Thread: Throat Erosion - New Barrel

Originally Posted by 6x47

Why? JBs is more aggressive than Autosol.

I'll tell you a little story about Autosol. My NRA target rifle had a 30" Krieger bbl and it shot moly'd 155 Sierras with great accuracy at 2950. Here was the cleaning regimen that never varied. With a patch wrapped round a worn .270 brush, Autosol was lathered on and run back and forth through the bbl for 8-10 strokes. Repeated this, then wiped out with a clean patch. At over 3000 rounds, we had a look with a borescope and there was no visible rounding off of the lands and the bore was bright and squeaky clean. At a documented 5000 rounds, I decided to shoot it over a benchrest as I suspected it might have gone off the boil. It produced a 5-shot group of sub half inch. The accuracy finally went to pieces about 400 rounds later but you'd be hard pressed to convince me the barrel was ruined by Autosol.

It was in fact Steve Blenkarne ( the orig owner of Truflite) that suggested it to Tony Halberg and I adopted the method. Steve used it all the time apparently.

Yep i agree, the autosol treatment was also first recommended to me by a very experienced top target shooter too, i'll keep using it, as it works. I've tried the CLR on one problem barrel i have here and it left some strange marks in the surface of the bore, i think ill be leaving that stuff for Eric.