Shooting optics with rotation

[FLG8R]

Ok, so I got lucky at BRM3G and not so at a local match which required shooting rifle targets at distance, 150-200yds, with the rifle canted/rotated/through a port. Much advice about Point of aim and Point of impact has been given, but I wanted to know if anyone could explain it so I could understand. To avoid confusion, please reference the direction of the rifles tilt as clockwise/counter clockwise. Interested in where I need to aim when rotated at approx 45 degrees and at 90 degrees... Thanks for the help.

[recon215]

If your zero was at 100 or 200 you should aim dead center still. I am sure if I am mistaken others will let us know.

[Religious Shooter]

...no.

I have no idea why. But you will miss (unless the target is the side of a barn) with a regular hold.

[AlamoShooter]

its very basic math. scope line over the bore> = normally close to 2.5" above the bullet when it leaves the barrel.

you lay the gun on its side the bullet leaves your (line of site) 2.5 to the right of the scope when you lay the gun counter clockwise.

For a 200 yard sight-in your eye sees in a strait line = Line of Sight. the bullet must deal with gravity so for 200 yards the bullet will climb and fall into your sight in target. Normally about 4.5" at some point the bullet crosses the (Line Of Sight) so from the barrel to the target 200 yards away the bullet will rise and fall about 4.5"

I know that for the first 35 yards my bullet hits -Under- my scope center after that rite up to 200 yards the bullet will hit - Over- my scope center / Line Of Sight.

When the gun is lay ed on its side up to 35 yards the bullet will hit in the scope center as it moves to reach the (Line Of Sigh) after that gravity will pull the bullet down but the bullet continues on its path through the LOS. At 75 the bullet will hit about 2" to 3" to the left and 1/2" low at 150 yards the bullet will hit 9" +or- to the left and 3" low at 200 yards the bullet will hit!!! the same 4.5" low but !!! 12" to 15" to the left when the gun is lay ed on its left

Turn the gun to the Right and the bullet will keep moving to the right.

But I may not know nothing

[Religious Shooter]

[kurtm]

Close Jammie, real close, except when the rifle is laid on it's side the bullet doesn't "climb" as you are effectivly rotating the barrel from it's slight up angle (200 yd zero) to a horizontal position so you don't have any climb. Lets make this simple. No math No LOS/POA/POI!

For the rifle rotated clock wise (200 yards) aim a bit off the upper left shoulder, for counter clock aim a bit off the upper right shoulder....now isn't that easier than math? BTW this is real easy to find out by a day at the range! Go shoot and go see! KurtM

[Mickster]

You guys are spot on!

Rotate left, aim right.

Rotate right, aim left.

I was at that local match and it took a couple of shots to figure it out but after that it was bang, hit, bang, hit, bang hit on three 10" steel plates at 175, 215 and 225 yards.

[TRUBL]

Rotate left (homie style for you righties)......2 o'clock hold

Rotate right (homie style for you lefties)......10 o'clock hold

As for exact hold over's?......ya right!!! trial and error homie, trial and error

FYI.....I got it on the second shot, and saw some get it on the 1st.....others, well, 1/2 mag later.....gave up

(so ya....+1 on what LurtN said)

Tim