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.30 Gibbs
MIKE WISKEY
Member, Moderator Posts: 9,972 ******
does anybody have current loading data for this? I've got P.O. Ackley's data but that's from the 1960's, I'd like to use some of the 'newer' powders.
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http://www.loaddata.com/members/search_detail.cfm?MetallicID=907
http://ammoguide.com/cgi-bin/ai.cgi?sn=BiqAwMJOuk&catid=444
Best, Alan
Yes, I know I'm late to the party but SHOT Show preparations have been more intense this year.
Larger diameter hole (caliber) with heavier bullets is usually an indication for using faster powders. Now I'm not sure what 'newer' powders you are referring to but when I played with this a while back I was using VVN-550, Norma URP, Ramshot Hunter, both 4350's, and Re-17. a starting load in the 58.0 gr. range for any of these powders usually resulted in moderate pressure and velocities. Working up, watching for signs of pressure or using a chronograph to stop at approximately 2950 - 3000 FPS. Best accuracy was at the upper end but go slowly and carefully as with all load development since the improved cases will not show signs of pressure until you hit the top end or over and then it's too late.
Best.