More questions from a beginner.
I'm loading IMR 4350 with 150gn Hornady bullets in .303 brit. Thing is in the Load Data from three manuals IMR 4350 only appears in the Speers manual (not the Hornady either) does anyone have this powder in any other manual for this bullet and case? Another thing is Although I know that this is a high volume powder, but Speers lists COAL for this load @ 3.040" while the others list COAL for 150gn noticeably shorter @2.975" and 2.935". Is it better to go with the Hornady COAL as that is the bullet mfg, or stick to the Speers formula with more case length for the type of powder and the bullet closer to the rifling?
I'm loading IMR 4350 with 150gn Hornady bullets in .303 brit. Thing is in the Load Data from three manuals IMR 4350 only appears in the Speers manual (not the Hornady either) does anyone have this powder in any other manual for this bullet and case? Another thing is Although I know that this is a high volume powder, but Speers lists COAL for this load @ 3.040" while the others list COAL for 150gn noticeably shorter @2.975" and 2.935". Is it better to go with the Hornady COAL as that is the bullet mfg, or stick to the Speers formula with more case length for the type of powder and the bullet closer to the rifling?
