The HK primers have been notorious for their slightly oversize. A search for "HK Primers Tight" will return many other fora posts about it.
One article I read (I think it was Gun Mart but it has since been edited) suggests not priming on a press because of this but that seemed like going a bit too far, just be careful when inserting.
Last edited by sarge4318; 29-09-2022 at 09:10 AM.
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