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Rifles, Reloading, Optics, Equipment
Reloading
.338 wm temp stability powders
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<blockquote data-quote="RevJim" data-source="post: 1594184" data-attributes="member: 86754"><p>I never thought much about cold temp problems, growing up and living in East, Tx until I was 34. I just always worked up my loads ( via the usual "pressure signs", etc) in the hot summertime. I may have hunted a handful of days that were below freezing, most just "right at" freezing. I did the same thing when I moved here to Utah back in 1990. I never had any issues, but never used any "wonky" powder, in fact, I've always been a big fan of Hodgdon powders. I only had a heat problem with R22 in a .280AI when I went back to Texas (mid 90s) and it was 75 deg, but the load had been worked up about 50 degs. I had a hard bolt lift w/flat primers. I liked R22 in the 300WM very well and in a 224 TTH, down to below freezing w/the 224 TTH. I then tried to use R19 ( 2002) with the .338WM & 185 XLC. It went wonky at 10 deg, but it might have done it at 50 degs because it was so compressed. I couldn't hardly get enough powder in the case for decent speed with that slick XLC. The powder had formed into a solid cake. So, it might not have been "just the R19" cold temp issue alone. However, it spooked me big time! I won't use it in anything but a 240w ( and I don't have one anymore!) I just dropped back to H4350 and killed my elk that year. I had great results and stability with R15 in my old 35 Whelen AI. Also with varget, so the above chart seems to be accurate. I cannot think of any issues I ever had with the IMR powders either. I never liked having a "winter load and a summer load", in anything. So, I will try some of the newer powders i.e. R26 and R17. While I would like to "have" 2900+ with the Barnes 225 TTSX, I don't hunt anywhere or at any distance that I couldn't do the same thing with 2750-2800. So I will just have to see where my best accuracy is. Thanks for all the input guys! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="RevJim, post: 1594184, member: 86754"] I never thought much about cold temp problems, growing up and living in East, Tx until I was 34. I just always worked up my loads ( via the usual "pressure signs", etc) in the hot summertime. I may have hunted a handful of days that were below freezing, most just "right at" freezing. I did the same thing when I moved here to Utah back in 1990. I never had any issues, but never used any "wonky" powder, in fact, I've always been a big fan of Hodgdon powders. I only had a heat problem with R22 in a .280AI when I went back to Texas (mid 90s) and it was 75 deg, but the load had been worked up about 50 degs. I had a hard bolt lift w/flat primers. I liked R22 in the 300WM very well and in a 224 TTH, down to below freezing w/the 224 TTH. I then tried to use R19 ( 2002) with the .338WM & 185 XLC. It went wonky at 10 deg, but it might have done it at 50 degs because it was so compressed. I couldn't hardly get enough powder in the case for decent speed with that slick XLC. The powder had formed into a solid cake. So, it might not have been "just the R19" cold temp issue alone. However, it spooked me big time! I won't use it in anything but a 240w ( and I don't have one anymore!) I just dropped back to H4350 and killed my elk that year. I had great results and stability with R15 in my old 35 Whelen AI. Also with varget, so the above chart seems to be accurate. I cannot think of any issues I ever had with the IMR powders either. I never liked having a "winter load and a summer load", in anything. So, I will try some of the newer powders i.e. R26 and R17. While I would like to "have" 2900+ with the Barnes 225 TTSX, I don't hunt anywhere or at any distance that I couldn't do the same thing with 2750-2800. So I will just have to see where my best accuracy is. Thanks for all the input guys! :) [/QUOTE]
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.338 wm temp stability powders
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