Short Range Zero For Long Range Accuracy - NSSF Shooting Sportscast

[BassmanSW]

A 25 yard zero with a 55gr PSP bullet will allow for the bullet's trajectory to cross your point of aim again at 250 yards. Anywhere between 25 and 250 there will be a deviation of no more than 3-3/4" and that's 3-3/4" high at 150 yards. So even with a 25 yard zero, your rifle will be just under 5" low at 313 yards. This is well within most people's capabilities with iron sights.

[ssdsurf]

Just to be clear for the viewers, the IBZ is a 50 yard / 200 meter zero. Most grains / loads of .223 / 5.56 when zero'd at 50 yards will have a second crossing of the line of sight at around 218-219 yards or so, which is where the 200 meters comes from. Most non magnified battle grade AR/M4's and shooters might not see a difference but a precision rig with good glass will show the difference. Can be a definite hit or miss difference if you taking head sized shots at 200 yards.

[GriffGruff78]

@ssdsurf Wouldn't that be more like a "shoot at the mouth, hit the nose" type difference?

[ssdsurf]

@GriffGruff78

Not sure what your point is? I am just guessing but the way it reads it looks as if you might suggest that ballparking information is not a big deal? Try ballparking numbers at longer ranges. Perhaps 600m or so. Also there are many people pulling triggers where and inch or two makes a huge difference.

[GriffGruff78]

@ssdsurf I'm not trying to be snarky, it's just that I don't think that your point of impact would change more than and inch and a half between 200 yards and 200 meters. For a head-sized target at 200 yards that isn't very significant. If you're trying to kill a cantelope, a 50 yard zero will kill that cantelope with a center-mass hold from 0-250 yards. If you want to hit the 10 ring at 600 that's definitely different, but that wasn't within the scope of your comment.

[ssdsurf]

@GriffGruff78

You must realize that "within the scope" of my original comment is limited to only so many words by default of youtube. I could not possibly cover every issue in the space provided. Is it difficult for a professional training organization to relay proper and accurate information on the 50y/200m Improved Battle Sight Zero? Call me crazy, but I would consider zero information to be a pretty critical aspect firearms in general and vital when it comes rifles.

[GriffGruff78]

@ssdsurf I definitely don't think you're crazy, I may just be less inclined to nit pick over what amounts to a maximum-point-blank zero for shooting minute-of-dinner plate. To my mind, the external ballistics beyond 200 yards (or meters) will be completely moot for >99% of shooters and if you need precision at longer ranges you're probably not looking for help by searching "how to zero your AR" on YouTube.

[ssdsurf]

@GriffGruff78

The difference in POI from 200y to 220y would be well within point blank zero on a dinner sized plate and nowhere near max PBZ. Well what the heck, if we just wanted to be within "max" of a dinner sized plate, say an 8" plate, then we could easily call the zero a "50y / anywhere from 200 - 300y good enough for government work zero". We would still be right around max PBZ on a dinner sized plate at even 300 yards. Why shouldn't we just give more accurate info? 

[GriffGruff78]

@ssdsurf I hear you, but 50/200 really is good enough for governemnt work - right?

[SeedyNotions]

Thumbs up if you thought 'Bob' was Stone Cold Steve Austin...

[sthomas1018]

It would be nice to see the actual zero process. A picture is worth a thousand words!

[SeedyNotions]

@sthomas1018 If a picture is worth a thousand words, then these new "moving pictures" must be worth volumes.

[dcselwitz]

EXCELLENT info. Thank you.

[8ball29]

I was expecting to see a rifle being zeroed, kinda disappointing. Good tip none the less.