Hello Ron I'd love to test out your air rifle bullets. I have a umarex hammer .510 currently using 255 gr from Mr. Hollowpoint. They fit a bit loose in my magazine. Looking for maybe 275 or 300 gr.
Hello Ron I'd love to test out your air rifle bullets. I have a umarex hammer .510 currently using 255 gr from Mr. Hollowpoint. They fit a bit loose in my magazine. Looking for maybe 275 or 300 gr.
