P-10S barrel--might be time...

[Joe L]

Maybe clean it early this year?   

Might ruin it.
Joe

[viking499]

Clean it the same time you clean the Kadet.

[KennyE]

Ya never know. The next round or two might just push all that junk right out.

[Joe L]

I'm experimenting with a new automated focus stacking technique.  I tried the Kadet barrel first and I couldn't light it well enough due to the small bore diameter and length of the barrel.  I think a Kahr PM-40 barrel will be easier than this P-10S barrel but I need to give it one more try.  I didn't get the camera lens and barrel centerlines lined up well enough here in this composite shot.

I'm going to check the bore with a borescope, but this barrel isn't very dirty.  What I hope to do is  before and after photos, or rather a before running a dust removal patch, after dry patch, then after solvent/bore brush/patches cleaning.  Just to see if my photo technique is usable or not.  The barrel is fine as it is.  The next shot will remove the loose material, and replace that with new particulates.   

Joe

[Joe L]

Here is a better photo from today.  I used skylight instead of a bore light and worked a little harder at lining up the camera and the P-10S barrel. 



This is fun. 

Joe

[KennyE]

Here is a better photo from today.  I used skylight instead of a bore light and worked a little harder at lining up the camera and the P-10S barrel. 



This is fun. 

Joe

What a great shot! Or, photo. Love the detail. Waiting for the "cleaned" barrel shot. Thats assuming you ever do clean it ... 

[Joe L]

Here is the best I have been able to do so far today.  This is after a 5 minute clean job.  Looks like I need to work at the cleaning job a little more.  Also the photography, as there are some artifacts in this shot. 

Joe

[Joe L]

Changed my technique a little bit to accommodate the 60mm lens focal length.  This worked well, in my opinion.
 
 

[Gunnerdad80]

Changed my technique a little bit to accommodate the 60mm lens focal length.  This worked well, in my opinion.
 
 

Dig the detail. Nice pics.

[Joe L]

Here is a side view of the setup used.  The lens is a 60mm, a little long for this task.  The camera is an Olympus E-M5iii.

This was an experiment.  The barrel was fine.  Really.  That's my story and I'm sticking to it.  Gun probably won't shoot less than 12" at 100 yards now.
Joe

[Wobbly]

Joe -
As I remember, you only shoot factory ammo. Right ?

If so, that's a fairly clean barrel. You can pass on cleaning it this year. 

[Joe L]

Thanks, Wobbly.

Yes, factory ammo, Atlanta Arms 115 JHP and UMC 115 FMJ.  The last photo was after literally a couple of passes with a bore brush and some Kroil, followed by maybe 10 dry patches.  To be honest, I don't know what a fouled 9mm barrel really looks like. 

The "before" photos were maybe 100 rounds after shooting the little pistol so well at 100 yards that I really didn't want to touch it.  I remember using an (inexpensive) borescope on my P-09 barrel after shooting a few 6" groups at 100 yards and it had a lot of particulates and debris but no lead fouling that I could see.  I didn't touch it for another 2k rounds or so.  Never saw any degradation. 

The .22 pistol has to be kept clean, at least at the chamber and leede area.  If the leede starts getting some carbon buildup, the accuracy drops off enough to be noticeable.  For example, if the zero appears to have drifted off, yet my grip is good, I don't adjust the sight, I clean the barrel, on the Kadet.  That seems to fix the issue, 90% of the time.

I have moved from the desert to a much more humid climate.  I may have to clean and oil the centerfire pistols more often now just to prevent corrosion from combustion products, not sure yet.  So far, I don't appear to have any problems.  I leave the guns bagged when coming inside from a cold outdoor range and let them warm up before exposing them to a humid environment where water would condense on them, just like I do for my camera gear. 

Joe

[Joe L]

I think the brown and green and gray color bands in the middle of the barrel length are a reflection of the grass, driveway just to the left and downrange of the barrel.  I'm slow, took me a while to figure it out.  At first, I thought it was some creation of the stacking program, but no, just a reflection, which is a simple explanation and perfectly logical.  I think.  So even the CZ carry pistol bore does, indeed, have a mirror finish!  If it is cleaned up a little.

Joe

[tx-oldtimer]

A pass with JB bore compound will make it bright and shiny plus easier to clean next time.

[Joe L]

Yep, I've used the JB Bore compound on the Kadet .22 barrel often.  I don't think it is necessary yet on these new CZ barrels without many rounds through them.  I'll check my P-09 barrel this week.  And a new Kart 1911 barrel that I haven't put 50 rounds through yet.    I do use the JB Bore compound on the .22 quite often, usually with Kroil. 
Joe