Ruger stripping PC off

[Black Jaque Janaviac]

Now that the snow has melted I recovered a number of cast bullets I shot earlier. To my dismay they were all stripped to bare lead.

I am wondering if this is a common problem with Ruger barrels? And if there's a fix to it.

[GregLaROCHE]

It is not common for PC to strip off in any guns. Maybe you are not doing something right or there is a problem with the powder you are using. Do a smash test with a hammer on some of your boolits and see how the PC holds up. If it chips off and doesn’t stay adhered, there’s a problem.

[Recycled bullet]

Are you shooting a revolver with undersized cylinder throat diameters?

My Ruger sp101 leads ferociously with cast bullets for this reason.

If the bullets are stripping their coating you will find ferocious leading inside the gun .

Have you inspected the gun?

[Smoke4320]

Need a good bit more info to get a handle on what might be going on
Ruger What? model , caliber, barrel length, load data please

[armoredman]

PC should never just "strip off" - there is something weird going on here. And no, the very few Rugers I have fired with PC boolits have stripped off any PC.

[Black Jaque Janaviac]

The Ruger is an SR1911 Officer style 9mm.
I am using Smoke's Bacon grease. And I used both CFE Pistol & BE-86. I slugged the barrel & it is .3556" diameter at the grooves, bullets are Lee TL356-95-rf & 356-125-2r sized .357".
5.1gr CFE & 5.3 gr BE-86 with the 125 grain bullets
6.0 gr BE-86 & 5.7 gr CFE with the 95 grainers.

The rifling marks are not very crisp either. At 10 yards accuracy is ok but drops of quickly if I back up.
Cleaning/inspecting the gun afterwards there was no leading in the bore.

[Black Jaque Janaviac]

Sorry, I can't figure out why the picture shows up sideways. It looks noraml on my computer until I upload it.

[Black Jaque Janaviac]

[armoredman]

Slug that bore, something is waaaay off.

[Black Jaque Janaviac]

Slug that bore, something is waaaay off.

You mean to pound a cast bullet through it?

[Smoke4320]

From those pics of the yellow bullets the pc is still there. Friction stain has rubbed gray buts it's still there.
I agree you need a pound cast/ slug the barrel. As you indicate the rifling looks very thin. Could be a chamber to rifling choking or even just way too little rifling.

[Black Jaque Janaviac]

Ok. Slugged the bore:
The yellow one is the 356-95-rf.
The red is a.360 roundball.

[Recycled bullet]

I like to do is run an oiled patch through the barrel on a tight fitting jag and inspect it for debris with a bright light.

If there is debris in the barrel I like to wrap strands around the copper cleaning bore brush to increase effectiveness.

I use either 0000 steel wool or strands of copper wool wrapped around the brush to make a tight fit. I like to squirt synthetic auto transmission oil into the barrel before scrubbing.
It makes cleaning more effective for me. The copper wool is softer and less aggressive , confirm it with a magnet.

[shooter bob]

And the measurements are

[Black Jaque Janaviac]

Maybe this picture shows them better. The paint worn off. That is bare lead, not gray fouling you see.

[Black Jaque Janaviac]

Oh yeah. Measurements. The 95 grain RF was sized .357 before and after the widest parts of the bullet are ~0.3554"
On the roundball which was unsized (.360) and the widest parts were around 0.3556"

[Recycled bullet]

Are these bullets cast of SOWW

[Black Jaque Janaviac]

Mostly COWW. Some range scrap.

[Black Jaque Janaviac]

Any chance seating the bullet nearer the rifling would help?

[hades]

No, that's not going have have much, if any impact.

If the PC was stripped off when shooting I'd think the barrel would have gotten badly fouled.

Have you ever noticed any leading shooting your bullets?


The smash test is a great suggestion.

What's you cure process for coating bullets?