Low & Slow: reduced loads
.308 Winchester
a. 26 inch barrel with a 220 grain NEI .308 cast bullet over 3 grains of Clays is almost silent
b. 24 inch barrel with a 150 grain RCBS bullet, 3 and ½ grains was needed and it was like a loud cap gun.
c. 150gr cast bullet* load 13 grs. of Red Dot in .308 or .30-06 at about 1600 fps
d. 170gr, cast bullet* 13 grs. of Red Dot in .308 or .30-06, about 1500 fps
e. 200gr. cast bullet* 13 grs. of Red Dot in .308 or .30-06, about 1450 fps
f. play with powder levels of Bullseye or Clays for silent loads...but you are not going to get there with 180 grain cast slugs and under.
g. 170 thru 190 grain cast slugs
i. 5 grains of WW231 or HP38 will go around 1000 fps
ii. 8 grains of Unique goes 1250 fps.
iii. 20 grains of 2400 or 18 grains of SR 4759 goes 1800 fps.
iv. * Note: Lubricated Jacketed bullet velocities are about 120-150fps less than a lubricated lead bullet of the same weight.
The Buckshot Option
a. 30-caliber rifles loaded with a single 0-Buckshot, .32-inch diameter, 48 gr., round lead ball.
b. 3.0 grains of Bullseye powder with Dacron of Kapok fiber and then the lead ball.
c. called "the ideal cellar and small-game load," and is suitable for most of the major .30-caliber rifles (including the .30-’06 Springfield, .308 Winchester, .30-30 Winchester, .300 Savage, and .30-40 Krag).