SR 4756 in M1 Carbine

grayingghost

Over the weekend I picked up a can of SR 4756 powder. I grabbed this simply because I had seen it listed in my old Lyman manual for loading the M1 carbine. The max load listed is 7.3grs. and this is like a pellet gun and will not function the action. Before I start increasing the load I would like to know if there are any higher loads listed anywhere. I read somewhere that older Speer reloading manual list other loads. Can anyone provide a functional load with this powder?

dcs shooters

I tried it years ago, and went back to the old stand by of 13.0grs of H110 [;)]
Couldn't get 4756 to function right [xx(]

charliemeyer007

From my Lyman cast bullet handbook spiral bound book from the early 70's. 30 Carbine Cases Rem Primer Rem 6 1/2

Lyman 311359 120 gr gc SR 4756
Starting Max
5.5 gr 1298 fps 23,400 CUP 6.5 gr 1463 fps 38,100 CUP

Lyman 311576 123 gr gc
5.1 gr 1232 fps 23,400 CUP 6.1 gr 1407 fps 39,400 CUP

Lyman 311410 130 gr
5.0 gr 1180 fps 22,000 CUP 6.0 gr 1371 fps 37,300 CUP

My dad like Al-8 other folks liked 2400 or 4227

SoreShoulder

Speer #9 lists 7.5 gr for the 100gr plinker and 7.3 gr for the 110 gr hollow point.

Ray B

SR 4756 is a premier powder for the 16 ga. Others work out better for rifles.