What I’ve found is they need atleast 26” barrels to get good speeds. Of many different 6.5 PRC and creedmore’s I’ve done loads on I’ve noticed they will be fine then suddenly get pressure. Also can be just fine then get a Hot or moist day at matches and they go to shit with pressure if your pushing them. The older tapered cases like win mags and rem mags and 308, 260 will show you pressure building more gradually. As opposed to it’s fine then it’s not. Just my experience.
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