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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
The 25 sst...up and running
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<blockquote data-quote="JARHEAD1371" data-source="post: 2061645" data-attributes="member: 12950"><p>I'm now 50 rounds into my new 25 SST and I need some advice. It's been about 9 yrs since I've had to work up a load for a new rifle and set up dies and such. </p><p></p><p> Today I shot loads starting at 59.3 gr up to 60.5 gr of H1000, BR2 primers, and 131 blackjack bullets. My barrel is 24".</p><p></p><p> By far, 60.2 gr shot the best 3 shot group. The pic shows 6 total shots, the first 3 are circled. The velocity was 3026, 3021, and 3024. I shot the other 3, marked in green, and quickly lost excitement. The group quickly opened substantially and the velocity for those 3 were 3036, 3014, and 3031. Shot 4 was at 12 o'clock, shot 6 was just above the first 3.</p><p></p><p> I have eliminated every variable possible with my hands loads. One thing I'm thinking is maybe my neck tension isn't where it needs to be. What neck bushing is everyone using? Thank you for any advice.</p></blockquote><p></p>
[QUOTE="JARHEAD1371, post: 2061645, member: 12950"] I'm now 50 rounds into my new 25 SST and I need some advice. It's been about 9 yrs since I've had to work up a load for a new rifle and set up dies and such. Today I shot loads starting at 59.3 gr up to 60.5 gr of H1000, BR2 primers, and 131 blackjack bullets. My barrel is 24". By far, 60.2 gr shot the best 3 shot group. The pic shows 6 total shots, the first 3 are circled. The velocity was 3026, 3021, and 3024. I shot the other 3, marked in green, and quickly lost excitement. The group quickly opened substantially and the velocity for those 3 were 3036, 3014, and 3031. Shot 4 was at 12 o'clock, shot 6 was just above the first 3. I have eliminated every variable possible with my hands loads. One thing I'm thinking is maybe my neck tension isn't where it needs to be. What neck bushing is everyone using? Thank you for any advice. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
The 25 sst...up and running
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