I am new to reloading, and am still working on perfecting the process. Well, I prepared my first 20-round lot of reloaded 7mm Remington Short-Action Ultra Magnum (7mm SAUM) ammo and went out to the range a couple of weekends ago with my Remington Model Seven rifle and a box of factory ammo. I fired the Model Seven with the factory ammo with no problems, and a nice, tight shot group at 50 yards. When I went to fire a couple of reloads, I noticed they ended up several inches below the target. When I fired the third reloaded round I noticed a very slight delay between the firing pin striking the primer and the round firing. This phenomenon did not occur when I fired another factory round, so I concluded it was a problem with my reloads. Here's the data for the reloads I was using: Primer: CCI-200 Large Rifle Primer Powder: Hodgdon H414, 54 Grains Bullet: Hornady 150 Grain SST Greatly appreciate any help! Thanks.