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Old July 22, 2000, 04:56 PM   #31
Clark
Senior Member
 
Join Date: December 4, 1999
Location: WA, the ever blue state
Posts: 2,821
I have a car that reaches the bottom of the gas gauge and turns on an idiot light when the tank is still 1/4 full.

I carried gas and ran out. I found that if I set the trip meter when the idiot light came on, I had 80 miles to get to a gas station.

Today's load data is like that gas gauge and has to be worked around to get at the truth.

I am finding that I have to make assumptions about the ratio of change in pressure to change in powder [greater than 2 for fast powders, less for slower] and compensate for the wimpy over all length they tested at, and I have to raise the pressure on 9mm from 35k to 41k to get +P+. I have raise the pressure on 38 specials from 18.5k to 35k to get +P++++++.
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