Well I loaded up some test rounds for 300 Win Mag with IMR 3031 to try and find an easy recoiling load. I used 150 gr Hornady Interbonds and CCI LR primers. The starting load was 59 grains. All five were hangfires. I could distinctly hear/feel the pin drop before the round went off. Surprisingly the group was about 1 1/2" at 100 yds. Velocity clocked in at around 3140 fps. I opted not to shoot the rest of my test rounds and plan on using a different powder. I am thinking that magnum primers might alleviate the problem. I am not sure that it's worth taking a chance of a hangfire while hunting in colder temps this winter though. Anyone experience this before?? Questions??? Comments???