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Opinions on suppressor/projectile clearances

O

OnTheMoors

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Minuteman
Aug 23, 2017
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I just picked up a ruged alaskan 360 ti. It is "rated" for 338 lapua pressure, velocity, and powder charge. The actual aperture diameter on the end cap I measured is .410 who here would be comfortable shooting 375 h&h or 375 ruger through it for hunting; if it were yours?

.410-.375= .035
.035÷2= .0175 clearance around projectile.
 
Should be fine.
You can purchase tight tolerance rods from McMaster Carr, several feet for a few bucks. Get the dimension you need to align the suppressor with bore. I have the std. Geissele sized alignment rods but have mad a number of others for different calibers.
Even Geissele instructions suggest with his alignment rod.....use "minute of eyeball" gauging to decide.


Screenshot 2024-02-28 at 6.54.13 PM.png
 
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strikeeagle1 said:
Should be fine.
You can purchase tight tolerance rods from McMaster Carr, several feet for a few bucks. Get the dimension you need to align the suppressor with bore. I have the std. Geissele sized alignment rods but have mad a number of others for different calibers.
Even Geissele instructions suggest with his alignment rod.....use "minute of eyeball" gauging to decide.


View attachment 8360597
Click to expand...
Thanks for the input. Also good idea with the gauge rods.
 
I think that's tight. But if your barrel threads/MD/suppressor, can all be verified concentric, well then you do you boo.

Seems .040 over would be damn close, even with precision machining: after a different makers barrel, MD, etc. Tolerance stacking definitely be what it is
 
fdkay said:
Maybe you should do something crazy and ask the manufacturer
Click to expand...
I'd bet they said no, or didn't specify that particular caliber. That's why "rated for .338lm" was claimed
 
fdkay said:
Maybe you should do something crazy and ask the manufacturer
Click to expand...
I spoke to 2 different people at rugged 1 said yes 1 said no, hence the question. I have no doubt it can handle the pressure of the load. It's purely a bore diameter issue that I'm concerned about. Looking at form 1 forums it looks like it would be on the tighter end of good to go. But if the consensus is it would be a bad idea then I'll probably look at something like a 9.3x62
 
Last edited:
OnTheMoors said:
I spoke to 2 different people at rugged 1 said yes 1 said no, hence the question. I have no doubt it can handle the pressure of the load. It's purely a bore diameter issue that I'm concerned about. Looking at form 1 forums it looks like it would be on the tighter end of good to go. But if the consensus is it would be a bad idea then I'll probably look at something like a 9.3x62
Click to expand...
Fair enough, you didn't indicate that you got two differing responses from the manufacterer.
My concern would be, if a bullet isn't perfectly stabilized, you'll have baffle strikes.
Better safe than sorry.
 
It is a combination of bullet clearance, and accuracy, to tight and accuracy sems to suffer. .070 seems to work very well as far as clearance and optimal accuracy. Also use a alignment rod to check your clearance.
 
Just my .02 but I wouldn’t.
Just knowing how shit works for me I’d ruin a suppressor.
 
Update. I have an AB can and love it I'll probably throw the alaskan on a 357 carbine. And just grab an AB raptor 375. Thanks for the replies everyone.
 
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