M
Mike Marcelli
Guest
Gene Beggs:
Aren't you glad you bowed out now. I think you saw this one coming.
Mike
Aren't you glad you bowed out now. I think you saw this one coming.
Mike
Depends on your point of view. Bill Calfee's science is, well, his own. For science, I'll take Don Jackson, Varmint Al, Jim Borden, etc. Bill Calfee is a doer. If I wanted a competition rimfire rifle built, and he'd be willing, I wouldn't hesitate a second to have Calfee make it. I don't much care for the fact that he ignore the people who have come before him, with tuners, with flat-engagement sears, but again, he is a doer, not a historian. If he's not willing to do something, like make a centerfire rifle with a tuner, that speaks volumes.remember Bill "spilling" his procedure for "stopping" a muzzle in a post about 6 weeks ago or so...................he DID say he carried out his procedure at 42 yards. He also said about the 2 different lots of ammo being just perceivably different in velocity (I paraphrased the ammo part).
I don't think he is toying with any of you or speaking in riddles.
OK Roger,
Even with a rimfire, why 42 yards instead of 50 ?? There has to be some logical reason and how does that logic relate to centrefire ??
Surely to goodness the distance to tune the rifle is the distance that you are going to shoot it.
Bill you really need to get a new pencil - that one just ain't "figuring" none too good. I've read most all the posts on this topic and have yet to comprehend how 42 yards has anything at all "obvious" about it.With all the engineers and scientists and math folks on this forum I figured it would be obvious why I test at 42 yards, seeing as we shoot in competition at 50 and 55 yards.......or sometimes 100 yards...
Your friend, Bill Calfee
I'm wondering if one would chose 840 yards (since 42 is 84% of 50), or 952 yards so it would also be 8 yards short.If Bill tested his tuner @ 42 yards because the shooting distance is 50 yards..... wouldn't you test @ 1000 yards if thats what you normally shoot?
Rich
Well that explanation sounds logical. Provided you can safely assume that everyones scope is at the same distance above the bore, as this affects the relationship between point of aim and angle of launch.The only significance of 42 yards that I can see is that according to my ballistic program. Using Eley EPS ammo when sighted in at 50 yards the apex for the bullets flight (velocity 1035fps to 1075fps, Bills 2 lots of testing ammo) is at 34 yards, 50-34=16, 16/2=8 and 50-8=42. Thus 42 yards is half way between the apex and zero point of aim.
James
Jackie,
If you are gonna start handing out items from your shop, where does the line form??! I have a few ideas!
s.