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Hunting
Extreme Long Range Hunting & Shooting (ELR)
My New Defensive Edge LRKM
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<blockquote data-quote="Fiftydriver" data-source="post: 859329" data-attributes="member: 10"><p>In my wildcats based on the 338 Lapua parent case, those being the 277 AM, 7mm AM, 300 AX, 338 AX and 375 AX, I use 16.0 gr GreenDot over a Win Large Pistol Primer(non magnum), then fill the case with plain yellow corn meal. Tamp the case down hard three or four times to settle the corn mean, then make a wad from 1/4 sheet of TP and press it into the case neck with a punch until everything is compressed tightly. Clean case and fire.</p><p> </p><p>For my RUM based wildcats, I use 14.0 gr Green Dot. These include the 257 AM, 6.5mm AM, 270 AM and 338 Ultra Maxx.</p><p> </p><p>For my 408 Chey Tac based wildcats, I use 22.0 gr Green Dot with the same technique as above. These include the 338 AM, 375 AM, 410 AM, 50 AT.</p><p> </p><p>I use green dot because I can get by with using less powder and still get the job done. When your forming thousands of rounds for customers every year, getting by with 10-15 grains less powder per fireformed case adds up to a decent amount of savings.</p><p> </p><p>Use large pistol primers simply because they are plenty hot to ignite the handgun powder and they will also tell me if pressure are getting a bit higher then I want as the thinner cupped handgun primers will flatted much shooter then a rifle primer. If you see ANY primer flattening, your way over pressured or your headspace is to loose.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 859329, member: 10"] In my wildcats based on the 338 Lapua parent case, those being the 277 AM, 7mm AM, 300 AX, 338 AX and 375 AX, I use 16.0 gr GreenDot over a Win Large Pistol Primer(non magnum), then fill the case with plain yellow corn meal. Tamp the case down hard three or four times to settle the corn mean, then make a wad from 1/4 sheet of TP and press it into the case neck with a punch until everything is compressed tightly. Clean case and fire. For my RUM based wildcats, I use 14.0 gr Green Dot. These include the 257 AM, 6.5mm AM, 270 AM and 338 Ultra Maxx. For my 408 Chey Tac based wildcats, I use 22.0 gr Green Dot with the same technique as above. These include the 338 AM, 375 AM, 410 AM, 50 AT. I use green dot because I can get by with using less powder and still get the job done. When your forming thousands of rounds for customers every year, getting by with 10-15 grains less powder per fireformed case adds up to a decent amount of savings. Use large pistol primers simply because they are plenty hot to ignite the handgun powder and they will also tell me if pressure are getting a bit higher then I want as the thinner cupped handgun primers will flatted much shooter then a rifle primer. If you see ANY primer flattening, your way over pressured or your headspace is to loose. [/QUOTE]
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My New Defensive Edge LRKM
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