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The Range
Ammo & Reloading
What did you do in the reloading room today?
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<blockquote data-quote="undeg01" data-source="post: 3926897" data-attributes="member: 26476"><p>I learned something today. 10.2 gr of 800X under 180 gr XTP is HOT! First shot crony’d at 1,474 fps. Checked the brass and the primer was flattened a little but no bulges, splits or cracks. I shot 8 rds and they were all faster that 1,400 fps. I wouldn’t want to load them that hot anyway, but accuracy was not good regardless.</p><p></p><p>I had some Sig factory primed brass and was surprised to find that was hotter than my Starline primed with mag primers. For the same powder charge, I was getting 25 - 50 fps faster with the Sig brass.</p><p></p><p>In end end, I settled on two loads for further testing. Both with 200 gr XTP. </p><p></p><p>7.8 gr of CFE Pistol using the Sig primed brass yielded sub-2” groups at 25 yds at 1250 fps.</p><p></p><p>9.6 gr of 800X using mag primers yielded 1.75” groups at 1370 fps. </p><p></p><p>9.4 gr was still around 1360 fps but the groups opened up to 2” or just over and 9.2 gr opened up to 2.75“ groups.</p><p></p><p>Oh, and I shot a couple Underwood 180 gr loads that came in at 1350 fps, out of my 6” Springfield. I think they advertise 1300 out of a 5” barrel.</p></blockquote><p></p>
[QUOTE="undeg01, post: 3926897, member: 26476"] I learned something today. 10.2 gr of 800X under 180 gr XTP is HOT! First shot crony’d at 1,474 fps. Checked the brass and the primer was flattened a little but no bulges, splits or cracks. I shot 8 rds and they were all faster that 1,400 fps. I wouldn’t want to load them that hot anyway, but accuracy was not good regardless. I had some Sig factory primed brass and was surprised to find that was hotter than my Starline primed with mag primers. For the same powder charge, I was getting 25 - 50 fps faster with the Sig brass. In end end, I settled on two loads for further testing. Both with 200 gr XTP. 7.8 gr of CFE Pistol using the Sig primed brass yielded sub-2” groups at 25 yds at 1250 fps. 9.6 gr of 800X using mag primers yielded 1.75” groups at 1370 fps. 9.4 gr was still around 1360 fps but the groups opened up to 2” or just over and 9.2 gr opened up to 2.75“ groups. Oh, and I shot a couple Underwood 180 gr loads that came in at 1350 fps, out of my 6” Springfield. I think they advertise 1300 out of a 5” barrel. [/QUOTE]
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