Search found 2 matches

by jhutto
Sun Feb 25, 2007 8:39 pm
Forum: Reloading Forum
Topic: Standard deviation
Replies: 4
Views: 1303

thanks for your replies, I am learning. Hopefully i will not have to learn the hard way. Tomorrow I am going to buy a good set of checkweights for my scale. i want to make sure i am getting things right from load to load. less than 10 is about what I am looking for. Now I have somthing to strive for. Thanks!
by jhutto
Wed Feb 21, 2007 1:56 pm
Forum: Reloading Forum
Topic: Standard deviation
Replies: 4
Views: 1303

Standard deviation

(I recently bought a chrony)
What kind of consistancy should I be looking for in my .45ACP loads?
I curently reload with a 550 press. 5.6 Grains win231, Hornady XTP 230gr, and a 1.230 OAL. I am getting between about 780fps, and 830fps. Should my loads vary this much, or is this a sign of overpressure? These numbers are out of my 5'' 1911. Also, I was considering playing with the OAL, can the OAL cause overpressure If I make the OAL longer?
Thanks

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