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Sendero, 300 RUM load w/ 210 Berger?

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Unread 12-25-2012, 07:53 PM
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Re: Sendero, 300 RUM load w/ 210 Berger?

Originally Posted by Lefty7mmstw View Post
8 moa at 1000?? or 8" at 1000.... 1 moa would be around 10" at 1000.
sorry but I thought I'd ask.

We've been using 180,190, and 225 hornady with either rl25, rl33, or rl50 here. 180's at 3300 fps, 190's at 3200 fps, and 225's at 3K fps at 1/2 moa (1") at 200. The 300 rum simply doesn't care what you feed it and both my bdl lh and my brother's sendero shoot about the same.
I meant 8'' @ 1000 .
I went to shoot at 1000 3 different times and I shot 7 1/4 '' 3 shot group then next time out I shot 7 3/8 '' 3 shot group and lastly I shot 8'' 3 shot group.

I run the Extended box so I try and seat them as far as I can and then back off until I get good grouping.
"Molon Labe"
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Unread 12-26-2012, 01:16 AM
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Join Date: May 2008
Location: South of Canada and North of Wyoming
Posts: 6,068
Re: Sendero, 300 RUM load w/ 210 Berger?

Originally Posted by BCMAG2 View Post
Hello. I'm new here, so bear with me.

I have a Sendero in 300 RUM. I've been shooting 200 grain accubonds with disappointing groups (1") no matter what I do in terms of powder charge or COAL. I'm thinking of giving the Berger 210 a try. Does anyone have the perfect load worked up for the Berger 210 in their Sendero 300 RUM that they'd be willing to share? Would prefer to stay with the standard 3.60" COAL if possible so the factory magazine well will work.
I worked up a good load with the 210's in my Sendero with Retumbo, however the COAL was 3.865 just touching the lands. 93 gr, 3130 fps and about .5 to .75 MOA

Tried the 200 AB's as well and they were the least accurate in my rifle of the 5 bullet types I tried. About 1 MAO.

180 E-Tips were very good with fairly consistent sub .5 MOA groups.

Best were Cutting Edge 180's (C32).

Bergers can be quite sensitive to seating depth/jump. You might want to check out the Berger sticky in the Reloading forum....

Getting the Best Precision and Accuracy from Berger VLD bullets in Your Rifle

Hope that helps

P.S. It obviously didn't fit into the mag but I was able to put one down with tip just above mag box for second shot follow up.
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