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I found this interesting: Article
A Contemporary Look At Barrel Leading and Related Sixgun Issues
by Fermin Garza January 4th, 2011
I found it a little long winded at first, but bear with the author. He starts to get to the point about 1/3 through.
Mark
EDIT: I thought I'd better edit this in case Mr. Garza is a board member here as he is on another board I bloviate on.
It is a very informative article, and had several very good pictures to illustrate the barrel and cylinder measuring methods, impregnating the bullets with grit, and loading your cartridges. Highly Recommended.
There! Fixed.
Last edited by markinalpine on Wed Jan 05, 2011 3:47 pm, edited 1 time in total.
Any way you sell it,
No matter how you spell it,
When you start to smell it,
BO stinks.
Thanks for that.
I keep procrastinating about fire lapping my 1894 357, and when I read about somebody shooting pistol groups off hand better than I can shoot the rifle off the bench I wonder what I'm waiting for.
Bob
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You have got to love democracy-
It lets you choose who your dictator is going to be.
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You guys need to realize Fermin Garza is not your normal shooter. He's probably shot more handgun rounds than I have combined in all my firearms. Fermin, you need to show these guys a pic of your Harton #5. I miss the old single action forum.
A standard micrometer may or may not show an object is out of round, so don't depend on it to do so.
Never drop a pin gauge down a barrel. The pin is hardened far in excess of the barrel and if there is a swelling the pin will strike the taper of the swelling and gouge the rifling. He did this and ruined a barrel, he even says so. You clamp the barrel in a vise at a small angle and then gently, carefully and slowly push the pin up the bore. If you start to feel any resistance STOP instantly and no harm done.
You can't measure closely using a pin gauge. A .500 pin will not enter a .500 hole, at least not without a hammer. Depending on the two sufaces degree of finish and how round they both are is how much clearence is needed to get a pin into a hole. Thinking that a minus .500 gauge will go into a .500 hole will lead to trouble in the real world.
Catshooter, if you are going to quote me, please do it more accurately. I didn't say I ruined a barrel, I said I damaged a barrel. I damaged it with a allen wrench not the pin gauge. I was using the allen wrench to tap the pin guage out of the rifling and dinked the throat area. The barrel isnt ruined, but will need to be set back. The idea was to encourage guys to use caution as some barrels are indeed quite soft.
I am NOT using the pin gauges to MEASURE the barrel. Simply as a quick way to locate high spots, and yes, you have to be careful with them.
Additionally, to be more clear, most guys already own a dial caliper, but a micrometer is much more accurate to measure with.
Good article, thanks for bringing it to our attention Mark.
