Acurizing my Kimber Montana

[Stevo539]

Crap!  I finished bedding the action on this thing last weekend.  Been waiting all week to get out to the range.  So I loaded up the Kimber, a Garand, and a couple of handguns.  I got all the way out to the range and realized I'd forgotten to bring any ammo for the Kimber.  Doh!  Stupid, stupid, stupid!  It wasn't a total loss.  I shot the Garand and the handguns.  I'm going to the inlaw's this afternoon and we have plans for Easter so it looks like it'll be another week.  I really wish I had a place that I could shoot right off the back porch instead of having to drive a half hour to shoot. 

Steve

[Cascade_Sherpa]

I know this thread is already full of advice but I can only agree with some of the previous posts regarding copper fouling.  I have a sako finlight in 300wsm and had some similar problems.  After reading a book by one of the editors of a gun magazine that talked about the almost religious cleaning required by the 'wsm's' it made sense.  The author found that his groups opened up after half as many rounds as a comparable caliber rifle (not a wsm).  An entire chapter was dedicated strictly to reviewing several wsm and wssm's.  And the theme was "if you want tight groups, spend a lot of time cleaning the pipe."  The author gave a good review to the rifles but said if you want a low maintenance rifle, get a 30-30; if you want the Ferarri of rifles, be prepared to treat it as such.  I've since found a lot better groups from the sako after lots of time consuming cleaning........

[Stevo539]

Thanks, good to know that bit.  I'll make sure to keep 'er clean.  I cleaned it thoroughly with Sweets 762 copper solvent.  High ammonia stuff designed to desolve the copper fouling.  Got lots of the usual black crud but very little green stain.  So at this point I think I'm OK on the copper situation.  I'll make sure to keep it that way. 

After seeing how loose the action fit the stock, I have high hopes for the new bedding.

Steve

[Camo]

My experience with the Montana in 300WSM has been very positive. However, we are shooting a bit lighter bullets. I am shooting 168gr Barnes TSX with 7/8" - 1" groups consistently and better if I am on. My father is having similar results shooting 150gr Sierras out of the same model gun. Not having shot the bigger pills, I wouldn't know what kind of difference to expect, but may have an effect. 

[shag]

Steveo,  Make sure if all else fails to seat that bullet deeper.  I tried every load bullet, powder combo out there.  Wasn't until the bullet went deeper in the case that it became a dream rifle.  shoot everything I try now awesome.

[Stevo539]

Steveo,  Make sure if all else fails to seat that bullet deeper.  I tried every load bullet, powder combo out there.  Wasn't until the bullet went deeper in the case that it became a dream rifle.  shoot everything I try now awesome.

Thanks, I'll try that.  How far off the throat are you seating?  What cal & what is your overall case length?

Steve

[509er]

Just curious if you remedied the kimber problem and if so what was the cure/cause?