Took the Cabela Hawken out for exercise today. Wind was blowing hard. 15 knot crosswind with gusts to 20+. My clean bore shots have always been away from the pack using Pyrodex. Today, I loaded 100 T7 on the clean bore and a 200 10mm XTP and followed with 2 identical rounds but using Pyrodex. Very interesting I thought.
50 yds., open sights, 200/10mm XTP, 100 T7 & 100 RS

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I turned to the 100 and could not get the 200's to behave. At all [>:]
100yds., open sgts, 200/10mm XTP. 100 RS

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Surprised (and hoping) the wind could be so significant a factor, I grabbed some 250 JHP Noslers and HPH 12's and returned to the 50 yd. target. They were the heaviest bullets I had.
50 yds., open sgts, 250 Nosler, 90 RS

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I wasn't happy about the wide right shot (#3), but chit happens. I turned back to the 100 and managed a 2 7/8" group.
100 yds., open sgts, 250 JHP Nosler, 90 RS

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I then threw 4 or 5 of the 200 10mm's at the 200 yd target and that was a waste of time, and ammo. They were catching the background crab paper I put up a good 2 feet right of POA.
I think I'm gonna be happy when I get a calm day out there. I think I have the sights set to where the 200 XTP's with 100 RS will be zerod at 200 and the 250 Noslers (I plan to hunt with the 260 Partitions) will be zeroed at 100 using 90 RS.
Now, I may have to change my swabbing methods thanks to Semisane's science project.