Excessive copper fouling in a Tikka

Underthegun

Underthegun

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Has anyone experienced excessive copper fouling in their Tikka? I’m not sure if it’s the barrel that’s the problem, or the bullet. Here are the particulars.

Tikka T3X Lite Stainless
6.5 Creedmoor
130gr Accubond
H-4350 powder

The load is stupid accurate, but the fouling you see in the pictures is after only 9 shots. The gun is new, with only about 50 rounds through it, so maybe it will get better in time, but the accuracy seems to seriously fall off after 20 rounds.

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With groups like that, I'd be happy clam and just clean it more often. I'm sure it will improve over time if it's a new barrel. I certainly wouldn't be rebarreling it. If it doesn't clear up in a couple hundred rounds you could try lapping I suppose. I'd give it some good wipeout cleans every 10 for the next few times out and see what happens.

Nice shooting sir.
 
yes my tikka HB in 22 250.. gave it a good cleaning. grouping better now. the copper that was in there was lots
 
How many rounds before the accuracy drops off?
Used to be a problem with Barnes X , aftre 3 or 4 fouling shots my 375 stayed consistent for over 20, used it for years hunting, just kept the clean and foul routine
 
I've shot a few hundred rounds of 45gr TSX through my Tikka Superlite in 22-250 and ran the Barnes CR2 through it occasionally. After a couple of patches there's very little blue on the rag. Don't remember the last time I swabbed the bore, maybe 2 years ago?


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remington jim said:
Underthegun Your load there is a common 6.5 CM one BUT Your rifle is a AMAZING shooter ! You show a 3.286 " OAL of your 6.5 CM ammo -??? RJ
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Base to ogive using the Hornady comparator. I do not zero my caliper when I put the comparator on the caliper. Subtract 1” for the actual base to ogive measurement.
 
For that, I would run some copper remover and a brass brush and give it a scrub to get back to bare metal. Run patches until they come clean. Then I saturate a patch with a few drops of oil and run it down and leave it. I run one dry patch before heading to the range and the fouling is significantly reduced for me.

As for products, I'm still nursing a couple cans of Gunslick foaming bore cleaner (f'in love this stuff) and plain old Hoppe's oil. I think Wipe Out would also work well on the bore, leave it overnight and run a patch afterwards to clear out the junk. It has a protectant but I like uniformity so would use an oil on unprotected metal surfaces afterwards regardless (edit: same oil I use elsewhere on the gun - as new I will pull it from the stock and wpie all surfaces down with an oily rag to clean and protect).
 
Have any of you tried putting graphite in the bore? I saw a video on youtube where Speedy Gonzales runs a patch with lock eaze in his bore after cleaning for first shot consistancy and to decrease fouling.
 
I'd just clean it every-time you shoot it for awhile; and see what happens. Or take your cleaning gear to the range. It's a little early to conclude that the accuracy drops off after 20 rounds with a rifle that only has 50 through it.

I have one rifle that was only good for 3 groups from clean. Had to clean it at the range to prove it, but it was repeatable and proveable. On the advice of a forum member I hit it with Dyna bore coat and it cleared that up.
 
Dogleg said:
I'd just clean it every-time you shoot it for awhile; and see what happens. Or take your cleaning gear to the range. It's a little early to conclude that the accuracy drops off after 20 rounds with a rifle that only has 50 through it.

I have one rifle that was only good for 3 groups from clean. Had to clean it at the range to prove it, but it was repeatable and proveable. On the advice of a forum member I hit it with Dyna bore coat and it cleared that up.
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I’ve got my own range at the house. This load quickly grew then immediately shrunk after cleaning. It was up to 2”. Cleaned, shot a 3/4” group on the clean barrel. Shots 4-9 are shown in my op
 
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