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Rifles, Reloading, Optics, Equipment
Reloading
338 Norma Reloading Data
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<blockquote data-quote="sable tireur" data-source="post: 1447620" data-attributes="member: 27307"><p>After using up 3 brand new barrels and way too much brass along with a huge supply of Berger 300 grain bullets powered by every powder deemed suitable for this cartridge, I have come to the conclusion that the 300 Berger is simply unsuited to this cartridge and the case capacity by overall length. The velocities generated and the accuracy achieved in all of the barrels and chambers were just plain underwhelming. I used 4 different reamers for throat and freebore on two more barrels reaching the same conclusion. </p><p></p><p>I switched to the 250 grain bullets from 3 of the top manufacturers and got great velocities/energy and the best small groups to date with many averaging 1/2" at 100 yards for 5 shots. This data was achieved using several of the powders already discussed with Re-25/26, H-1000, Norma MRP and VVN-560 leading the way. Nothing was difficult in working up these loads as as opposed to tearing my hair out attempting the same thing with the 300 grain Match bullets. </p><p></p><p>I will start a new sequence using a larger cartridge capacity for the 300 grain bullets.</p></blockquote><p></p>
[QUOTE="sable tireur, post: 1447620, member: 27307"] After using up 3 brand new barrels and way too much brass along with a huge supply of Berger 300 grain bullets powered by every powder deemed suitable for this cartridge, I have come to the conclusion that the 300 Berger is simply unsuited to this cartridge and the case capacity by overall length. The velocities generated and the accuracy achieved in all of the barrels and chambers were just plain underwhelming. I used 4 different reamers for throat and freebore on two more barrels reaching the same conclusion. I switched to the 250 grain bullets from 3 of the top manufacturers and got great velocities/energy and the best small groups to date with many averaging 1/2" at 100 yards for 5 shots. This data was achieved using several of the powders already discussed with Re-25/26, H-1000, Norma MRP and VVN-560 leading the way. Nothing was difficult in working up these loads as as opposed to tearing my hair out attempting the same thing with the 300 grain Match bullets. I will start a new sequence using a larger cartridge capacity for the 300 grain bullets. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
338 Norma Reloading Data
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