Thanks every one for the responses,
sounds like the seating depth is where I should be starting, when I first setup the load i did the bullet in chamber with slight preassure and cleaning rod down barrel, and did the lose neck thing to confirm where the lands were, so I'm confident of thos measurements, just set my load up to close by the sound of it.
I only shot to 400 to confirm that velocity but the bullet was dropping allot more than the ballistics calculator was saying for a velocity of 2700.
I need to load some more up any way so do I need to back the load off at all seating deeper or just stick with the same and alter the seating depth.
Also as @veitnamcam said if the preassure and velocity are higher because of close seating depth is this a better way of achieving velocity or seating deeper and using more powder? This isn't something I even new existed with reloading (I am fairly new to it) I thought seating depth only changed accuracy.
The accuracy is spot on averaging around .75-1 inch off a good solid rest so I am hesitant to change things but I got into reloading to try get the most out of this case and I might as well be shooting the factory loads at thos velocities, I'm trying to shoot longer ranges.
Thanks again.
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