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Rifles, Reloading, Optics, Equipment
Reloading
338 Norma Reloading Data
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<blockquote data-quote="Bryan M" data-source="post: 3028211" data-attributes="member: 11270"><p>I agree that starting at l0.050 off or even more and working up to 0.125 off in 0.025 increments works well with the badlands bd2 and sbd2 250 for the 338N. Then you can fine tune seating depth and tweak the powder once you find which of the big jumps works best. R26 and N560 gave the best velocity and case fill; i have tested both from 86 to 91 grains without any real pressure signs using lapua brass and fed215M primers. Generally the 87 to 89 grain range is where i settle with either powder, depending on the rifle and powder lot variations. Depending on barrel length (i have tested from 22 to 25 inch) and the final powder charge, velocities can range from 2850 to 3025 fps. Slower powders overfill the case a bit and/or don't produce the velocity with 250 grain coppers; the badland 250s are really long. My OAL with the bd2 is around 3.625 and a bit over 3.700 with the sbd2. These are shot in hunting rifles using a hawkins hunter mag and bottom metal. Twist is 1:9.3. There is no need to shoot a copper larger than 250 grain in the 338N as these bullets have a very high bc and good weight retention. The 338N is a very forgiving and efficient case. For hunting, there is no need to use the improved version with a 40 degree shoulder as the standard case feeds better and is "fast enough". Good shooting.</p></blockquote><p></p>
[QUOTE="Bryan M, post: 3028211, member: 11270"] I agree that starting at l0.050 off or even more and working up to 0.125 off in 0.025 increments works well with the badlands bd2 and sbd2 250 for the 338N. Then you can fine tune seating depth and tweak the powder once you find which of the big jumps works best. R26 and N560 gave the best velocity and case fill; i have tested both from 86 to 91 grains without any real pressure signs using lapua brass and fed215M primers. Generally the 87 to 89 grain range is where i settle with either powder, depending on the rifle and powder lot variations. Depending on barrel length (i have tested from 22 to 25 inch) and the final powder charge, velocities can range from 2850 to 3025 fps. Slower powders overfill the case a bit and/or don't produce the velocity with 250 grain coppers; the badland 250s are really long. My OAL with the bd2 is around 3.625 and a bit over 3.700 with the sbd2. These are shot in hunting rifles using a hawkins hunter mag and bottom metal. Twist is 1:9.3. There is no need to shoot a copper larger than 250 grain in the 338N as these bullets have a very high bc and good weight retention. The 338N is a very forgiving and efficient case. For hunting, there is no need to use the improved version with a 40 degree shoulder as the standard case feeds better and is "fast enough". Good shooting. [/QUOTE]
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Reloading
338 Norma Reloading Data
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