just working up a load for my 270. imr 4831 and Sierra 130 pro hunter. first group was the tightest at about 7mm which is more than accurate enough for my needs. it was 53 grains of 4831 so towards the lighter end of the range. I forgot to take my chrony so unsure of velocity. I'm going to load up some more and re shoot with chrony. just thinking if the velocity is low do i get a faster loading and mess about with seating depths or do I just say accuracy trumps speed and leave it as it is.
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