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Expansion of Hornady 90 gr xtp
It is alleged that these pistol bullets will expand at low or subsonic velocites. Worked down a load till it went subsonic, the bullets went thru completly thru 2 pcs of 5/4" treated southern yellow pine and stuck or bounced off the third pce. No expansion at all at 30 yds, at 85 yds the groups were 4 to 5 inches. bolt action with a 6.5 twist.
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