116 in 30-06

Winchester case
Cci 200 primer

Right casing- shot one round prior to one on left
Left casing- happened on 3 rounds out of 27. First 2 I re-chambered and went off. The other would not fire.

Next round would fire same as the one on right

Any idea what would cause this? Gun is new (few years old- won at banquet and not fired until now) Rcbs hand priming tool is used on countless other rifles and casings without issue.


Image appears as there is flow around firing pin- not the case just appears that way in the pic