For fast powder subs from a bolt gun, here is a sample of Quickload estimates with a 180. To be truly useful, we really need to know specifics for actual bullet, AOL & powder. Note that I have the data sorted with lowest muzzle pressure on top.
Code:
Cartridge : .300 AAC Blackout (SAAMI)
Bullet : .309, 180, LEE C309-180-R
Cartridge O.A.L. L6: 2.110 inch = 53.59 mm
Barrel Length : 16.0 inch = 406.4 mm
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Vihtavuori N310 40.1 4.3 0.28 1000 100.0 25288 1078 1.720
Hodgdon Clays 49.3 4.4 0.28 1000 100.0 26079 1083 1.696
Hodgdon TiteGroup 30.8 4.7 0.30 1000 100.0 21673 1123 1.763
Vihtavuori N320 41.4 4.5 0.29 1000 100.0 20563 1131 1.795
Alliant RED DOT 45.9 4.2 0.27 1000 100.0 21738 1139 1.768
Alliant GREEN DOT 43.0 4.4 0.29 1000 100.0 20172 1152 1.795
Hodgdon HP38 30.6 4.7 0.31 1000 100.0 19059 1160 1.812
Accurate Nitro 100 42.4 4.1 0.27 1000 100.0 20196 1163 1.789
Accurate Solo 1250 42.4 4.7 0.30 1000 100.0 18142 1168 1.834
Ramshot Zip 30.6 4.8 0.31 1000 100.0 18653 1169 1.821
Winchester 231 34.1 4.8 0.31 1000 100.0 18653 1169 1.821
Vihtavuori N330 38.7 4.7 0.30 1000 100.0 17623 1188 1.861
Hodgdon Universal 38.0 4.5 0.29 1000 100.0 17554 1204 1.861
Vihtavuori N340 38.9 4.8 0.31 1000 100.0 15798 1234 1.900
Accurate No.2 37.2 4.6 0.30 1000 100.0 15529 1254 1.898
Alliant BULLSEYE 33.2 4.1 0.26 1000 100.0 15472 1270 1.899
Alliant UNIQUE 37.6 4.5 0.29 1000 100.0 14941 1281 1.937
.