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Rifles, Reloading, Optics, Equipment
Reloading
300 RUM--OAL Trouble
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<blockquote data-quote="Hired Gun" data-source="post: 405313" data-attributes="member: 1290"><p>Don't sweat the chasing the lands thing. A lot of free bore can be a wonderful thing. Set your seating depth where it feeds nice and leave it alone. Then adjust charge weight for the desired speed and go shooting. I never did find the top end for the 210 Berger in the 300 Ultra. I just quit at 3200fps. It shoots 1/2" from 2800fps on up. This is the internet so be wary of any load data. I shoot over 3 chronos at a time so I'm pretty confident of my indicated speeds. I also only use Lee Collet Dies so my stuff shoots pretty good no matter what I do. I do no other case prep other than chamfer the necks on new brass. It's a waste of time and I don't waste any money on all the little gadgets that are designed solely to seperate you from your money. </p><p></p><p>For you I would start at 94 grains of Retumbo and move up in 1 grain increments. Then dial to the exact speed you are looking for. </p><p></p><p>In the 300 Weatherby I ended up using more 7828 than what my max load was for the 200 Accubonds. I believe the 210 has less bearing surface or the freebore is so great it just doesn't build a lot of peak pressure. </p><p></p><p>I use CCI-250 primers in everything from 22-250 through 338 Lapua.</p></blockquote><p></p>
[QUOTE="Hired Gun, post: 405313, member: 1290"] Don't sweat the chasing the lands thing. A lot of free bore can be a wonderful thing. Set your seating depth where it feeds nice and leave it alone. Then adjust charge weight for the desired speed and go shooting. I never did find the top end for the 210 Berger in the 300 Ultra. I just quit at 3200fps. It shoots 1/2" from 2800fps on up. This is the internet so be wary of any load data. I shoot over 3 chronos at a time so I'm pretty confident of my indicated speeds. I also only use Lee Collet Dies so my stuff shoots pretty good no matter what I do. I do no other case prep other than chamfer the necks on new brass. It's a waste of time and I don't waste any money on all the little gadgets that are designed solely to seperate you from your money. For you I would start at 94 grains of Retumbo and move up in 1 grain increments. Then dial to the exact speed you are looking for. In the 300 Weatherby I ended up using more 7828 than what my max load was for the 200 Accubonds. I believe the 210 has less bearing surface or the freebore is so great it just doesn't build a lot of peak pressure. I use CCI-250 primers in everything from 22-250 through 338 Lapua. [/QUOTE]
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Reloading
300 RUM--OAL Trouble
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