential for abuse. I can imagine someone deer hunting in a shotgun only zone getting themselves extra yardage out of their gun. __________________ "I don't mind it when stupid people say stupid things. Stupid people should be encouraged to say stupid things, that way we always know who the stupid people are." ~ Ted Nugent http://www.awbansunset.com/awcountdown_sm.gif

November 30, 2002, 05:42 PM	#5
Mannlicher Senior Member Join Date: July 8, 2001 Location: North Central Florida & Miami Posts: 3,209	I agree that a .45/70 might be a little much for a shotgun to handle in some cases, especially one of the older double guns. One of the HR or NEF single shots might be ok. Those seem to be darn strong. __________________ Nemo Me Impune Lacesset "The trouble with our liberal friends is not that they're ignorant; it's just that they know so much that isn't so.".........Ronald Reagan

December 1, 2002, 08:15 PM	#6
kobun Senior Member Join Date: February 17, 2002 Location: On top of a big pile of ammo Posts: 148	This is a big thing in Germany. They have rifle sleeves in all kinds of calibers to use in their shotguns. Kind of neat... if you can only have one gun... K. __________________ "A broken heart heals faster than two broken knee-caps"

November 25, 2002, 03:46 PM	#2
Dave McC Staff In Memoriam Join Date: October 13, 1999 Location: Columbia, Md, USA Posts: 8,811	This comes around every once in a while. The oldest version I've seen had a big BP style elephant cartridge liner for an 8 bore double. Trouble is, once the liner is removed and replaced, the zero is history. As a semi permanent installation, it might work,IF.... The rifle round is low pressure. Even in 45-70, loaded down in factory ammo for all those trapdoor Springfields, the pressures are far greater(On the order of 35KPSI) than for shotgun rounds(Max 13,500 PSI),IIRC. Not a great idea, IMO....

November 25, 2002, 06:39 PM	#3
OBIWAN Senior Member Join Date: March 16, 1999 Location: Colorado Posts: 2,340	It would be kind of neat to do it in and Over /Under in only one barrel and leave a 12 gauge in the other. A sabot slug might be almost as good though...and less confucsing to reload