In the CZ 527 w controlled round feed all rounds are feeding super, where the nick or shave that Grayfox touches on simply have proven to not be - a concern. Factory loads are proving to be some of my least favorite rounds with a crazy difference in velocity and less than accuracy from my 22" barrel.
Still I gave the 103 grain ELDX reloads a a serious try and my reloads did fine in terms of accuracy and extreme spread. They were primarily reloaded for my bolt gun and velocity did fine up to 2840 fps with an ES of 5 that is right single digits. The faster load is in single didget extreme spread.
Two water jug test were ran, one at 2300 muzzle velocity & the other at the 2840. The water jugs were shot at 100 yards. The lower velocity round was shot through a 1/2 gallon milk jug & 3 more 1 gallon jugs. This bullet was stuck in the off side of the 4th jug.The bullet retention came in at 74ish percent retention. Then you may not be surprised that the 2840 bullet had completely shed the core by the time it had entered the last jug.
That faster bullet that left the barrel at 2840 fps passed through 3 1gallon jugs and the jacket & maybe 15 grains of the core made it in to the fourth jug.
I come away with the opinion that this 103 grain ELDX will only be acceptable for my use if I reduce the load a good deal from top end. Expect the ELDX will do quite fine for those using the 16" AR barrels. I would have moved on to other bullets except I ran out of water jugs. O-well another day.
Still I gave the 103 grain ELDX reloads a a serious try and my reloads did fine in terms of accuracy and extreme spread. They were primarily reloaded for my bolt gun and velocity did fine up to 2840 fps with an ES of 5 that is right single digits. The faster load is in single didget extreme spread.
Two water jug test were ran, one at 2300 muzzle velocity & the other at the 2840. The water jugs were shot at 100 yards. The lower velocity round was shot through a 1/2 gallon milk jug & 3 more 1 gallon jugs. This bullet was stuck in the off side of the 4th jug.The bullet retention came in at 74ish percent retention. Then you may not be surprised that the 2840 bullet had completely shed the core by the time it had entered the last jug.
That faster bullet that left the barrel at 2840 fps passed through 3 1gallon jugs and the jacket & maybe 15 grains of the core made it in to the fourth jug.
I come away with the opinion that this 103 grain ELDX will only be acceptable for my use if I reduce the load a good deal from top end. Expect the ELDX will do quite fine for those using the 16" AR barrels. I would have moved on to other bullets except I ran out of water jugs. O-well another day.