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Rifles, Reloading, Optics, Equipment
Reloading
Reloder 26 in 280 Ackley
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<blockquote data-quote="Ridgerunner665" data-source="post: 1105023" data-attributes="member: 12660"><p>Messed around with some temp sensitivity testing today...I was testing Norma MRP...it failed miserably at 2.9 fps per degree...so I went straight to the fun store and got some Reloder 26.</p><p></p><p>61 grains of RL26 under a 160 Accubond....3,017 fps</p><p>ES....34</p><p>SD....17</p><p></p><p></p><p>10 rounds</p><p></p><p></p><p>That's the warm weather max... Now if it holds true to what Alliant says, and only loses .5 fps/degree....I'll be flying.</p><p></p><p></p><p>May try magnum primers to lower ES...</p><p></p><p></p><p>Reloder 26 isn't anywhere near as slow burning as QuickLoad says it is...in rounds comparable to 280 Ackley capacity, it is REALLY close to RL22 and MRP....Really close....Something else I noticed, when using RL26... The barrel gets warmer at the muzzle end than it does at the chamber end.... much warmer.</p><p></p><p></p><p>That said... RL26 is a cooler burning powder than MRP/RL22...Takes at least 2 rounds to get the barrel warm enough to feel it.</p><p></p><p></p><p></p><p>Burn rate (Ba) adjustment in QuickLoad is .386</p></blockquote><p></p>
[QUOTE="Ridgerunner665, post: 1105023, member: 12660"] Messed around with some temp sensitivity testing today...I was testing Norma MRP...it failed miserably at 2.9 fps per degree...so I went straight to the fun store and got some Reloder 26. 61 grains of RL26 under a 160 Accubond....3,017 fps ES....34 SD....17 10 rounds That's the warm weather max... Now if it holds true to what Alliant says, and only loses .5 fps/degree....I'll be flying. May try magnum primers to lower ES... Reloder 26 isn't anywhere near as slow burning as QuickLoad says it is...in rounds comparable to 280 Ackley capacity, it is REALLY close to RL22 and MRP....Really close....Something else I noticed, when using RL26... The barrel gets warmer at the muzzle end than it does at the chamber end.... much warmer. That said... RL26 is a cooler burning powder than MRP/RL22...Takes at least 2 rounds to get the barrel warm enough to feel it. Burn rate (Ba) adjustment in QuickLoad is .386 [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Reloder 26 in 280 Ackley
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