Wondering if anyone else has seen this, or has any idea why it would be the case. I was doing a routine Chrony check on my RAW tonight and I noticed that every time I changed out the magazine the first shot out of the mag the velocity drops by an average of 5 FPS. I ran 6 mags through and 5 out of the 6 the first shot dropped by at least 5 PFS below the average. The extreme spread on 72 shots was only 12 FPS, so still very good even with the first shot drops. It drops below 10 FPS if I exclude the first shot out of each mag from the calculation. Seems totally bizarre to me. Anyone else seen this or have any idea why it would be the case?