Barrel cleaning with moly bullets

[JeffG]

Hello all,
I'm new to centerfire benchrest. I have a low buy-in Savage with a used McGowan 6BR 8-twist on it. I've dedicated this spring to trying moly'd bullets.

My question is; How are you cleaning when you use strictly moly; how often, what tonic?

Thanks!
Jeff

 

[Klong]

I shoot mostly highpower rifle competion (out to 600 yards) with a 223 AR 15 and hot loads with heavy grain moly bullets. Most matches are 88 shots and I shoot 176 rounds before cleaning. I clean with 2 wet patches of solvent, soak 5 -10 minutes and 1 patch of IOSSO in a scrubbing motion. Then 1 wet patch and 1 dry patch. No brushes are used in these match barrels. This cleaning confimed with my borescope that the barrel has no carbon ring and no copper fouling. The barrel remains coated with some moly and rifle shoots to the same POI as before cleaning. About every 500 or so rounds, I will clean to bare metal and start over. Bare barrel takes 3 or 4 shots to return to POI after this type of cleaning.

Solvent is Shooters Choice, Butches Bore Shine or Hoppes Benchrest. This is the 4th barrel I have done this way. Barrels are Kreiger or Pac Nor and get between 3000 and 4000 rounds before accuracy goes away at 600 yards.

 

[djones]

Take at a look at the article by David Tubb/Glenn Zediker at http://www.davidtubb.com/tcom_images/articles/mcc.pdf

Other interesting articles at http://www.davidtubb.com/articles.html

Doug

 

[ericskennard]

There are some really fine articles right on 6mmBR.com! Just do a search.

I recomend the Sharp Shoot R Accelerator with a follow up of their Wipe out foaming product. I let it soak for 30- 60 minutes than I wipe it out. If it is blue, you are getting the copper out. If it is mostly tan than it is removing carbon. If I see a lot of blue (copper) than I too use Isso paste. Just polish the bore with it on a patch.

You can't go wrong with moly. I usually get an elevation increase of one minute of angle with the same load of powder. I have never increased my load to get extra velocity. Why do you need to if the moly increases the BC???