SR 4756 powder?

[fal_762x51]

I was given a tub of SR4756 powder and was wondering if I could use it in a .30 Carbine load with plated bullets under 1600fps. Is this possible?

[Poygan]

My Lyman cast bullet handbook lists 4756 under the rifle loads as follows:

Lyman .311359/113 grains: 5.5 grains for 1298 starting load and 6.5 grains for 1463 max load.

Lyman .311576/120 grains: 5.1 grains for 1232 starting load and 6.1 grains for 1407 max load.

Lyman .311410/130 grains: 5.0 grains for 1180 starting load and 6.9 grains for 1371 max load.

This should give you a starting point as you didn't list your boolit weight. I have used 4756 in the carbine for Blackhawk loads.

[jonk]

FWIW it won't cycle and M1 carbine.

[captain-03]

I have used it with different carbine load data and with several different carbines -- none of the loads would cycle the action ..... went up to the max load data and still would not cycle the acitons ...

[MGD]

SR4756 is my favorite for 44 Special try 7- 7.5 gr with a Keith SWC of 255 grains. Or find someone who shoots handgunds and swap for a suitable carbine powder.

[jonk]

It is very good as a reduced rifle powder too; about 14 gr under anything up to about a 200 gr bullet in an 06 class case does about like Red Dot and Unique for me.

[Le Loup Solitaire]

As pointed out above 7.0- 7.5 grains 4756 works well in the 44 special. Nine grains of it is for me a favorite loading in the 44 mag with a 250 grain Keith type bullet in the S&W M29. Good accuracy and doesn't kick much. good for target.
I also use it in the 9mm usually in my Luger. I load 4.7 grains behind a 155-120 gr bullet and get good accuracy at 25 meters. It fills most of the 9mm case which does eliminate the possibility of a double charge. Pressure is lower than with any of the faster powders that also work well in the 9 mm. It can also work in the 38 special; Dupont used to list loadings for it in their Handloaders Guide. LLS