Suppressors Anybody ever run a can on a Kimber Montana?

[RyeDaddy]

I (almost, awaiting tax stamp)have a TOMB mount SAS Reaper I posted about. It's main job is on a 300 Blackout, but will pull duty on all my rifles because why not?

My Kimber Montana in 260 is my main hunting rifle, and now that silencers will be legal for deer and other game animals next season, I want to get it set up for the can too. The muzzle diameter is 0.559", so I can't thread it 5/8-24, but Tim from SAS says 1/2-28 will be fine on a 260 so I'll get a 5.56 TOMB and have it bored out to accomodate the larger caliber, no big deal. Should be a dynamite combo as the Reaper is so short and light!

My question is if anyone has run a can on a pencil weight barrel like this before? Will hanging 13 or so ounces with the brake and can on the end of a barrel this light have major adverse effects? I'm figuring I'll have to redo my load probably as the harmonics should be significantly altered, but I may get lucky. Anyone out there who says this is not worth doing?

 

[TGagnon]

Re: Anybody ever run a can on a Kimber Montana?

Just try it at the range by shooting 3 rounds at a steady but expedited pace to see how the heat affects it. Besides you should really only need one and if a botched shot two. On long strings of fire though like my M1A I purchased a shorter medium weight barrel to get rid of the pencil thin profile for the long distance as I had plans to shoot it for much more than 1-3 rounds.

 

[RyeDaddy]

Re: Anybody ever run a can on a Kimber Montana?

Heat definitely affects it. It will do better than MOA with handloads for 3 shots in 5 mintues, but once the barrel heats up, groups widen considerably. I'm not planning on running this as a long range competition rig, just trying to get it set up as hearing safe for hunting. So yeah, I only need 1 shot, but I do take it to the range occasionally to maintain proficiency with it.

For illustrative purposes here's a pic of the rifle with a TOMB on it, the barrel fits inside the 5/8-24 threads, but the 1/2-28 thread TOMBs are the same size. Nobody has any experience to say that adding lollipop-ish weight on a pencil thin barrel will make it squirrely? I'm just making sure there's not some big reason not to run a brake of this size on a thin barrel before I have the rifle threaded and potentially ruin the accuracy of what is to me the ultimate hunting rifle.