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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What is the most overbore cartridge YOU HAVE USED?
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<blockquote data-quote="Lefty7mmstw" data-source="post: 3077781" data-attributes="member: 48043"><p>I don't know about the 300win being a slouch. I'm running a 165 Hdy interlock to 3280 fps with my rifle and I've seen 3150 fps with 180's easily with slow enough powders. My brother's #1 300win was up to 3250 fps with a heavy dose of Retumbo and a 180 when he had it. We are working with v570 and 200 grain pills right now but I haven't had a chrono on either (my Browning or my son's Savage Impulse) rifle yet with it. The Savage tossed a .4" group at 100 with 200eld-x pills and v570 so I loaded 50 to wring it out a bit.</p><p></p><p>I'm loading for a buddy's 300roy in a crapumark rifle; with factory ammo it was a shotgun. We started stuffing heavier pills in it to fill the throat and accuracy came in. With a 220 Sierra hpbt or 225 Hdy hpbt at 2700 fps with 7828 it's good for 1 to 1.5" at 200 depending on conditions. We've tried for a bit more, but accuracy goes to pot.</p><p>Both my 300 rum rifles are running either a 180 at 3300 fps or a 225 Hdy hpbt at 3,000 fps. There's a bit more on tap, but they shoot well there.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 3077781, member: 48043"] I don't know about the 300win being a slouch. I'm running a 165 Hdy interlock to 3280 fps with my rifle and I've seen 3150 fps with 180's easily with slow enough powders. My brother's #1 300win was up to 3250 fps with a heavy dose of Retumbo and a 180 when he had it. We are working with v570 and 200 grain pills right now but I haven't had a chrono on either (my Browning or my son's Savage Impulse) rifle yet with it. The Savage tossed a .4" group at 100 with 200eld-x pills and v570 so I loaded 50 to wring it out a bit. I'm loading for a buddy's 300roy in a crapumark rifle; with factory ammo it was a shotgun. We started stuffing heavier pills in it to fill the throat and accuracy came in. With a 220 Sierra hpbt or 225 Hdy hpbt at 2700 fps with 7828 it's good for 1 to 1.5" at 200 depending on conditions. We've tried for a bit more, but accuracy goes to pot. Both my 300 rum rifles are running either a 180 at 3300 fps or a 225 Hdy hpbt at 3,000 fps. There's a bit more on tap, but they shoot well there. [/QUOTE]
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What is the most overbore cartridge YOU HAVE USED?
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