06-18-2012, 05:24 PM
ChellieWiles Wrote:I used different increments and had different results, but the specifics aren't too important to the data I've taken myself under my tolerances. An interesting thing I noticed from shooting on the east coast and west coast is max load variances. I figured that in Wyoming, the air was dryer so the propellant burned faster than it would on the east coast where our air has about 65% humidity so the load is a bit "damper" slowing down the burn rate. This is the only reason I can think of as to why my 5.56 loads a few years ago were so far off (maybe 3 grains due to overpressure with some powders) than what I had previously recorded.
Interesting. I wonder if altitude could play a part? I wouldn't think so, but maybe pushing a lower mass of air out of the barrel affects things.
How do the 108 Scenars perform in the wind at 1,000? I would think the heavier bullets would do better.
RR