• Winner! Quick Shot Challenge: What’s the dumbest shooting myth you’ve heard?

    View thread

Suppressors suppressor alignment

CarbonMTN

224 Overbore
Full Member
Minuteman
Feb 21, 2012
380
132
36
NV
I have my gun being threaded my a local shop (A) and really dont know much about them but they are the only ones in town that do threading. and the other shop (B) I go to for my other goods say that they have had nothing good to say about them (A). So idk if Shop B is talking shit about shop A just so they get my business... but shop B doesnt thread barrels in house so why talk trash?

Shop A says that they have done thousands of barrels and none have come back with an issue.

But mistakes can happen anywhere but the last thing I need is a ruined can with a baffle strike. So how can I check the alignment.? with my factory guns that come threaded, I just look down the barrel to see if i can see a "good hole."

do alignment rods work? but for $75 is there a more cost efficient option or just spend $75 for peace of mind.?
 
Last edited:
Yep drill rod is probably your cheapest it asking if someone in your area has a dedicated alignment rod you can borrow
 
Bought both Geissele rods years ago but sold and replaced w/ drill rod from McMaster Carr. But a quick look down the bore from the chamber end is really all you need to tell you if you've got issues.
 
.223 Rod = 0.216 (0.007 Undersized)
.264 Rod = 0.248 (0.016 Undersized)
.308 Rod = 0.297 (0.011 Undersized)
Those are groove diameters. The rod will be on the lands and a lot less undersized. 223 is more like 218-219 and 308 is 299-300. So actually an even better fit
 
Those are groove diameters. The rod will be on the lands and a lot less undersized. 223 is more like 218-219 and 308 is 299-300. So actually an even better fit

Huh? No, those are the exact measurements of the portion of the rods that get inserted into the bore that contacts the lands. Measured with my Mitutoyo.
 
Huh? No, those are the exact measurements of the portion of the rods that get inserted into the bore that contacts the lands. Measured with my Mitutoyo.
Right, but the bore diameter(land tops) are smaller. 30 cal is a .300 bore, 6.5 is a .256 bore etc. Nothing wrong with the measurements you took, you just compared to the larger groove diameter. Thanks for the rod measurements.
 
  • Like
Reactions: Geno C.
I have my gun being threaded my a local shop (A) and really dont know much about them but they are the only ones in town that do threading. and the other shop (B) I go to for my other goods say that they have had nothing good to say about them. So idk if Shop B is talking shit about shop A just so they get my business... but shop B doesnt thread barrels in house so why talk trash?

Shop A says that they have done thousands of barrels and none have come back with an issue.

But mistakes can happen anywhere but the last thing I need is a ruined can with a baffle strike. So how can I check the alignment.? with my factory guns that come threaded, I just look down the barrel to see if i can see a "good hole."

do alignment rods work? but for $75 is there a more cost efficient option or just spend $75 for peace of mind.?

In addition to all the other good suggestions here, please realize that once the threads are cut, there is no "adjustment" that is able to be made, other than cutting/parting the newly threaded portion of the muzzle off and starting over. Threading muzzles for cans is not difficult. However, it requires that the 'smith spend time "dialing-in" the bore of the barrel to be perfectly concentric in the chuck/headstock of the lathe. This operation is in the same manner as what would be done when setting up a barrel for chambering.

If your 'smith has chambered barrels before (which sounds like he has......and perhaps lots of them), he ought to know exactly what to do. Where people get into trouble is when they cut corners and don't spend the time to dial in the barrel in the lathe, but then go ahead and thread the muzzle anyway.