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71.0 gr. R-15 with Swift A-frame 300gr. and Barnes banded solid, 300 gr. Same point of impact in a Win M-70 and performed well on two Buff and a zebra. Temps in the 90's and no pressure signs, velocity 2580 fps.
I use a very similar load on both my 375H&H as well as my .416 Rem..great combo...swift bullets and Barnes solids..poi is very close in both rifles for both types of bullets.. RL-15 seems to work very well..and yes, as you stated, had a couple hunts there where the temps were at or a bit over 100F ..no issues with the .416 Rem..
Ripp
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