Reloaded up some .223 Federal brass using 55g Hornady VMAX and 55g Hornady SPSX (OAL 2.250). I made up four batches in total, with combinations of those two bullets and two different powders, Varget and H4895 (powder charge for the Varget was slightly higher than the H4895). I targeted a muzzle velocity of 3175 fps so as to fit the ballistics to the holdover reticle of my Burris Fullfield scope.
I shot some of all four last Friday at about 100 yards, just laying the rifle on top of the range bag. I expected fairly equal POA/POI between the two bullets since the bullet weights were the same and bullet shapes were very very similar (although bc differs). However, I found the SPSX hit about 1" lower but about 4" to the left, while using the VMAX bullets (which were used previously (factory loads) for sighting in the scope), and the H4895, I got 1MOA groups with POI 1/2 - 3/4 inch to the left. This POI shifting around is way more than I would have ever expected, but coupled with my recent experiences (posted previously) with factory 45g VMAX, 55g VMAX and 75g BTHP, I'm getting the message, lol. So, with the reload data, I'm ready to punch paper until winter when I'll have a go for coyotes for the first time.
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