4th and final iteration of reloading 270 Winchester with 150 grain Nosler Partition bullets. Same powder and cartridge length, seven rounds each at 54.5 grain and 54.7 grains. 54.7 grains is the best charge for this firearm (TC Venture) and this projectile. 6 shot group was 0.6", that opened up to 0.97" when the seventh round was low (shooter error).
Time to move on to other load combinations, as this one is dialed in as good as it is going to get.
Chrono indicates 2795 FPS.
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