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Runswiththunder · February 12, 2013, 01:57 PM

I am debating the use of H4198 for my AR15 also. I tried 20.5 gr of H4198 with the Hornady 50 g ZMax. It did not cycle enough the strip the next round from the magazine. I next tried 21 gr of H4198. It cycled enough to strip the cartridges from the magazine, but failed to lock the bolt back after the last round in the magazine.
I may relegate this powder to my 30-30 rounds and stick to IMR 4895 for the AR15. I have IMR 3031 but haven't tried that with the AR15 yet.

February 12, 2013, 01:57 PM	#5
Runswiththunder Junior Member Join Date: November 23, 2009 Location: Summerfield, FL Posts: 9	I am debating the use of H4198 for my AR15 also. I tried 20.5 gr of H4198 with the Hornady 50 g ZMax. It did not cycle enough the strip the next round from the magazine. I next tried 21 gr of H4198. It cycled enough to strip the cartridges from the magazine, but failed to lock the bolt back after the last round in the magazine. I may relegate this powder to my 30-30 rounds and stick to IMR 4895 for the AR15. I have IMR 3031 but haven't tried that with the AR15 yet.