Quote:
Originally Posted by WR Moore
Take the alleged velocities of many old time loads with a sack of salt. Velocities in 1899 were most likely calculated from ballistic pendulum results and might also be padded a bit since there was no practical way for anyone to check them. Now if someone lately has produced some black powder loads and clocked those on a chronograph, we might have a better idea what the used to get way back when.
Around 4.5 gr Unique clocks pretty much the same as todays 158 RNL loads.
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One of the members here, Alk8944, actually chronographed some .38 Special black powder loads in 2016. He used 21.5 grains FFFg in old balloon head cases that I had and sent to him. This load propelled a 158 grain cast bullet to 822 ft/sec in a 6 inch barreled Model 10. He also got similar results with several smokeless loads from the 1960's and 1970's. These results are not really much different from claimed velocities from 1899 to the present.