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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Attention wildcat bullet shooters!
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<blockquote data-quote="abinok" data-source="post: 65377" data-attributes="member: 16"><p>brent,</p><p> [ QUOTE ]</p><p> Measurement to the "tenth of a foot" is absolutely critical when using the acoustic target, and you don't get that without a steel tape... rangefinder won't cut it by a long shot. </p><p></p><p>[/ QUOTE ] </p><p>I used the LRF example mainly because it was mentioned in the 350gr wildcat/kahn thread.</p><p></p><p> [ QUOTE ]</p><p> If I had a few 30 cal Wildcat bullets, in a matter of minutes I could tell if they flew flatter than the 210 Berger or 210 JLK. After seeing how many MOA higher they impacted at LR, coming back to 100 yards to see how many MOA they impacted high or low compared to the JLK would tell the story. BUT, in the same amount of rounds, I could have measured the exact BC with two chrono's... and I would know how much flatter POI would be as well. 15-20 bullets and less than an hour at the range and the actual BC would be settled in my mind. </p><p> </p><p></p><p>[/ QUOTE ] </p><p></p><p>Thats about what I figured.... you would have to shoot a comprable (to the expected) bc bullet to get on paper, and that would tell you a lot just with the first shot.</p><p>You mentioned 15-20.... I was afraid you would say 50.... either way, ive decided that this is something that has to be done, but 20 or so bullets will give me more to work with on my end.</p><p></p><p> [ QUOTE ]</p><p> I've heard that the Wildcat bullt have had large swings in base to meplat length, but what worries me it that I've heard the same thing concerning bearing surface length... very inconsistant as well. If there is, the BC I'm thinking will prove very inconsistant as well, possibly MV and vertical group size too. </p><p></p><p>[/ QUOTE ] </p><p></p><p>I have heard the same in regaurds to bearing length and base to ogive length. Of all the emails ive got from this thread, no bullet offers for testing yet, but several on exactly this. 11 so far. In all fairness the reasons quoted in all but two cases for not posting here on this topic was that they felt that their sample size was not large enough to be representative.</p><p></p><p> [ QUOTE ]</p><p> I'd been waiting to hear that Richard had resolved these issues before messing with them, as the JLK is so uniform why go backwards... I wonder who makes Richard's dies and if they are of the quality that Jimmy Knox, Bob Cauterucio and others use. As many different type, caliber, weight bullets Richard manufactures, I wonder if he uses the same real expensive, high quality Nemi dies as the others do? Anyone know where he gets his dies? </p><p></p><p>[/ QUOTE ] </p><p></p><p>I had been waiting myself, but I finially decided that it was time to get some and see. Im just glad that you offered to test them with the chrony /ubbthreads/images/graemlins/grin.gif(s)</p><p>Ill let you know when they arrive.</p><p>Oh, what case were you planning on launching them from, just out of curiosity?</p></blockquote><p></p>
[QUOTE="abinok, post: 65377, member: 16"] brent, [ QUOTE ] Measurement to the "tenth of a foot" is absolutely critical when using the acoustic target, and you don't get that without a steel tape... rangefinder won't cut it by a long shot. [/ QUOTE ] I used the LRF example mainly because it was mentioned in the 350gr wildcat/kahn thread. [ QUOTE ] If I had a few 30 cal Wildcat bullets, in a matter of minutes I could tell if they flew flatter than the 210 Berger or 210 JLK. After seeing how many MOA higher they impacted at LR, coming back to 100 yards to see how many MOA they impacted high or low compared to the JLK would tell the story. BUT, in the same amount of rounds, I could have measured the exact BC with two chrono's... and I would know how much flatter POI would be as well. 15-20 bullets and less than an hour at the range and the actual BC would be settled in my mind. [/ QUOTE ] Thats about what I figured.... you would have to shoot a comprable (to the expected) bc bullet to get on paper, and that would tell you a lot just with the first shot. You mentioned 15-20.... I was afraid you would say 50.... either way, ive decided that this is something that has to be done, but 20 or so bullets will give me more to work with on my end. [ QUOTE ] I've heard that the Wildcat bullt have had large swings in base to meplat length, but what worries me it that I've heard the same thing concerning bearing surface length... very inconsistant as well. If there is, the BC I'm thinking will prove very inconsistant as well, possibly MV and vertical group size too. [/ QUOTE ] I have heard the same in regaurds to bearing length and base to ogive length. Of all the emails ive got from this thread, no bullet offers for testing yet, but several on exactly this. 11 so far. In all fairness the reasons quoted in all but two cases for not posting here on this topic was that they felt that their sample size was not large enough to be representative. [ QUOTE ] I'd been waiting to hear that Richard had resolved these issues before messing with them, as the JLK is so uniform why go backwards... I wonder who makes Richard's dies and if they are of the quality that Jimmy Knox, Bob Cauterucio and others use. As many different type, caliber, weight bullets Richard manufactures, I wonder if he uses the same real expensive, high quality Nemi dies as the others do? Anyone know where he gets his dies? [/ QUOTE ] I had been waiting myself, but I finially decided that it was time to get some and see. Im just glad that you offered to test them with the chrony [img]/ubbthreads/images/graemlins/grin.gif[/img](s) Ill let you know when they arrive. Oh, what case were you planning on launching them from, just out of curiosity? [/QUOTE]
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Attention wildcat bullet shooters!
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