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short barrel .410


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#1 kiwi collector

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Posted 26 May 2008 - 01:08 AM

Hey Guys, just wondering if anybodys gone the short barrel tromix type conversion around 10" - 12" if its the same format as the 12g model in that you have to move the gas block back as well, if so what will it still cycle on, light loads or heavy.
Am thinking it could be a great toy to have next to its bigger brother THANKS

#2 Tom Cole

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Posted 26 May 2008 - 09:31 AM

I did a FA conversion on one of the little fellas........not very practical, but a lot of fun.......till you run out of cheap . 410's and brake into the hi brass commercial loads...........gets $$$ in a hurry. A couple guys can shoot up twice the price of the gun in ammo in about a 1/2 hour, and that was with just one 10 rd mag..........Keep watching though, I intend to do some things with the .410 this summer.........in a short barreled kinda way.............~~~~~~VK~~ :smoke: ~~~~~
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#3 kiwi collector

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Posted 28 May 2008 - 05:56 AM

Thanks Vankiller for the reply, I guess not many people have bothered to SBR the little .410 compared to the 12g.
I see that tony on his website has a short barreled one listed and the saiga factory makes quite a range of AK look alikes, to me the long barrel is just not pleasing and gets in the way, a short barrel and handguard would improve its appeal and use alot more.
Any chance Tony would like to drop a hint regarding gas block set back and hole size for say a 10" -12" barrel length, I'm From NZ and we are allowed to have a 30" overall length of shotgun, the .410 was intended for the other half to play with, she loves my Tromix inspired 12g but not the boot it gives.
Thanks for any help

#4 jhereg

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Posted 28 May 2008 - 07:32 AM

Thanks Vankiller for the reply, I guess not many people have bothered to SBR the little .410 compared to the 12g.
I see that tony on his website has a short barreled one listed and the saiga factory makes quite a range of AK look alikes, to me the long barrel is just not pleasing and gets in the way, a short barrel and handguard would improve its appeal and use alot more.
Any chance Tony would like to drop a hint regarding gas block set back and hole size for say a 10" -12" barrel length, I'm From NZ and we are allowed to have a 30" overall length of shotgun, the .410 was intended for the other half to play with, she loves my Tromix inspired 12g but not the boot it gives.
Thanks for any help



Minor detail, but it would be a SBS since it's a shotgun. It would be a SBR if you were making a rifle out of it.
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#5 TonyRumore

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Posted 28 May 2008 - 09:07 AM

The factory .410's use a single gas port drilled anywhere from .140 to .169.
I moved the gas block back 2" on the 10.5" model and used a single .140 gas port.
However, if I did one again, I would probably use multiple gas ports of smaller diameter.

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#6 KrisFox

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Posted 28 May 2008 - 12:05 PM

The factory .410's use a single gas port drilled anywhere from .140 to .169.
I moved the gas block back 2" on the 10.5" model and used a single .140 gas port.
However, if I did one again, I would probably use multiple gas ports of smaller diameter.

Tony

Whats the reasoning behind using several smaller ports over one larger one?

Also is there a magic number of ports? 4 maybe?
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#7 TonyRumore

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Posted 28 May 2008 - 12:34 PM

You get less fouling (wad pieces coming through the holes) when you run smaller diameter ports.

The factory uses 3 or 4 ports on all the guns except the .410's for some reason. It wouldn't surprise me if the new .410's being made now have 3-4 small ports instead of one big one though.

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#8 kiwi collector

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Posted 29 May 2008 - 02:00 PM

Thanks Tony for the information, just what I'm looking for, are you able to cycle short loads or 3" only with the 10.5 " set up ??

Thanks

#9 kiwi collector

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Posted 05 June 2008 - 02:06 AM

Well guys, got the .410 SBS all done last weekend, what a great toy to play with, more fun than my SBS 12g, fireball out the muzzle from 3" shells almost no recoil or muzzle lift, knocks down steel plates, I'm thinking I might have to build another one for myself seeing as this one is for the other half, Thanks to all who helped.

#10 superhawk138

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Posted 05 June 2008 - 04:53 PM

Well guys, got the .410 SBS all done last weekend, what a great toy to play with, more fun than my SBS 12g, fireball out the muzzle from 3" shells almost no recoil or muzzle lift, knocks down steel plates, I'm thinking I might have to build another one for myself seeing as this one is for the other half, Thanks to all who helped.

Sounds like fun, Got any pics?

#11 phagar

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Posted 18 June 2008 - 04:30 AM

Left side folding stock. Semi or three round burst and 11" barrel. Right hand photo has five hulls in the air. Since these photos were taken I have added a door breaching adapter.

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Edited by phagar, 18 June 2008 - 04:46 AM.


#12 BobAsh

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Posted 18 June 2008 - 06:10 AM

Nice job on the gun.

Take notes, fellows...this guy really knows how to post a gun pic!
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#13 phagar

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Posted 18 June 2008 - 04:10 PM

Thank you.

#14 Bounce

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Posted 17 September 2008 - 06:31 PM

.410 door breaching??? mmmmmmm.... will it hunt?




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