MK4 Outing

After spending a little time with my Daystate MK4,I noticed a what seemed like some air coming from the magazine area when fired.That was odd because it still grouped excellent even out to 60yds.I found that the upper transfer port oring had failed.I replaced it but the weather had not been good enough to test it untill last weekend.I got out sunday evening and did some shooting using bags front and rear from the prone position.

3 shots 52yds 15.9gr Jsb’s

5 shots 70yds 15.9 Jsb