Quote:
Originally Posted by markg
How important do you guys believe using a chrono during this process is? For me its critical. I am looking at several factors, group size, Extreme spread, Standard deviation, and Velocity.
I use the .3 or a grain method generally but I do my research and find loads that are considered "classic" or have been used in competition effectively and start a bit under those and go up from there.
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I've never found a chrony to be that valuable.
I don't use the .3 grain method. I use an aproximate 1% of charge weight method.
.3 of a grain in a 17 hornet is a HUGE step.