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About LinkBacksThis question relates to a new batch of .308 Norma Magnum brass. My previous batches have varied 220-223 grains (virgin unfired unprimed) but the latest batch varies 220-225 grains.
Q: Is this variance likely to significantly affect pressures and grouping with my existing load?
(180gn sgk/cci250 / IMR4831 / 70.7 gn = 2900 fps / < .75moa grp)
Note: This cartridge is very similar to 300Win mag.
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16-07-2020, 02:03 PM #1Member
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Minor cartridge weight variation question
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