I've got to say I'm been a little surprised of late how differently some South African surplus ammo I bought last winter shoots out of my gun (Sako A7 .308) depending on how fouled up the barrel is. Lately, I've been using Wipeout when cleaning the barrel,,,, usually after I've put a 2-3 boxes through it. This past weekend I put a fourth box through it before cleaning it and. When I was using a bench rest the groups were MOA at a 100 yards,,,,,not bad for cheapo surplus ammo.
Flipped the first target upside down since part of it was already peppered with holes:


Even when I was lying down just using my pack as a rest at 80 yards it was pretty darn accurate:

BUT when I cleaned the gun Saturday afternoon with Wipeout and shot off what ammo I had left (12 shots) the next day, albeit windy, my first grouping was at least 4-5 inches! By the 4th grouping it got back down to 2 1/2". I can't believe how shoddy the groups were with a real clean barrel. I should also mention that when I've been using the Wipeout all I'm noticing coming out of the barrel is carbon fouling, not the tell tale blue copper fouling you often see when using that product. The gun is only one year old so maybe there hasn't been a lot of copper build up yet??
I haven't sighted it in yet with my go to hunting ammo,,,,that will be next weekend but I'm wondering if I should just keep running a few more of the S.A. crap down the pipe to see if the groupings get nice and small again before sighting it in with the good stuff?
What do you think,,,,,clean or not to clean until the hunting season is over? Most seasons I doubt I take more than half a dozen shots with any one rifle I'll use,,,,and some of those are mid season test shots to see if the gun is still sighted in.
Flipped the first target upside down since part of it was already peppered with holes:


Even when I was lying down just using my pack as a rest at 80 yards it was pretty darn accurate:

BUT when I cleaned the gun Saturday afternoon with Wipeout and shot off what ammo I had left (12 shots) the next day, albeit windy, my first grouping was at least 4-5 inches! By the 4th grouping it got back down to 2 1/2". I can't believe how shoddy the groups were with a real clean barrel. I should also mention that when I've been using the Wipeout all I'm noticing coming out of the barrel is carbon fouling, not the tell tale blue copper fouling you often see when using that product. The gun is only one year old so maybe there hasn't been a lot of copper build up yet??
I haven't sighted it in yet with my go to hunting ammo,,,,that will be next weekend but I'm wondering if I should just keep running a few more of the S.A. crap down the pipe to see if the groupings get nice and small again before sighting it in with the good stuff?
What do you think,,,,,clean or not to clean until the hunting season is over? Most seasons I doubt I take more than half a dozen shots with any one rifle I'll use,,,,and some of those are mid season test shots to see if the gun is still sighted in.




















































