Gunsmithing Boring out a suppressor
- Thread starter Movistar
- Start date
You may be able to find some useful information here: http://www.silencertalk.com/forum/
Did you try calling Griffin? That would be my first step.
Good Luck!
Did you try calling Griffin? That would be my first step.
Good Luck!
I’ve contacted Griffin on other occasions for “custom” work. I was told quite straightforwardly that they don’t do custom work.
I know that Thunderbeast will re-core a can but they also explicitly state that they cannot change the caliber during a re-core. Someone with a 6.5 Ultra wanted to re-core to 30 cal Ultra and they said due to regulations that it was not possible. I think you may not be able to do what you want here.
Movistar, here is a link that addresses questions regarding suppressor repairs and modifications as interpreted by the ATF and the Small Arms Review editorial staff in a 2008 article titled:
ATF answers the questions on suppressor repairs
The caliber change question is specifically addressed in Q5.
I leave the final legal interpretation up to you but NFA regulations are things you do NOT want to violate!
And yes, all suppressor openings are slightly larger than stated caliber because they have to allow for the bullet to exit without causing a baffle strike. I am pretty sure there are limits as to how much oversize they can be before they have to be registered as a different caliber.
ATF answers the questions on suppressor repairs
The caliber change question is specifically addressed in Q5.
I leave the final legal interpretation up to you but NFA regulations are things you do NOT want to violate!
And yes, all suppressor openings are slightly larger than stated caliber because they have to allow for the bullet to exit without causing a baffle strike. I am pretty sure there are limits as to how much oversize they can be before they have to be registered as a different caliber.
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+1.....In addition, even if the can is "user serviceable" (meaning the baffles can be removed from the body/tube by the owner/user), the baffles will be of a specific geometry that is not particularly conducive to overboring them. Yes, it can be done, but no, it isn't worth it. This is a relatively expensive sport and cans aren't all that bad price wise in the grand scheme of things. Yes, there is the $200 tax stamp and waiting for approval thing, but stay on the right side of the law.
I buy cans in .308 and use smaller end caps for my smaller caliber stuff, works fine. Yes, on paper, I lose a couple of db of suppression, but it isn't enough to bother me or lose sleep over.
I feel the OP's pain. I bought a silencer ages ago that works great but weighs a ton (two pounds) and it just sits in favor of my other 308 cans that are lighter.
I talked to the manufacturer who could replace the steel baffles with titanium ones but he said that would only save 4 or 5 ounces and that most of the weight was in the tube. Due to the above mentioned restrictions, can't replace the tube.
Hmmm, I wonder if it could be shortened enough, though, to keep the serial number in tact but screw titanium sub tubes on it.
-Stooxie
I talked to the manufacturer who could replace the steel baffles with titanium ones but he said that would only save 4 or 5 ounces and that most of the weight was in the tube. Due to the above mentioned restrictions, can't replace the tube.
Hmmm, I wonder if it could be shortened enough, though, to keep the serial number in tact but screw titanium sub tubes on it.
-Stooxie
Don’t know how much I buy into that train thinkn. I bot my SiCo Omega with 2 endcaps. 22 and 30 cal. So is it Multi-Cal?? And quite frankly I use 30 cal end nearly exclusively. You need decible meter to discern the diff between while shooting 223 and you dont have to worry bout swapping endcaps for diff calibers. That is a whole diff story ?
I bought all four of my CF cans in the 30 cal version; never had any regrets, even while using them on a 223AI. Sent a 30BA back to TBAC for the Ultra recore, and felt it was money well spent, as I'd stopped putting the BA brake/mounts on barrels, and had no use for it as it was. Now thinking about sending a 30CB9 in for the recore - it's just so frikkin' heavy compared to the 30BA/Ultra. If it wasn't such a PITA to sell or trade suppressors, I'd just peddle it or trade for a 6.5mm can.
Dead Air Sandman-K might fit the bill, and it's still on sale for somewhere in the $570 neighborhood. With stamp and sales tax, should be around $800. Just as another option, anyway... Short and really light looks more like an Ultra 5, but now you're doubling the price.
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@krw
The atf rules a baffle or any another suppressor part as a restricted part with the same status as a illegal functioning suppressor if found in your possession, you cant have extra parts laying around-PERIOD. You can legally buy (and alter)a endcap cause they are not suppressor parts, just like boosters and muzzle break mounts, ergo the reasoning your logic fails.
Additionally, the tech branch has ruled a gunsmith or manufacturer cant change calibers just like they cant lengthen the oal when making repairs.
The atf rules a baffle or any another suppressor part as a restricted part with the same status as a illegal functioning suppressor if found in your possession, you cant have extra parts laying around-PERIOD. You can legally buy (and alter)a endcap cause they are not suppressor parts, just like boosters and muzzle break mounts, ergo the reasoning your logic fails.
Additionally, the tech branch has ruled a gunsmith or manufacturer cant change calibers just like they cant lengthen the oal when making repairs.
