Scope Tracking Test. Set Up?

[Endyo]

I'm setting up a scope tracking test. I've done one or two before but after speaking to a CS rep I wanted to structure the test to rule out any external variables.

The Rep recommended strapping the rifle down to the bench, using a grid target, going up 10MOA and down 10MOA which would equate to roughly 10.5" @ 100 yards.

The suggestion was to adjust parallax than visualize where the crosshairs were on the grid before and after the 10MOA adjustments.

The rep relayed that a visual check would be more accurate than firing shots.

The benches at my local range are thick solid concrete. There's nothing to hook into with tie-down straps.

Tips or ideas on strapping the rifle down to bench? I have a solid front rest and a rear sandbag. I don't have a Tipton gun vise as the REP relayed he used and C-Clamps likely won't work in my situation.

 

[mac86951]

Sorry, I had a lengthy response, but I'll spare the details. Question, what are you trying to test?

 

[Dusty Stevens]

Put the forend flat on the bench with the triggerguard back hanging off and c clamp it. First things first if your rest wont let you do this you need a new rest setup.

 

[bigngreen]

I remove the optic and mount them to a steel plate with a rail on it and leveling screws that will set dead on a bench then I set a 1 inch grid up at 300 ft to the center of the turret. I run the optiç through its entire range taking a measurement of travel every 10 moa to get a turret calibration factor since a lot of what I build is intended for ranges that max out most optics turret calibration is critical. A 10 moa box test won't show you much on a decent optic, IMO!

 

[expiper]

op,,,,I pay more attention to where the bullet goes after a change on turrets and will it go up ~30 moa (enuff for 1000 yds ,,plus a lil") and then right or left at leeast 10 moa and shoot it and then bak down and shoot it and the back over and see it it shoots in the same hole !!!...and also does it settle down immediately at each corner of the "box" test or does it take a shot or two or three to settle in,,,,a "good " scope will work just like a piece of machinery ,,,and a poor/fair/mediocre/worthless scope will wander all over the place,,,,Roger

 

[Endyo]

Put the forend flat on the bench with the triggerguard back hanging off and c clamp it. First things first if your rest wont let you do this you need a new rest setup.

Dusty, I never thought of putting the rifle on to the bench.

What are you actually C-clamping?

To answer above I'm testing the mechanical function of the scope. I want to see how true the scope tracks.

 

[Endyo]

I remove the optic and mount them to a steel plate with a rail on it and leveling screws that will set dead on a bench then I set a 1 inch grid up at 300 ft to the center of the turret. I run the optiç through its entire range taking a measurement of travel every 10 moa to get a turret calibration factor since a lot of what I build is intended for ranges that max out most optics turret calibration is critical. A 10 moa box test won't show you much on a decent optic, IMO!

Thank you for the feedback. I've considered removing the optic but without a custom mount to lock it in to I wouldn't be able to get it very stable. :/ I'm hoping to be able to accomplish my test without the need.

You presented a good suggestion testing the full range of travel. I'll have to get a bigger board!

 

[Dusty Stevens]

Hollow out a board thatll hit the stock but not the barrel then put a clamp on it and under the bench.