Shiloh Rifle Forums

desert deuce wrote: ↑Fri Oct 04, 2024 10:26 am Really: Eh, I will just send DD my barrel and he can have fun cleaning it.

Send the complete rifle and 60 rounds of fireformed brass, the barrel cannot be tested alone and no I won't mount it on an alternative action.

TexasMac wrote: ↑Wed Oct 09, 2024 10:14 pm Based on all the comments I doubt the following is the root cause of the leading but I'll toss it out there just in case. I ran into a terrible time with leading in a Browning .40-65. I bore wipe with NAPA water soluble oil & water (1:10 solution oil:water). I shot in several matches with mediocre to poor scores as I struggled to figure out the cause of the leading.

I considered the most common causes including the bullet diameter being too small, allowing hot gasses to blow by, i.e. gas cutting prior to the bullet bumping up (obturating) to fill the chamber and throat. Another is the alloy could be too hard preventing the bullet from obturating sufficiently or quickly enough. Other possibilities include inadequate lube or the cartridge overall length was too short (bullet seated too deep) allowing blow by. But none of the above made sense when considering past successful shooting results with the same bullet cast from the same alloy, with the same lube and reloaded the same. And the cartridge is certainly not too short since the 1st driving contacted the leade. Plus, I wipe between shots which would compensate to some extent for inadequate lube. I even changed bullets and reduced the velocity but the leading persisted.

Nothing was obvious until I overheard a discussion between two shooters. One guy mentioned that if the wiping patches left too much solution in the bore, leading would result. The comment struck a chord. I was shooting in the Texas State Match when the problem cropped up. Prior to day 2 of the match, after soaking the wiping patches, I’d been squeezing them out until most of the liquid was removed, leaving them lightly damp. When preparing for the 2nd day of the match I’d decided to leave the patches wetter to better clean and lube the bore, and continued to use them in the same condition for subsequent matches.

They were wet enough that some of the solution would leak into the action when inserting the patch into the chamber. Following the overheard conversation the patches were squeezed out good but left damp for the next match. That did the trick; there were no signs of leading with the exception of a few tiny flakes. Since then, I’ve shot in scores of matches with the same outcome. Who would have thought…? Too dry of a wiping patch can result in poor accuracy due to burnt powder and lube fouling remaining in the bore. Apparently too wet will have similar results due to leading, another form of bore fouling.

Wayne

steveu834 wrote: ↑Thu Oct 17, 2024 8:24 pmATF,

bpcr shooter wrote: ↑Fri Oct 18, 2024 12:02 pm

steveu834 wrote: ↑Thu Oct 17, 2024 8:24 pmATF,

Its thin, easy to see how much is on the patch, pretty cheap, has metal protectant in it, has cleaners in it. Also working on a better "fouling" remover. trying to keep it so it can be had off the shelf...

bpcr shooter wrote: ↑Mon Oct 21, 2024 5:38 am just be warned that oil products and BP dont mix well. Thats why I will only use a few drops on a dry patch