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mehavey · April 21, 2011, 08:48 PM

More like 1:30 - 2:30 O'clock for me.

Look here to see what is happening upon ejection (and also why the last round always lands slightly behind you

)
http://www.youtube.com/watch?v=PYfxzrTar0g

That said, proper ejection timing is affected by both the powder load and it's burn-rate (affecting the port pressure). QL says 42.4gr of H335 in a 30-06 case under a 150gr bullet is only 65% case fill

...and a relatively quick burn (leading to relatively low port pressure/ejection speeds)

Try any of these loads from the NRA (Master Po) and see if your problems don't clear up:

Recommended .30 caliber M1 loadings from the NRA
http://masterpostemple.bravepages.com/M1load.htm
147 - 155 grain FMJ or HPBT bullets
IMR 3031 - 48.0 grains
IMR 4895 - 49.0 grains
IMR 4064 - 50.0 grains
W748 - 48.0 grains
AA2460 - 49.0 grains
AA2520 - 51.0 grains
AA2495 - 50.5 grains
H4895 - 49.0 grains
BLC-2 - 49.0 grains
H335 - 49.0 grains Note this runs higher chamber pressure/but also gets port pressure (& ejection speed) up).
RL-12 - 48.0 grains

April 21, 2011, 08:48 PM	#9
mehavey Senior Member Join Date: June 17, 2010 Location: Virginia Posts: 6,903	More like 1:30 - 2:30 O'clock for me. Look here to see what is happening upon ejection (and also why the last round always lands slightly behind you ) http://www.youtube.com/watch?v=PYfxzrTar0g That said, proper ejection timing is affected by both the powder load and it's burn-rate (affecting the port pressure). QL says 42.4gr of H335 in a 30-06 case under a 150gr bullet is only 65% case fill ...and a relatively quick burn (leading to relatively low port pressure/ejection speeds) Try any of these loads from the NRA (Master Po) and see if your problems don't clear up: Recommended .30 caliber M1 loadings from the NRA http://masterpostemple.bravepages.com/M1load.htm 147 - 155 grain FMJ or HPBT bullets IMR 3031 - 48.0 grains IMR 4895 - 49.0 grains IMR 4064 - 50.0 grains W748 - 48.0 grains AA2460 - 49.0 grains AA2520 - 51.0 grains AA2495 - 50.5 grains H4895 - 49.0 grains BLC-2 - 49.0 grains H335 - 49.0 grains Note this runs higher chamber pressure/but also gets port pressure (& ejection speed) up). RL-12 - 48.0 grains Last edited by mehavey; April 21, 2011 at 08:57 PM.