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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6mm vs the .243 AI
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<blockquote data-quote="Trickymissfit" data-source="post: 1080625" data-attributes="member: 25383"><p>was before I started keeping a log book, and simply wrote on the target. I want to say 4064, but doesn't seem right at all. Probably IMR 4350 or 4831. I did shoot some 3100 as well. Loads were starting to get finicky and this shows me the case was moving into overbore. I do know I did some experimenting with 4064, but think it was with 87 grain bullets. Rock steady in the low 3300fps range. I stopped using it because the barrel got hot enough to fry an egg on it! Look for some of those old .257 cases (Winchester). They are thinner and hold a little more powder (maybe 1960ish)</p><p> </p><p>I did run across a folder of 6mm targets I shot a couple months back, and most all groups were sub 3/8th". There was standard 6mm and the improved. Not much data on them except for weather and wind. Groups were measured all wrong I noticed, but all were five shot. There were also several that had me trying to shoot Berger 88's, and of course they wouldn't group even slightly. Then I ran across one target with 69 grain Bergers, but you couldn't measure it as they look like they blew up going thru the card board!</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 1080625, member: 25383"] was before I started keeping a log book, and simply wrote on the target. I want to say 4064, but doesn't seem right at all. Probably IMR 4350 or 4831. I did shoot some 3100 as well. Loads were starting to get finicky and this shows me the case was moving into overbore. I do know I did some experimenting with 4064, but think it was with 87 grain bullets. Rock steady in the low 3300fps range. I stopped using it because the barrel got hot enough to fry an egg on it! Look for some of those old .257 cases (Winchester). They are thinner and hold a little more powder (maybe 1960ish) I did run across a folder of 6mm targets I shot a couple months back, and most all groups were sub 3/8th". There was standard 6mm and the improved. Not much data on them except for weather and wind. Groups were measured all wrong I noticed, but all were five shot. There were also several that had me trying to shoot Berger 88's, and of course they wouldn't group even slightly. Then I ran across one target with 69 grain Bergers, but you couldn't measure it as they look like they blew up going thru the card board! gary [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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6mm vs the .243 AI
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