John Kielly
Shari's fan club
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Barrel Indexing,,
- Thread starter Gene Beggs
- Start date
Gene Beggs
Active member
Hovis, the only thing that comes to mind is that you are more likely to damage a land than a groove with the cleaning rod.
Gene Beggs
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Vibe
Guest
Did you get the E-mail?
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IndianaJames
Guest
I'll take a stab at it...the throat erosion is the worst at 6 o'clock, and the land is more susceptable to this erosion.
Jim
Tim Oltersdorf
Active member
It may be of interest to this thread that there is a medical condition called Peyronie's disease that has symptoms similar to these bent barrels. No mention is made of indexing in the horizontal or vertical as being best. Tim
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Vibe
Guest
There doesn't seem to be much hope of hitting a target 50 yards away with it either. In any orientation.
Gene Beggs
Active member
Hovis
My guess on the groove at 6 O;clock would be for cleaning purposes.
On the electronic tuning of cannon barrels I think Bill Calfee is right up the street from a place that does that kind of thing.I don't know if he visits often but I did get an e-mail about it once
.
Lynn
My guess on the groove at 6 O;clock would be for cleaning purposes.
On the electronic tuning of cannon barrels I think Bill Calfee is right up the street from a place that does that kind of thing.I don't know if he visits often but I did get an e-mail about it once
.Lynn
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mks
Guest
OK, how about this: If the bullet is not jammed, then it sits more stably supported by the edges of two lands, but may rock left and right on top of a land at 6 oclock. Are we getting close?
Cheers,
Keith
Gene Beggs
Active member
Suspense is killing me
Hovis, you've held out on us long enough. Are we even close? Come on man; you gotta' tell us soon. I can't sleep.
Hovis, you've held out on us long enough.
Are we even close? Come on man; you gotta' tell us soon. I can't sleep.
D
Don Stith
Guest
Hovis
Is the 6 o'clock groove at the muzzle? I assume these barrels have a twist rate to the rifling so the 6 o'clock location is not likely to be at both breech and muzzle unless the length and rate match up just right. In doing a study of 1792 Contract rifles made in Lancater PA, I observed that most of them had the same 6 o'clock groove at the muzzle. I have no clue why, but the army must have decided that was the right thing at least two hundred years ago.
Sorry, haven't been on the site much. I really didn't think the 6 o'clock groove thing would bring up much interest but I was wrong. And it's my fault for not saying whether or not it was the breech or muzzle but my original post was about the muzzle. And Lynn was right, it's abou the cleaning. Cleaning rods wear the muzzle less if a groove is at 6 o'clock.
Lynn, I haven't gotten down to Calfee's for a while. I know him but not real well. The place your talking about, is no longer involved. It's name is Jefferson Proving Grounds. I've been trying to find out if the goverment has de-classified the frequency with no luck, but I doubt if they have. That of course doesn't mean that it isn't available. When I asked whether or not this would apply to rifle barrels, they seen no reason why it wouldn't. However, I don't know if it would be measurable when applying it to BR.
I do anticipate, in the ten years, bullet design is going to change. Again, not neccessarily for BR but for the shooting industry in general. Some very interesting and successful testing has been by the goverment, as it pertains to small arms ammunition and bullet design.
Hovis
Lynn, I haven't gotten down to Calfee's for a while. I know him but not real well. The place your talking about, is no longer involved. It's name is Jefferson Proving Grounds. I've been trying to find out if the goverment has de-classified the frequency with no luck, but I doubt if they have. That of course doesn't mean that it isn't available. When I asked whether or not this would apply to rifle barrels, they seen no reason why it wouldn't. However, I don't know if it would be measurable when applying it to BR.
I do anticipate, in the ten years, bullet design is going to change. Again, not neccessarily for BR but for the shooting industry in general. Some very interesting and successful testing has been by the goverment, as it pertains to small arms ammunition and bullet design.
Hovis
Gene Beggs
Active member
Thanks Hovis. Now maybe I can sleep.