I am attempting to find out why the results of shooting two types of bullets are different.
I shoot a STAR30M 9mm. I have noticed that when i shoot Xtreme 124gr HP and MG FMJ at 7yds i get great results from both types of bullets, providing tight 1/2 inch to 1.5in shot groups.
When i get past 10yds, all goes awry (with the FMJ, CMJ, plated RN). At 25 yards with the Xtreme HP i can get 1 to 2in shot groups. But, with the Mg FMJ the best i can get is 8-10inch groups. I have tried seating from 1.160 down to 1.120, and have tried, W231, Longshot and Power Pistol at many different loads, to no avail.
Can someone explain maybe why this happens. I also have two barrels that i have tried and get the same results. Also, this appears to happen only with FMJ bullets, i have tried Berrys and MG RN bullets and get the same results.:banghead::banghead:
I shoot a STAR30M 9mm. I have noticed that when i shoot Xtreme 124gr HP and MG FMJ at 7yds i get great results from both types of bullets, providing tight 1/2 inch to 1.5in shot groups.
When i get past 10yds, all goes awry (with the FMJ, CMJ, plated RN). At 25 yards with the Xtreme HP i can get 1 to 2in shot groups. But, with the Mg FMJ the best i can get is 8-10inch groups. I have tried seating from 1.160 down to 1.120, and have tried, W231, Longshot and Power Pistol at many different loads, to no avail.
Can someone explain maybe why this happens. I also have two barrels that i have tried and get the same results. Also, this appears to happen only with FMJ bullets, i have tried Berrys and MG RN bullets and get the same results.:banghead::banghead: