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View Full Version : double barrel .577-450



camerl2009
12-08-2010, 09:35 PM
i was thinking for a bit and i want to get this done some day
a double barrel rifle in .577-450 ok so i was thinking where to start.
what receiver to use ive seen a .405 win set up on a storger 20ga
this is just for fun and maybe some big game hunting
its a big jump for the single shot martini herny

Buckshot
12-09-2010, 04:05 AM
i was thinking for a bit and i want to get this done some day
a double barrel rifle in .577-450 ok so i was thinking where to start.
what receiver to use ive seen a .405 win set up on a storger 20ga
this is just for fun and maybe some big game hunting
its a big jump for the single shot martini herny

............Well the 'Fat part' :-) of the 577-450 is 24ga size, so I'd say for hoop strength considerations at the breech you'd want a 12ga action to start with.

...............Buckshot

camerl2009
12-09-2010, 04:20 AM
............Well the 'Fat part' :-) of the 577-450 is 24ga size, so I'd say for hoop strength considerations at the breech you'd want a 12ga action to start with.

...............Buckshot

12ga :confused: the .405 win is a butt kicker and put that on a 20ga
i see nothing wrong with the .577-450 on a 20ga think about it for a min
stoeger uses the same frame for the 12ga and the 20 ga on most of there shotguns

gnoahhh
12-09-2010, 11:05 AM
It may be a "butt kicker" but take a look at how much smaller the .405 is in diameter than a .577/450. What Buckshot said is the truth. The thing with using a shotgun DB receiver is they were/are intended for shotshell cartridges that develop less than 15,000 psi. Good ones are proofed at maybe twice that, meaning that one adapted to rifle cartridges is operating at the ragged edge of safety, with little margin for error. I may be off in my judgement, but I'll warrant you not by much. For a project like that I would seek out the best quality modern receiver I could find, not only to gain as much safety margin as possible but also to have a gun that won't shoot loose after a couple boxes of shells. Nothing easy in doing projects like this, and the old axiom of "you get what you pay for" is truer here than anywhere else, re: Stoeger receivers.

Molly
12-09-2010, 08:44 PM
>the old axiom of "you get what you pay for" is truer here than anywhere else, re: Stoeger receivers.

I was at an NRA convention once, and saw some beautiful double rifles that some guy was building on Ruger 12 guage SXS actions, and they were available in some mighty potent rounds. You might think on this some.

hickstick_10
12-09-2010, 08:47 PM
Take a look at "the double gun journal" and see how much beefier the breech is on a double gun compared to shotgun. The 577 is much bigger in diameter then the 405 and thus your breech has to be bigger, like the other fellas said.

They make brand new 45-70 double guns that would probably cost less then this project.

+1 on a stoger action for a double gun frame...........[smilie=1: sorta like putting premium in a ford pinto.

camerl2009
12-10-2010, 03:39 PM
Take a look at "the double gun journal" and see how much beefier the breech is on a double gun compared to shotgun. The 577 is much bigger in diameter then the 405 and thus your breech has to be bigger, like the other fellas said.

They make brand new 45-70 double guns that would probably cost less then this project.

+1 on a stoger action for a double gun frame...........[smilie=1: sorta like putting premium in a ford pinto.

i know thay make .45-70 but im one for the odd stuff i like heads to turn

hickstick_10
12-10-2010, 03:56 PM
Fair enough, you could also rechamber one of the mentioned 45-70s to 45-120 if you want attention, cartridge is huge and it hold more powder.