polishing a barrel?

There was such a shooting test done in Precision Shooting about 1989 I believe.

And sandblasted surface was the best for radiating heat.

He also did the "barrel scan" stuff I think .


This should be an interesting article to find and re read but not today - I am relaxing .

Tomorrow I will look for this in the file boxes in the basement.

Merry Christmas every one.

Glenn

.
 
Blasted and cerakote holds up well to bbl changing. Bake it on hard.

Emmissivity of surfaces varies with materials and finishes moreover color. I.e. Matte finishes transfer heat better than glossy.

All finishes tend to insulate, so the real question is ....does the insulation negate the benefits?

Probably.

A blasted unfinished bbl likely cannot be improved.
 
I do not want a polished barrel because I do not want the reflection to be an issue.

Good Shooting,

Jason Lumetta
ExtremeGunCare
 
4Mesh said:
Geez John,

I had an interesting thought when I read that. According to the original light gun rules of the PA Benchrest, that barrel would have been illegal because of the straight taper rule. Same currently goes for point blank BR here in either of the pbbr rulesets for HV or LV, (unless I'm mistaken).
Click to expand...

The taper rules say the barrel has to be within the quoted taper. It can be any shape and a reverse taper if it fits within the dimensions stated. You can twist it into a helix if you want as long as it fits within the stated taper.
Butch
 
Somehow I was thinking the barrel shape was more or less fixed in both disciplines (short and 1K). The old 1K rules specifically prohibited something like a reverse taper. Though I never wanted to play games with the barrel shape in short range, I guess I was mistakenly under the impression that there was some standard being followed. My first 2 barrels for pb br were given to me so I didn't bother with reading too far into what was allowed. Thanks though for the headsup Butch.
 
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