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Custom Rifle Build Need Some Info
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<blockquote data-quote="MontanaRifleman" data-source="post: 328650" data-attributes="member: 11717"><p>Ran the numbers on that and that bullet was going about 2035 fps give or take. But based on some other reports, it seems the SMK probably expands lower than 1800 fps. </p><p> </p><p>Are you already shooting the GS bullets? I'm guessing you can do better than 3500 out of a 28" barrel. I plan to experiment with RL17 and the 177's out of my RUM. I think the burn rate out of that cartridge with that bullet may be a good combo. I did experiment with it and 180 E-Tips, and the RL 17 matched Retumbo and H1000 for velocity out of the 300 RUM (about 3400 fps) which surprised me. With the 177's weight and pressure/velocity ratio, I think RL17 may work well.</p><p> </p><p>Actually the GS bullets will shed their petals at higher velocity, but GS planned for this and implies that this is the more desired terminal effect vs staying completly intact. The remaing bullet body expands slightly to a square blunt frontal area creating a lot of tissue damage while passing through. Velocities at which the bullet sheds its petals will create a lot of destructive energy with that shape of projetile passing through flesh and bone. From the GS site...</p><p> </p><p></p><p> </p><p><span style="font-size: 10px"><span style="font-family: 'Verdana'"><a href="http://www.gsgroup.co.za/faqexpansion.html" target="_blank">GS CUSTOM BULLETS - FAQ - Expansion and Weight Retention</a></span></span></p><p> </p><p><span style="font-size: 10px"><span style="font-family: 'Verdana'">Sounds like the perfect bullet to me. I'm pumped to try some, but it's gonna hurt in the wallet.</span></span></p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 328650, member: 11717"] Ran the numbers on that and that bullet was going about 2035 fps give or take. But based on some other reports, it seems the SMK probably expands lower than 1800 fps. Are you already shooting the GS bullets? I'm guessing you can do better than 3500 out of a 28" barrel. I plan to experiment with RL17 and the 177's out of my RUM. I think the burn rate out of that cartridge with that bullet may be a good combo. I did experiment with it and 180 E-Tips, and the RL 17 matched Retumbo and H1000 for velocity out of the 300 RUM (about 3400 fps) which surprised me. With the 177's weight and pressure/velocity ratio, I think RL17 may work well. Actually the GS bullets will shed their petals at higher velocity, but GS planned for this and implies that this is the more desired terminal effect vs staying completly intact. The remaing bullet body expands slightly to a square blunt frontal area creating a lot of tissue damage while passing through. Velocities at which the bullet sheds its petals will create a lot of destructive energy with that shape of projetile passing through flesh and bone. From the GS site... [SIZE=2][FONT=Verdana][URL="http://www.gsgroup.co.za/faqexpansion.html"]GS CUSTOM BULLETS - FAQ - Expansion and Weight Retention[/URL][/FONT][/SIZE] [SIZE=2][FONT=Verdana]Sounds like the perfect bullet to me. I'm pumped to try some, but it's gonna hurt in the wallet.[/FONT][/SIZE] [/QUOTE]
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