Cold Bore Flyers

Japhy

The MKII 22 seems particularly prone to cold bore flyers.  Clean the bore with a brush and Breakfree CLP then dry patches until they come out clean.  My first 5 or 6 look like a shotgun pattern then it settles to sub 2 in handheld at 15yds. Ammo is CCI standard velocity lead 40gr.  Is it me? or something I am missing?

Zee

It’s called, fouling your bore. 

Zee

 Clean………Foul. 

Life’s good. 

Zee

Dirty bores = Bad
Clean Bores = Bad

Fouled/Seasoned Bores = Good

Diver43

Like @Zee said, fouled bore is good 
My MKii does best with mini mags

Wambli Ska

Zee said:

It’s called, fouling your bore. 

This.  After you clean the bore it takes a few shots for the leftover oils etc to “burn off” and for your bore to fill all the microscopic fissures and imperfections with metal from your bullets.  Then you have a period of good accuracy that will start degrading when the bore gets “dirty”.  How many rounds are in each stage depends on the gun.

Wambli Ska

BTW stop cleaning the bores of your .22s.  A quick run with a dry bore snake every once in a blue moon is good enough.

JunkCollector

My 22's only get the bore cleaned if they start acting up.

I'll clean other areas but the bore gets left alone.

Bigslug

Lack of consistent bore condition.

The studs in Olympic smallbore will only clean their barrels if their targets give them a reason, and that ain't often.  The priming isn't corrosive, and the bullets are laying down a wax coating with every shot - really no reason to.

A LOT of us have been programmed to obsessively bore clean by our grandfather's era of corrosive ammo and the rotted out milsurps we had to pick through in our youth to find the keepers.  While it's good to know how to deal with it in the event a case of cheap British MKVII shows up, it's also worth knowing that process doesn't need to be applied to EVERYTHING.  For .22's, rust on the outside is the bigger problem.

GrapeApe

Rimfire ammo leaves traces of bullet lube. You remove it when you clean the bore. You have to get a consistent layer back in there before consistency returns.

Even changing brands of ammo can mean shooting 5-10 rounds to lay down a coat of the new ammo's lube before the barrel will settle down. 

Jayhawker

Yep...what everybody said.....

Wambli Ska

GrapeApe said:

Rimfire ammo leaves traces of bullet lube. You remove it when you clean the bore. You have to get a consistent layer back in there before consistency returns.

Even changing brands of ammo can mean shooting 5-10 rounds to lay down a coat of the new ammo's lube before the barrel will settle down. 

This is true.  Which makes for a big PIA when you’re trying to find a good brand/load/lot for a new (or new to you) rifle.  I’ve had the first few shots after switching ammo look like a pattern only to have the gun start laying down a great groups by shot number 5-10…. 

Japhy

I pickup some (new to me) tribal knowledge every time I'm here. so far its all been dead on.

no more 22 bore washing!

Wambli Ska

Japhy said:

I pickup some (new to me) tribal knowledge every time I'm here. so far its all been dead on.

no more 22 bore washing!

👍👍

jbp-ohio

I don't put a lot of rounds thru my .22's. Maybe 200-300 a year? Don't even remember the last time I cleaned a bore.

Japhy

This is the first 10 out of the Ruger MKII this morning.  Offhand 10yds, irons, zeroed at 25yds so I'm not going to make any elevation change.  no bore cleaning!  a definite improvement. This confirms the earlier advice

GrapeApe

Looking good

Wambli Ska

Japhy said:

This is the first 10 out of the Ruger MKII this morning.  Offhand 10yds, irons, zeroed at 25yds so I'm not going to make any elevation change.  no bore cleaning!  a definite improvement. This confirms the earlier advice

Good shooting 👍

JunkCollector

Excellent.....and don't be surprised if it gets even better.

Wambli Ska

JunkCollector said:

Excellent.....and don't be surprised if it gets even better.

Probably.  While I love all my .22 pistols when I really want to teach someone about accuracy the Mark 1s come out.

JunkCollector

Wambli Ska said:

JunkCollector said:

Excellent.....and don't be surprised if it gets even better.

Probably.  While I love all my .22 pistols when I really want to teach someone about accuracy the Mark 1s come out.

That's only because you don't have Highstandards 

Wambli Ska

JunkCollector said:

Wambli Ska said:

JunkCollector said:

Excellent.....and don't be surprised if it gets even better.

Probably.  While I love all my .22 pistols when I really want to teach someone about accuracy the Mark 1s come out.

That's only because you don't have Highstandards 

Yeah one of those is on my mental list. 👍

Jayhawker

Wambli Ska said:

JunkCollector said:

Wambli Ska said:

JunkCollector said:

Excellent.....and don't be surprised if it gets even better.

Probably.  While I love all my .22 pistols when I really want to teach someone about accuracy the Mark 1s come out.

That's only because you don't have Highstandards 

Yeah one of those is on my mental list. 👍

Yes...a High Standard HDM would be desireable..
The Supermatic was a good piece of kit too...