Bore Scope Videos, or Never Meet Your Heroes...

I've had both these rifles since the early 1990's.  A 1944 Long Branch No4 and a 1942 Lithgow No1.

Shot a metric ton of WWII corrosive blanks and some live WWII ammo through them for the first 10 plus years I had.  Put away and not shot much again until the last few years.  Against better judgement, I ran a bore scope down them recently.  Unattractive comes to mind.  Both rifles still shoot decent surplus rifle groups in recent outings using Green HXP ammo, but damn are those bores ugly to look at.  

The No4 was recently shot and shows the copper jacket stains.  The No1 has not been shot since last cleaned.

Going to try to link the video links here.  Both are shot chamber to muzzle.  My first attempts to use one of these widgets.

Long Branch

Lithgow

Either that or the M-Pro-7 system, again a copper cleaner & powder solvent.

Its water based so good for corrosive cleaning low odor & can safely be left in as long as you want. The chemistry works well without excessive scrubbing.

I patch out at night, store muzzle down & use the solvent in the next day Then add more copper cleaner. It will get everything out after a few days of this at just 5 minutes a day.

I also have a no4 with a 2 groove barrel that is heavily copper fouled. (also waiting to test this rifle and find time to clean it).

It's good to know they still shoot well! That's encouraging.

I’ve not seen fouling that looks quite like that, might be from shooting blanks?    I’m curious what cleaning method you use (solvent and type of jag). 

That borescope video was taken after cleaning your No. 1 rifle?  

I found it’s quite difficult to keep barrels free of all fouling after routine cleaning. It doesn’t really affect shooting unless the copper starts building up. The real problem is if your rifle is stored in conditions of 50% and higher humidity, then pitting takes hold, that makes the bore rough and strips even more copper off the jackets.  But some rifles will still shoot well with very rough bores, up to the point the jackets get damaged enough to cause the bullets to “blow up” on the way to the target. My 1903 Springfield A3 two groove is one such barrel.  It won’t shoot thin jacketed bullets (like the Speer TNT), they disintegrate at about 50 yds from the muzzle. 

I’ve only found three products that really do work.  Bore Tech Eliminator, Bore Tech C4 Carbon remover and JB Bore Paste.  I’m sure there are others, but that’s what worked for me.