QUICK... NEED RETICLE ADJUSTMENT NUMBERS....

[daniel brothers]

My friend just called me and said that he shot his 300 win mag at his 30 & 50 yd spots to check his scope settings... and they are way off... and I can't think for the life of me exactly how many clicks he needs to adjust. Here is the deal.... the scope is 1/4 clicks... bullets hit 1 1/2" - 2 " low at 30 yds... and about the same at 50 yds. The ballistic caculator says bullets need to impact at 0.32 LOW at 30 yds.... and 0.48 HIGH at 50 yds for a 250 yd zero... that would make it 1.87 high at 100 yds.

I'm thinking that scope clicks at 50 yds need to be double that of 100 yds... so I think he will have to come up 16 clicks for 2 inches...?

 

[Rob01]

At 50 they will be half of 100 if you are adjusting in linear so if they move POI 1/4" at 100 then they move POI 1/8" at 50 yards so you would need to double the amount needed to move if using linear from 100. So if he needs to move up 1.5-2" at 50 it would be about 3-4 MOA. What scope is he using?

If his scope has a reticle that is in the same graduations as the knobs then use it like a ruler and it will tell you how far you need to move.

When you say .32 low is that in MOA, inches, mils?

 

[jepp2]

and 0.48 HIGH at 50 yds for a 250 yd zero... that would make it 1.87 high at 250 yds.

I don't understand this statement. You lost me at 250 yd. zero, 1.87 high at 250. But as explained, just make twice the adjustment for 50 yards.

 

[hogpatrol]

Fire three shots. While holding reticle on original point of aim, move crosshairs to center of point of impact group. Shoot again to verify.

 

[daniel brothers]

LOL... I meant 1.87 in high at 100 yds.

MOA .... inches.

He can't shoot it tonight, but he wants a rough adjustment amount so he can go hunting in the morning.

 

[Rob01]

MOA is not inches but at those short ranges it's close enough. Tell him to go up 3-4 MOA for that 50 yard if he is 1.5-2 low.

 

[daniel brothers]

Well... as it turns out.... he is going to shoot his tikka 7mag in the morning and shoot his 300 later in the day... so I got all panic for nothing... but thanks so much for help...I knew you guys would come through.... Dan

 

[coyyote]

Maybe its just me but if I want my rifle zeroed at 100 or 200, or whatever, I damn sure shoot it at that range to confirm zero. I have had times when mounting a scope I shot the initial rounds at 25 or 50, did the little move the cross hair from the bull to the center of the group trick, and then at 100 or 200 found I was significantly off.

 

[daniel brothers]

that little tricks works great if you have the rifle anchored firmly at 100 yds or more.

I have successfully changed out scopes on zeroed in rifles by anchoring the rifle in a vise while the crosshairs were on a small target way out there... and then unscrew the scope top rings... install the other scope in its place... tighten the ring screws... then adjust the crosshairs back to that small aiming spot way out there... and it was always dead on pretty close... plenty close enough to hunt with until I verified it on a target.

 

[Mozella]

....... snip..........
He can't shoot it tonight, but he wants a rough adjustment amount so he can go hunting in the morning.

Tell your friend that if he's gonna' shoot at one of God's little furry creatures, he has a moral obligation to kill it cleanly. If he's too busy to zero his scope how can he justify going into the field with a "rough adjustment"?

He should either hire someone to set up his rifle properly or stay home. Wounding animals is not supposed to be part of the sport of hunting.

 

[daniel brothers]

Moz.... this thread is two weeks old... we checked it the next morning.... it was on the money after we got done with it.