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Rifles, Reloading, Optics, Equipment
Reloading
Chrono Question
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<blockquote data-quote="J E Custom" data-source="post: 162113" data-attributes="member: 2736"><p><strong>chrono</strong></p><p></p><p>If you have a chronograph with a proof channel it will tell</p><p>you what your loss per/foot is ,If not I would guess at your velocity</p><p>your only losing about 8 to 10 ft/sec.</p><p></p><p>I had to build a blast shield for mine because the shock wave would</p><p>cause an error in velocities on some of the big bores unless I </p><p>moved the screens way out.</p><p></p><p>The blast shield is nothing more than a 2x4 frame with a piece of</p><p>plywood 1/2x3'x3' with a 3''x6'' vertical slot at the matching height</p><p>of the screens.</p><p></p><p>The down side is more noise.</p><p></p><p>Placed 3 or 4 feet in front of the muzzle,this allows you to set the </p><p>screens 5 feet from the muzzel.</p><p></p><p>The only other reason for setting the screens close is that it gives</p><p>you a larger window to shoot through.(Multiple targets with out</p><p>moving the screens.</p><p></p><p>I hope this helped</p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 162113, member: 2736"] [b]chrono[/b] If you have a chronograph with a proof channel it will tell you what your loss per/foot is ,If not I would guess at your velocity your only losing about 8 to 10 ft/sec. I had to build a blast shield for mine because the shock wave would cause an error in velocities on some of the big bores unless I moved the screens way out. The blast shield is nothing more than a 2x4 frame with a piece of plywood 1/2x3'x3' with a 3''x6'' vertical slot at the matching height of the screens. The down side is more noise. Placed 3 or 4 feet in front of the muzzle,this allows you to set the screens 5 feet from the muzzel. The only other reason for setting the screens close is that it gives you a larger window to shoot through.(Multiple targets with out moving the screens. I hope this helped J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Chrono Question
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