TackDriver284
Handloader
- Feb 13, 2016
- 2,505
- 1,970
The old Norma brass I used for the 300 Win Mag has no chance for reloading again, the primer pockets have loosened up after 5 to 6 firings and I loaded up 180 Ballistic Tips in new Lapua 300 Win Mag brass. RL22 in 3 round charges,,,74.1, 74.4, 74.7 and 75 grains lit with a CCI 250 magnum primer and .010" off the lands. I did not have any 180 Accubonds at that time, but 3 boxes just arrived at my door from Nosler. I recall shooting the 180 Ballistic Tips and Accubonds a few years ago, since they both have the same BC and both are same POI at 300 yards. I'm doing the same tests for a nilgai or a different big game hunt soon. Today my tests weren't bad either.
74.1 gr - 3150 fps ave
74.4 gr - 3161 fps ave
74.7 gr - 3175 fps ave
75.0 gr - 3190 fps ave
Old Norma fired brass with 75.0 grains was 3150 fps.
Headspace grew .014" on the new fired Lapua brass.
Strange thing happened this morning, I never had a misfire with the 300 Win Magnum, I pulled the trigger on the first round, and click,,,,I left the bolt closed as is, waited 2 minutes and puckered when I opened the bolt and saw that the primer was indented by the hammer, hoping it won't go off, quickly pulled out that round and placed it in the bed of my truck and went to proceed to shoot round # 2 and no hiccups. Continued with round # 3 and still no hiccups, so I decided to get round # 1 from the bed of the truck and closed the bolt on it and pulled the trigger and it did fire the 2nd time. Proceeded the rest of the rounds and 74.7 grains produced the best accuracy at 3175 fps with no pressure, and 75.0 grains - 3190 fps showed faint ejector marks on one brass. Grouped at .35 MOA with new brass which is reasonable for hunting, and I'm happy with that, but I'm not using Ballistic Tips for the upcoming hunt, so I'll load up some Accubonds using 74.7 grains and head over to the range again to verify. Hopefully both bullets shoots the same POI again. I'll continue using that load without any tweaking until all brass are fireformed. I am excited to see how the AccuBond will perform on nilgai, of course it will work beautifully since I used one on a red stag earlier in the year.
74.1 gr - 3150 fps ave
74.4 gr - 3161 fps ave
74.7 gr - 3175 fps ave
75.0 gr - 3190 fps ave
Old Norma fired brass with 75.0 grains was 3150 fps.
Headspace grew .014" on the new fired Lapua brass.
Strange thing happened this morning, I never had a misfire with the 300 Win Magnum, I pulled the trigger on the first round, and click,,,,I left the bolt closed as is, waited 2 minutes and puckered when I opened the bolt and saw that the primer was indented by the hammer, hoping it won't go off, quickly pulled out that round and placed it in the bed of my truck and went to proceed to shoot round # 2 and no hiccups. Continued with round # 3 and still no hiccups, so I decided to get round # 1 from the bed of the truck and closed the bolt on it and pulled the trigger and it did fire the 2nd time. Proceeded the rest of the rounds and 74.7 grains produced the best accuracy at 3175 fps with no pressure, and 75.0 grains - 3190 fps showed faint ejector marks on one brass. Grouped at .35 MOA with new brass which is reasonable for hunting, and I'm happy with that, but I'm not using Ballistic Tips for the upcoming hunt, so I'll load up some Accubonds using 74.7 grains and head over to the range again to verify. Hopefully both bullets shoots the same POI again. I'll continue using that load without any tweaking until all brass are fireformed. I am excited to see how the AccuBond will perform on nilgai, of course it will work beautifully since I used one on a red stag earlier in the year.
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