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Old 06-10-2018, 08:11 PM
amosfella amosfella is offline
 
Join Date: May 2013
Posts: 3,222
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Quote:
Originally Posted by markg View Post
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.
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.
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