Hi, I've got a question regarding some interesting numbers off the chrono. Last year this time I had a load for my 300RUM doing just about 3400fps with a 180g Accubond over 96.3g Retumbo purchased 9/04. This year I had a few of those loads I put together last year still around and thought I should reconfirm my velocity. I've found it to average about 3285fps over about 10 rounds with about a 20fps spread. I'm using the same chrono (Oehler 33P) at the range as last year. A local 1000yd. world champ Palma shooter uses this chrono and just checked his loads on it the other day. He's found the chrono to be consistent and accurate from year to year. Any ideas to explain this? Thank you!