7MM Sighting In Problem

[southpaw268888]

I purchased a 7mm encore barrel and went to sight it in this past weekend.  I am using the Talley one piece scope mounts and a good brand scope.  For some reason, everytime I would shoot, it would be way off of my prior shot.  I had a steady rest and was making good shots.  I am wondering if there is too much recoil for the one piece base and that is causing my problem.  Any other suggestions???

[mastrb]

Is it a 7mm rem. mag barrel or 7mm-08? My 7mm mag. won't shoot 150 grains, I switched to 175 grain and it tightened right up. What weight of bullet are you using?

[yooper77]

What is the cartridge?  Who's ammo, factory or reloads.

Difficult to say, could be the ammo, could be the scope or both.

yooper77

[southpaw268888]

I was using Winchester Super X 150 grain loads.   It is the 7mm Rem Mag barrel. 

[rpharder]

Have the muzzle checked. It may need the crown redone. It happened to me on a new contender barrel that I purchased years ago. The first time I shot it I couldn't keep it the paper at 25 yards. After the crown was cleaned up it was great.

[lonemeabuck]

TC RECOMMENDS 150GR FEDERAL POWER SHOK AMMO.

BUT I WOULD TRY AT LEAST 3-4 DIFFERENT BRANDS/WEIGHTS.

TALLEY ONE PIECE MOUNTS SHOULD BE ABLE TO HANDLE 7MM MAG WITHOUT PROBLEM.

I HAD SIMILAR PROBLEM WITH A 7MM MAG TC BARREL AND HAD TO RETURN IT TO TC (WHICH THEY REPLACED WITH A SHOOTER).