I have a 6mmPPC that was built for me by RW Hart. I do not bench rest shoot competitively, just for fun. With Norma cases, Berger 68gr bullets, BL-C(2) powder and CCI 400 primers I got a 4-shot, 100-yard group of .257". I've used H322 and Varget and no group with Bergers, Hornady VMax or Sierra Varminters has been less than 0.5".
I have never separated cases for hunting or target practice but I read that it should be done for really precise benchrest shooting.
I resized, trimmed, cleaned the primer pockets of 50 Norma cases. 20% weighed 90.5gr; 13%= 90.6gr. ONE was 80.0gr (!!) and 2 were 80.9gr. The rest ran the full gammit from 90.0 to 90.9gr.
How much of a spread is acceptable?
I have never separated cases for hunting or target practice but I read that it should be done for really precise benchrest shooting.
I resized, trimmed, cleaned the primer pockets of 50 Norma cases. 20% weighed 90.5gr; 13%= 90.6gr. ONE was 80.0gr (!!) and 2 were 80.9gr. The rest ran the full gammit from 90.0 to 90.9gr.
How much of a spread is acceptable?