I suspect it can be done but leaves you needing to justify living at the safety margin
375s come from the factory from several makers with a 5/8x24 thread pitch. the absolute minimum wall thickness accepted for bottleneck rifle calibers by pretty much everybody is .100 inch muzzle wall. The 5/8x24 puts you right at that minimum considering the minor thread diameter is 0.575 for this thread pitch
Also, depending on the taper of your barrel you may need a longer thread with a conical nut added to the barrel to allow you to have adequate shoulder if you choose to use direct thread mount system. That or cutting it back until you have enough shoulder to provide friction as the base of the suppressor as it abuts the barrel
in any event you’ll need to move your front sight
Now, understand that this is to allow the absolute minimum wall thickness considered safe. It says nothing of adding additional safety margin
This also says nothing about the effect to your precision of having a wall thickness at, not above, the safety margin
There are examples from gunsmiths showing a wall thickness greater than this eventually, through use, forming an oval muzzle that reduces precision and, at worst, could contribute to a baffle strike on a brake or a can
It boggles my mind but there are documented examples of 5/8x24 pitch shooting 30 cal and this happening to the point that groups opened up
One would presume that this could be negated by always using a thread cap, can, brake, etc that adds meat around the threads to prevent “ovaling” but at minimum I think it argues to always be above bare minimums
my own take would be to recommend going above minimums when muzzle concentricity is on the table. 11/16 or 3/4 is “more adequate” than 5/8 in this case and what I’d advise
better than my opinion would be to call your suppressor manufacturer and discuss it with them. Please let us know what they say. Always good to have more guidance
375s come from the factory from several makers with a 5/8x24 thread pitch. the absolute minimum wall thickness accepted for bottleneck rifle calibers by pretty much everybody is .100 inch muzzle wall. The 5/8x24 puts you right at that minimum considering the minor thread diameter is 0.575 for this thread pitch
Also, depending on the taper of your barrel you may need a longer thread with a conical nut added to the barrel to allow you to have adequate shoulder if you choose to use direct thread mount system. That or cutting it back until you have enough shoulder to provide friction as the base of the suppressor as it abuts the barrel
in any event you’ll need to move your front sight
Now, understand that this is to allow the absolute minimum wall thickness considered safe. It says nothing of adding additional safety margin
This also says nothing about the effect to your precision of having a wall thickness at, not above, the safety margin
There are examples from gunsmiths showing a wall thickness greater than this eventually, through use, forming an oval muzzle that reduces precision and, at worst, could contribute to a baffle strike on a brake or a can
It boggles my mind but there are documented examples of 5/8x24 pitch shooting 30 cal and this happening to the point that groups opened up
One would presume that this could be negated by always using a thread cap, can, brake, etc that adds meat around the threads to prevent “ovaling” but at minimum I think it argues to always be above bare minimums
my own take would be to recommend going above minimums when muzzle concentricity is on the table. 11/16 or 3/4 is “more adequate” than 5/8 in this case and what I’d advise
better than my opinion would be to call your suppressor manufacturer and discuss it with them. Please let us know what they say. Always good to have more guidance
