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Barrel fouling within 75ish shots

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75 shots sound a bit low to me, but as i am always pushing the edge and so not really doing any hole on hole shooting i cant say for sure if i experience any better.
BUT ! i can say for damn sure that both in my FX and my current CZ barrel rifle i shoot a hell of a lot more shots in between cleanings,,,,,, but i am trying to clean my barrel more frequently CUZ it is not like it is a big deal to do.

I should maybe experiment a little on this some nice warm summer day at the range, CUZ i will very easy do over 1000 shots in a day, and so if it only take that little i can run several batches of shot count tests.

The biggest problem is probably will i go insane shooting a mere 50 M a whole day.

Could be that i have wasted time and ammo for a long time :unsure:
 
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Motorhead said:
If wanting to pull the lead out ? .... you WANT the SNUG & SQUEAKY pull threw of a bore snake !!!!
Wiping the bore with a patchworm is near useless for the task your trying to do.
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My favorite sound when I'm cleaning. The SQEAKY aounds let me know I am basically done other then a light film patch after. I run 3 patches 1/4 folded back to back in line, so 3 patches in bore at the same time. I push em with dowl rods. The Squeaks haven't lied to me yet. I can throw barrel up to light or scope & it's clean. I think alot of people also think there barrel is clean from patch indication but just dragging a loose patch isn't going do it.
 
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greenbeans said:
Yeah I have a bore scope, that’s how I figured that it has a real mirror finish… I already cleaned it after shooting today for the pic, but shouldn’t be a problem to get it bad again and check :)
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If a scope pic was posted I don't see it on my end.? Do you know location were the build up of lead is .? & do you know were the tight spots in barrel are.? I still don't think I'd be going further on a 1 holer at 50 but would be fun to find out were & why. It's gotta be building up in a heavily restriction/choked up area, I bet. I posted a pic of a jagged pit in my groove & also onto the lands on a newer LW barrel . Should be ok now but it would have been a mid barrel lead collector
 
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Jaxjax said:
If a scope pic was posted I don't see it on my end.? Do you know location were the build up of lead is .? & do you know were the tight spots in barrel are.? I still don't think I'd be going further on a 1 holer at 50 but would be fun to find out were & why. It's gotta be building up in a heavily restriction/choked up area, I bet. I posted a pic of a jagged pit in my groove & also onto the lands on a newer LW barrel . Should be ok now but it would have been a mid barrel lead collector
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No bore scope pic posted yet, I cleaned it yesterday so now I have to get it fouled up again :) next time it is acting up I’ll take bore pics and post!
 
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Motorhead said:
Mirror finish is NOT what you want ... but more an @ 320 smooth but buff surface finish.
Scrub the bore with a brush BUT USE NO OIL, KROLL, BALISTOL, WD40 etc ..... Clean outside & safely with NAPTHA / White Gas ONLY and then a liberal application of a HARD WAX such as TREWAX on a warm barrel. Let barrel cool and wax fully harden.
NO NEED to dry patch post waxing ... Shoot It !!! letting projectile take out the wax as & where needed.

Also note an air gun barrel shooting soft lead projectiles IS NO DIFFERENT than a powder burner barrel and leading will happen no matter what you do when velocities are 800 ish and above. You can get the barrel to not foul as quickly, but most instances it will at some point require lead removal cleaning again & again.
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Do you recommend a bronze brush or nylon? Thanks. Good post btw.
 
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subscriber said:
.177 airgun bore snake without brush:

www.amazon.com/Hoppes-24009D-Boresnake-177-Caliber-Airgun/dp/B079NTPV9R
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Nope, it has a brush

IMG_0174.jpeg
 
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I read through this post on your Ghost barrel with the fouling/leading problem at around 50 to 70 shots with great interest. I just purchased a 28" .22 one from AoA that is behaving similarly. Notably, it has a very, very, very tight bore and super tight choke. I almost had to hammer pellets through until I sized them. I found that if I sized the pellets to 0.2175 and lightly lubed them with Slick 50 One Lube, I had much better performance. I am using AEA 22 gr pellets, shooting at about 920 fps. I shot 120 shots and after about 60, the groups started to open up, but then tightened up again. It kind of oscillated that way till the end. One 20-shot group was about 1.5" at the end at 63 yds with the various fliers.

I tried sizing at 0.2180 - no go (I have an old Beeman Pellet Sizer), tried lubing with Whiscombe Honey - no go, tried lubing with ceramic car wax - no go. It is very finicky and only 0.2175 with Slick 50 One Lube.

I noticed that the speeds start to creep up with more shots (and the BC to drop off from 0.055 to 0.046 or less, as well), which I attribute to the barrel leading/fouling up. I get pretty good groups - 0.75" to 0.50" at 63 yards, but then it will throw a flier. Usually the fliers are high, but I can often seem them sprial. Other times, my groups start walking around the bullseye - I assume this is because the pellet spiral is progressing.
I tried shooting a couple of felt wads, but that didn't have much effect other than the supersonic bang. It seems I have to clean with JB Blue Bore Past to get it to settle back. When I tried 0.2180 pellets, there were lead flakes on the cleaning patch.

Is it possible that the cold weather is affecting the barrel (e.g. stickier for lead at the colder temperatures)? I need to do some more testing as it warms up, as well as try sized JSB pellets.

Certainty an eye-opening experience on barrel fouling and helps explain problems with other barrels that I have. It gives me some hints for addressing my EVO SubMOA barrel as well.

Here are my shots at 63 yards today (110 shots averaging 914 fps). The circles are 1.25", with a 0.375" inner bold circle.

1740534654968.png
 
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Just asking, is the 906 to 925 the optimal fps that the rifle shooting desired pellets correct. Seems a little "hot" to me, not faulting, but possibly could be? Just an idea. Also correct sizing on OD is very viable, and that is part of the pie or accuracy. Speed and pellet material can be artificially affecting barrel fouling just my two cents. I am only chiming in cause I love problems and the solutions that can be found from them. Best of luck and keep posted if you find anything else apparent.
 
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@greenbeans What did you come up with regarding the barrel and accuracy falling off? The mirrored bore may not be the true issue if it's not streaking up with lead. I say this because a muzzle and or crown can be wrecked when a bore is polished wrong, and I didnt read the bore looking like crap after that many shots, only of accuracy falling off until cleaned.

Consider this... what was the condition of the muzzle crown? Take a close look at the crown during the shooting session, and especially as the accuracy falls off. Some imperfection there could be building lead, causing fliers and cleaning the mirrored bore is "inadvertently" fixing the leading. Simply re-grinding the crown some may get you a much longer shooting session between needed cleans.
 
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Airgun-hobbyist said:
@greenbeans What did you come up with regarding the barrel and accuracy falling off? The mirrored bore may not be the true issue if it's not streaking up with lead. I say this because a muzzle and or crown can be wrecked when a bore is polished wrong, and I didnt read the bore looking like crap after that many shots, only of accuracy falling off until cleaned.

Consider this... what was the condition of the muzzle crown? Take a close look at the crown during the shooting session, and especially as the accuracy falls off. Some imperfection there could be building lead, causing fliers and cleaning the mirrored bore is "inadvertently" fixing the leading. Simply re-grinding the crown some may get you a much longer shooting session between needed cleans.
Click to expand...

In a nutshell; look for lead build-up at the choke and crown. If there is some, does it correlate with groups opening up?
 
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Airgun-hobbyist said:
@greenbeans What did you come up with regarding the barrel and accuracy falling off? The mirrored bore may not be the true issue if it's not streaking up with lead. I say this because a muzzle and or crown can be wrecked when a bore is polished wrong, and I didnt read the bore looking like crap after that many shots, only of accuracy falling off until cleaned.

Consider this... what was the condition of the muzzle crown? Take a close look at the crown during the shooting session, and especially as the accuracy falls off. Some imperfection there could be building lead, causing fliers and cleaning the mirrored bore is "inadvertently" fixing the leading. Simply re-grinding the crown some may get you a much longer shooting session between needed cleans.
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I did as Scott suggested, and it helped somewhat. Now I basically just keep it clean and enjoy the accuracy for as long as it lasts. no idea what’s the real cause, all I know that it’s stacking pellets until it’s not. Then I pull a couple patches. And in all honesty, I am sending AEA 18gr and 22gr at 970-980, 25gr at around 955. With that pellet and speed combo I kind of don’t want to blame the barrel for fouling fast :) I do the same to other barrels though and they are holding up a bit better.
 
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