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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Throat erosion and double-based powders.
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<blockquote data-quote="Max Heat" data-source="post: 638901" data-attributes="member: 43153"><p>I used to run H414 in the 7mag with the 120's. But after I tried RL-19, I never used the H414 again. The RUM barrel will be 26", as that was the only option for the shaw group buy. That is the same length as what the guy who developed the 96.5gr of RL-25 with 120's clocked at 3950 used. The next one WILL be a 30 incher. </p><p></p><p>It is the 200fps difference between summer and fall temps that bothers me about RL-25 though (if true). I don't know at what temp the guy developed that load. But if it IS true, I'm wondering if that kind of number change would be similar for RL-19. If so, the 75gr charge (using 120's) that gave me 3680 in the 7mag HAS to be TOO HOT for warm weather, as it was developed at temperatures below 40 degrees F. I remember that my chrony F1 was giving me some fits down at those temps. The longer it sat set up out in the cold, the more it would be throwing initialization errors.</p></blockquote><p></p>
[QUOTE="Max Heat, post: 638901, member: 43153"] I used to run H414 in the 7mag with the 120's. But after I tried RL-19, I never used the H414 again. The RUM barrel will be 26", as that was the only option for the shaw group buy. That is the same length as what the guy who developed the 96.5gr of RL-25 with 120's clocked at 3950 used. The next one WILL be a 30 incher. It is the 200fps difference between summer and fall temps that bothers me about RL-25 though (if true). I don't know at what temp the guy developed that load. But if it IS true, I'm wondering if that kind of number change would be similar for RL-19. If so, the 75gr charge (using 120's) that gave me 3680 in the 7mag HAS to be TOO HOT for warm weather, as it was developed at temperatures below 40 degrees F. I remember that my chrony F1 was giving me some fits down at those temps. The longer it sat set up out in the cold, the more it would be throwing initialization errors. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Throat erosion and double-based powders.
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