A friend (?) gave me a blued Rem 700 ML cause he couldn't get it to group to suit him. I can't get it to fire consistently. I'm using BH 209 and a Win. 209 primer.Primer fires fine every time, but ignition is about every other try. Everything is clean and clear ,so I'm a little perplexed. Also if it matters I'm using the factory breech plug and striker combo that came with the rifle ,new. Any suggestions?