Firing my brand new CSD Nitro rifle, Shilen R barrel with a Stiller Tuner and FF 2.0 Whisper trigger , with various lots of reasonable good ammo , I do get the phonomenen that it will put up to seven/eight rounds in the exact same hole and then one will leak out as per the pictures with Lapua M+ 305/295/285/275 and Tennex 1069fps. Where do I start looking to fix this issue without shooting hundreds of rounds away .Please help