Gunsmithing Muzzle Brake Crush Washers

[BCX]

I just picked up a Terminator T4 brake and want to try it on my Proof barreled 338 LM AI. Currently using a APA Gen 2 Fat Bastard which is self timing. I don't want to send the barreled action back to my smith for the indexing of the T4. Is the use of a crush washer my only option or is there a nut available?

 

[PinesAndProjectiles]

What's the thread of the muzzle? You may be able to buy shim washers from McMaster-Carr to effectively time the brake.

 

[BCX]

3/4 x 24

 

[Trigger Monkey]

Use shims, not a crush washer

Advanced Armament Co (AAC) Barrel Shim Kit 338 Lapua Mag 6PK

AAC's Barrel Shim Kit includes 6 different shims of varying thicknesses for the purpose of properly timing a flash hider or muzzle brake on a particular...

www.midwayusa.com

 

[BCX]

Thank you!!

 

[Tim_WNC]

These work really well also. Much easier to use than shims.

Accu-Washer® Muzzle Device Alignment System

Precision Armament Accu-Washer Muzzle Alignment System - accurately index muzzle brake, flash hider, suppressor, compensator with perfect bore alignment ...

precisionarmament.com

 

[Balor]

BCX you could also use AP MFG's adjustable jam nut.

 

[Trigger Monkey]

OP's barrel is threaded 3/4-24, accu-washers and the jam nut won't help him.