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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
RL33 Temperature Regression Thread
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<blockquote data-quote="Max Heat" data-source="post: 919895" data-attributes="member: 43153"><p>I know that 25 and (especially) 22 can be very finnicky/temperamental when it comes to temperature. But being that my inital testing has shown both of those formulations to be (way?) too fast for my new 32" 7RUM barrel, it looks like I'm all in with 33, at least until they come out with the RL30 formulation (if that ever happens). Consider this to be the 1st (that I know of) request for RL30, Alliant!</p><p></p><p>I only have hot-temperature RL33 load data for the factory rem 26" barrel. So I'm unable to directly compare to the new barrel. But I am definitely seeing the potential of 33. Nice 139SST groups with 100gr, and going to be trying 102.5 and 105 (my self-imposed limit) soon - depending on how much more snow we get hit with here today! </p><p></p><p>I want to avoid a replay of the "develop-your-max-loads-during-peak-cold-and-they-will-be-too-high-pressure-when-peak-hot-season-comes" scenario. But RL33 does seem to be very forgiving, or non-finnicky, when it comes to giving-or-taking a couple of grains. I HATE to see that is as bad as your testing shows, with regard to temperature though. I wouldn't have figured that. But good to know, as I won't have any such data of my own until this summer.</p></blockquote><p></p>
[QUOTE="Max Heat, post: 919895, member: 43153"] I know that 25 and (especially) 22 can be very finnicky/temperamental when it comes to temperature. But being that my inital testing has shown both of those formulations to be (way?) too fast for my new 32" 7RUM barrel, it looks like I'm all in with 33, at least until they come out with the RL30 formulation (if that ever happens). Consider this to be the 1st (that I know of) request for RL30, Alliant! I only have hot-temperature RL33 load data for the factory rem 26" barrel. So I'm unable to directly compare to the new barrel. But I am definitely seeing the potential of 33. Nice 139SST groups with 100gr, and going to be trying 102.5 and 105 (my self-imposed limit) soon - depending on how much more snow we get hit with here today! I want to avoid a replay of the "develop-your-max-loads-during-peak-cold-and-they-will-be-too-high-pressure-when-peak-hot-season-comes" scenario. But RL33 does seem to be very forgiving, or non-finnicky, when it comes to giving-or-taking a couple of grains. I HATE to see that is as bad as your testing shows, with regard to temperature though. I wouldn't have figured that. But good to know, as I won't have any such data of my own until this summer. [/QUOTE]
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RL33 Temperature Regression Thread
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