I’m looking for some input on load data for the .338 Norma Mag. I’m running lapua brass, Berger 300 grain hybrid OTM Tactical projectiles with Vihtavuori N570 powder. Any feedback at all would be great, I’m running a Barrett MK-22.
- Thread starter Crazybaby13
- Start date
338 Norma
midgetoramaXGunny Sergeant Rating: 3.1/5 this site 864 posts this site 338 Norma Loads 10/20/2014 Last edited 10/21/2014 by midgetorama I am shooting a 9.5 twist Bartlein that finishes at 26". With a 300 grain SMK I am getting slight ejector marks with 85.0 grains of IMR 7828 SSC and a CCI250...
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Thank you. I read somewhere that the sweet spot was about 88 grains for optimal velocities, standard deviation and extreme spread
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