Sam Norton
New member
My Model 7 in 7-08 cal., 20" stainless with synthetic stock is at last a 7.2 scoped weight 1" shooter. After a three year ordeal It is finally finished. Out of the box 4 kinds of hunting ammo 1.5 to 3 groups; after bedding, filling the hollow stock with spray foam to quite it down, a trigger job, a trip to 300 below for the barrel and receiver. The groups went down to 2 3/4 to 1 1/4. I then tried very carefully made reloads with only a little improvement
At this point I took a closer look at the crown with a 10x opti visor. When the barrel was crowned at the factory the tool was off center. I had what turn out to be .003 of lands removed down 1/8 at the end of the barrel also the chamfer was off .005 from center of the bore. After removing 1/8 and recrowning. My groups shrank to 1 1/8 to 1 3/4. With definite stringing and 2 cluster groups. Also my tasco world class scope puked. At this point I went with pillar bedding and then rebeded it, readjusted the trigger to a true 3 lbs. with almost no overtravel or creep and changed to a 3x9 Vari X II scope. My first trip to the range last Sunday 2 out of 3 factory loads grouped 5/8, the other 1 1/2. Now its time to work on the nut holding the gun. I hope this helps others.
Regards
Sam
At this point I took a closer look at the crown with a 10x opti visor. When the barrel was crowned at the factory the tool was off center. I had what turn out to be .003 of lands removed down 1/8 at the end of the barrel also the chamfer was off .005 from center of the bore. After removing 1/8 and recrowning. My groups shrank to 1 1/8 to 1 3/4. With definite stringing and 2 cluster groups. Also my tasco world class scope puked. At this point I went with pillar bedding and then rebeded it, readjusted the trigger to a true 3 lbs. with almost no overtravel or creep and changed to a 3x9 Vari X II scope. My first trip to the range last Sunday 2 out of 3 factory loads grouped 5/8, the other 1 1/2. Now its time to work on the nut holding the gun. I hope this helps others.
Regards
Sam