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Rifles, Reloading, Optics, Equipment
Reloading
Help with 300 RUM
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<blockquote data-quote="Wachsmann" data-source="post: 968352" data-attributes="member: 10429"><p><a href="http://www.longrangehunting.com/forums/members/aaroncarp-80044/" target="_blank">aaroncarp</a>,</p><p> </p><p>I started with the 210 and found they were somewhat fussy. I got my best group about .075 off the lans. with 91.5 grains of retumbo. It was about 3050 to 3040 fps.. I had to bump up to about 93 grains to get 3100fps which is over max book charge. I was starting to see ejector marks at 92.7 and at 93 I knoticed a very slight difference in bolt lift on a fired case. But my 91.3 to .5 shot the best. I also use federal magnum match primers. Even then it was at best 1/2 inch to 3/4 inch groups. I went to the 230 OTM bergers and 89.4 grains of retumbo at .75 off the lans, same primer....It shot a .3 inch group at 200 yrds. My gun is a sendero, with the trigger adjusted, beaded, and has a great muzzle brake on it. The muzzle brake makes a world of difference. Also I would not reload my brass past 5 times and this seem to be pushing it. I had a case separation or case breach at the 6th reload. Only on 1 but it was enough to say 5 is max on these cases. Remington brass. Also I full length resize. probably need to start just neck sizing. None of the rounds I loaded to fit the mag gave me the best accuracy. So I use mine like a single shot but eventually I get the extended mag box.</p></blockquote><p></p>
[QUOTE="Wachsmann, post: 968352, member: 10429"] [URL="http://www.longrangehunting.com/forums/members/aaroncarp-80044/"]aaroncarp[/URL], I started with the 210 and found they were somewhat fussy. I got my best group about .075 off the lans. with 91.5 grains of retumbo. It was about 3050 to 3040 fps.. I had to bump up to about 93 grains to get 3100fps which is over max book charge. I was starting to see ejector marks at 92.7 and at 93 I knoticed a very slight difference in bolt lift on a fired case. But my 91.3 to .5 shot the best. I also use federal magnum match primers. Even then it was at best 1/2 inch to 3/4 inch groups. I went to the 230 OTM bergers and 89.4 grains of retumbo at .75 off the lans, same primer....It shot a .3 inch group at 200 yrds. My gun is a sendero, with the trigger adjusted, beaded, and has a great muzzle brake on it. The muzzle brake makes a world of difference. Also I would not reload my brass past 5 times and this seem to be pushing it. I had a case separation or case breach at the 6th reload. Only on 1 but it was enough to say 5 is max on these cases. Remington brass. Also I full length resize. probably need to start just neck sizing. None of the rounds I loaded to fit the mag gave me the best accuracy. So I use mine like a single shot but eventually I get the extended mag box. [/QUOTE]
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Reloading
Help with 300 RUM
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