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<blockquote data-quote="specweldtom" data-source="post: 167601" data-attributes="member: 2580"><p>Not to worry. My last post was pretty lame humor. I was jist funnin' ya'll. </p><p></p><p>I don't really give a crap who came up with either phrase, I've been using mpbr for years, just asked if there was a widely accepted window size for determining it. I was using 4"--2 up and 2 down. That works with a 200yd zero, but does limit mpbr even with a 30 x 378. On the plus side, that small of a window shortens mpbr enough to pretty much take wind drift out of consideration, particularly with the 30 by. ss7 made a lot of sense. Mpbr should be determined more by the size of the vital area of game than an arbitrary number, but as you allow a bigger window, mpbr shots get longer and you have to start doping wind. He also said that if you have time, to heck with mpbr, dial the shot in. </p><p></p><p>I got some good answers to a reasonable question.</p><p></p><p>on edit: The doctors say that I'm much better now, and soon will be able to eat oatmeal all by myself.</p><p></p><p>Thanks to all. Tom</p></blockquote><p></p>
[QUOTE="specweldtom, post: 167601, member: 2580"] Not to worry. My last post was pretty lame humor. I was jist funnin' ya'll. I don't really give a crap who came up with either phrase, I've been using mpbr for years, just asked if there was a widely accepted window size for determining it. I was using 4"--2 up and 2 down. That works with a 200yd zero, but does limit mpbr even with a 30 x 378. On the plus side, that small of a window shortens mpbr enough to pretty much take wind drift out of consideration, particularly with the 30 by. ss7 made a lot of sense. Mpbr should be determined more by the size of the vital area of game than an arbitrary number, but as you allow a bigger window, mpbr shots get longer and you have to start doping wind. He also said that if you have time, to heck with mpbr, dial the shot in. I got some good answers to a reasonable question. on edit: The doctors say that I'm much better now, and soon will be able to eat oatmeal all by myself. Thanks to all. Tom [/QUOTE]
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