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To Shoney:
Can you cite the source for your earlier table of relative primer power? I think there is more to this problem of hangfires than meets the eye. Using your table, can you explain why a combination of Rem 9 1/2 primers with 71gr Reloder 19 behind a Sierra 165gr HP in the .300 Win Mag produced several hangfires for me?...or is there something else going on? ...like too much graphite retardant on Reloder 19?...or ammo temperature (single loaded at the bench on a 50degree day)? When I use 70gr IMR-4350 instead of RL19 in the same cartridge, there is never an ignition problem! I think handloaders should have better knowledge about primer/powder behavior than the manuals tell us.
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