Combat Zero?

[DPC]

I have an SU-16 18" barrel with a Tac Point Red Dot sight set at 50 yrds. Dead on. At 100 yrds with 55gr bullet I have to aim about 10 inches low to hit a target becuase of rise of the bullet. Is this a good zero for combat or would a 100 yrd zero be more effective and why?

[dieselpower]

I have an SU-16 18" barrel with a Tac Point Red Dot sight set at 50 yrds. Dead on. At 100 yrds with 55gr bullet I have to aim about 10 inches low to hit a target becuase of rise of the bullet. Is this a good zero for combat or would a 100 yrd zero be more effective and why?

the 50 yard zero has a near flat trajectory out to about 230 yards.

if you have to aim 10" low you are zeroed at like 25yards.

[mixicus]

A 50 yard zero is a very nice 'combat zero'. Depending on how high your scope is over the bore, you should be +/-3" from 0 to around 250 yards with a 50yd zero.

If you are 10" high at 25 yards, you either have a very strange height mount or aren't zero'd where you think.

[1lostinspace]

0 at 50 you should be about 1.8 at 100 10" sounds crazy

[DPC]

I should have clarified I have a red dot site. And you mite be right because I remember sighting it in at Fish Canyon SGV gun club. Can't remember if it was 50 or 25 yrds. when I finished. Thank you for the info, will any of you be at the Burro Canyon Zombie Shoot? Maybe some of you guys can help me would much appreciate the info.