Problem child barrel
I have a barrel on a 6.8 build that just absolutely refuses to group anything I feed it, the best I can seem to get are groups anywhere from 2" at 100 yards and those are rare with the more common sizes being around 5" or 6", or worse, and always, always have these wild flyers (usually several) that will impact nowhere near where the rest are hitting.
I've really tightened up my reloading technique and even tried a different brand of dies. I've tried 6 different powders, 5 different bullets and weights, different brass and about the only constant is the CCI41 primers which is basically all I have.
I had shot about 400 rounds through this thing trying to get it to perform( not looking for sub MOA groups) with any degree of consistency and had not given it a thorough cleaning so I did that with hope. My hope was dashed when it continued to shoot very erratically, 2 or 3 shots looking like they might make a decent group and then 2 shots 6 or 7 inches away, every damn time, or they're all just all over the place. Another 2 or 3 hundred rounds and I took off the muzzel device, easy since it's just a Vortex FH and looked in the bore at the muzzel, the tops of the lands were covered with copper so I used some CR-10 and decoppered it. Off to the range, first group was 28.8gr of LT-30 under a 90gr Gold Dot, my best load from the last trip, and it was decent but still nothing to be proud of and then everything afterward was crap again.
Tonight I took off the FH again and all of the copper is back, just like before. Now, if copper deposits in any rough spots, and it's all over the tops and edges of the lands that means the rifling seems to be in pretty rough shape no? Also, there are sections of some of the lands which are not coated with copper and then there is long sections that are, like there are really deep defects in the surface of the lands. Is this what is or could be causing the ever present flyers and very poor accuracy?
There is no copper wash in the grooves or along the edges of the lands like I normally see in barrels, just all down the tops of the lands as far as the flashlight will light and as far as I can see.
Please, any thoughts on this? This barrel has done this since day one and I'm tired of wasting powder, primers and bullets trying to get this thing to shoot. Honestly, I'd be ok with 2" at 100 yards if I could get it to shoot 2" groups at 100 yards every time, or even most of the time.
RealeyesRealizeRealLies
BCM 16" RECCE MK2 DkBrz, Custom Mk12 Mod1 built by Monty LeClair, 16" Middy w/ HCS RECCE barrel, A5, Young NM BCG, SSP, Geissele NM rail, Ops Inc., Super CH. 14.5" middy Noveske Afghan X3, 10.3" pistol DD barrell, Benelli M4, Ruger 10/22 w/Victor stock, GLOCK 17 Gen 4, Dan Wesson Valor Duty Coat, Dan Wesson Valor Blue, Dan Wesson Silverback 10mm, S&W 27 4"
B Co 4th502nd Inf Reg. '86-'90. 11b
B Co 3rd187th InfReg. '90-'94. 11b
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