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Rifles, Reloading, Optics, Equipment
Reloading
Reloader 22 in 6.5 creedmoor
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<blockquote data-quote="dsculley" data-source="post: 1051112" data-attributes="member: 77514"><p>Notice: What I am about to provide is not a tested load. It is a theoretical load based on Quickload computations using standard case volume, burn rate factor, loaded length, etc. If you use any of this information you do so at your own risk. If you should decide to use this combination of components it is prudent to use good load development practices and work up to the maximum load from a lower load watching for pressure signs as you do so!</p><p></p><p>Out of curiosity I ran the combination of 6.5 Creedmoor, 130 gr Sierra GK & RL22. I did not adjust case volume or loaded length. With 48.5 gr RL22 the pressure is just over 53,000 psi, MV 2893 and case fill 104.3%. This combination coincided with a predicted node using Chris Long's table using a 24" barrel. The next node was not reachable without going way over pressure. 2 more grains puts this over pressure in Quickload.</p><p></p><p>I also ran this using the 140 gr SMK. This combination yielded similar results with 47.4 gr RL22: MV 2,847, Max Pressure 57,056, Case fill 105.8%</p><p></p><p>As you can see, these are compressed loads. Both loads are on the same Barrel Time Node of ~ 1.22 ms. When you go over these loads, pressure begins to spike quickly. These combinations are possibly do-able, but caution should be used in working up. Pressure spikes due to temperature sensitivity could cause problems with these loads.</p><p></p><p>As I said earlier, all theoretical.</p><p></p><p>Dennis</p></blockquote><p></p>
[QUOTE="dsculley, post: 1051112, member: 77514"] Notice: What I am about to provide is not a tested load. It is a theoretical load based on Quickload computations using standard case volume, burn rate factor, loaded length, etc. If you use any of this information you do so at your own risk. If you should decide to use this combination of components it is prudent to use good load development practices and work up to the maximum load from a lower load watching for pressure signs as you do so! Out of curiosity I ran the combination of 6.5 Creedmoor, 130 gr Sierra GK & RL22. I did not adjust case volume or loaded length. With 48.5 gr RL22 the pressure is just over 53,000 psi, MV 2893 and case fill 104.3%. This combination coincided with a predicted node using Chris Long's table using a 24" barrel. The next node was not reachable without going way over pressure. 2 more grains puts this over pressure in Quickload. I also ran this using the 140 gr SMK. This combination yielded similar results with 47.4 gr RL22: MV 2,847, Max Pressure 57,056, Case fill 105.8% As you can see, these are compressed loads. Both loads are on the same Barrel Time Node of ~ 1.22 ms. When you go over these loads, pressure begins to spike quickly. These combinations are possibly do-able, but caution should be used in working up. Pressure spikes due to temperature sensitivity could cause problems with these loads. As I said earlier, all theoretical. Dennis [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Reloader 22 in 6.5 creedmoor
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