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WESHOOT2, I was thinking the same thing. An extreme spread of 200 fps seems very high, but I have had similar experiences with Unique in 45 ACP. I loaded some test ammo using Remington cases, WLP primers, 200gr cast LSWC seated to an OAL of 1.237". Charge weights ran from 5.4 gr to 6.2 gr in 0.2 gr increments. Results were as follows.
charge......AV fps......ES
5.4--------819-------102
5.6--------881-------157
5.8--------957-------142
6.0--------961-------173
6.2--------936-------147
This was really strange data and I have not bothered to try this again. I probably should, I might have been having a really bad day at the reloading bench. Velocities were measured at 10 feet from the muzzle using a Shooting Chrony that is usually very reliable and repeatable. By the way, the lowest velocity read was not always the first shot in the series, each series was 10 shots.
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