FD brother brought out a Savage .270 that he reports typically shoots very small. He had to zero a brand new Vortex scope at 100. Two types of ammo, and Barnes did very well. Long story short he wanted to zero 1 1/2" high at 100. I helped glass for him, to get him there. Once we settled on the ammo producing consistent shooting, I asked if he wanted a 200 yard zero. He said yes, and that should be a 200 yard zero. I said OK, you want to try and hit the plate at 200? Sure he says.

He held elevation center, and I told him what wind to hold with his duplex reticle. First shot did hit, at 6 o'clock, barely on the plate (4" square). I told him to bring up his elevation 1 MOA, and let's try again. Next shot was about 1/2 MOA high, but he said he could live with it.

I said, you want to try 300? Sure, he says. Then he said, it should be about 4" low, at 300. So I told him the plate was a 6", and if he held on the top edge of it, he would almost have that 4" correction. Then I said, "find where that would be on the reticle, not on the target". He understood, and figured halfway down from center to the post would get it done. First shot was elevation perfect, left wind error, but still on the plate.

So, quickly it was determined that the 100 yard zero was not in fact perfectly set up for a 200 yard zero, and not a no elevation hold for 300. And effectively we zeroed the scope for 200 yards. The 300 yard shot, had it been held center would have missed low, by 6". He held an elevation, and wind correction to get elevation to be correct. We did not retest the ammo, back at 100 yards, unfortunately. But, if the scope/rifle/ ammo were behaving consistently then his 100 yard zero would have been 2 1/2" high.

I concur however, I'm not much on MPBR but some of the guys that come through the shop talk alot about sighting in 1'' or whatever high at 100 to be able to hold center mass and hit at 300. I usually refrain from elaborating, tried it before and had to demonstrate to prove the point.

1" high at 100 would have been a significantly low miss at 300. 1 1/2" high at 100 was almost a miss at 200. Course everyone has a half MOA rifle, and we were shooting 2 MOA steel, which is considered smaller than whitetail vitals.

Apparently not many understand the MPBR concept.

There's more to it than simply sighting in an inch or inch and a half high, no matter what you are shooting.

What is Maximum Point-Blank Range Hunting?

Rifle Trajectory Table

This information will be educational for most, but not all. There is a famous quote about that:

"I can explain it for you, but I cannot comprehend it for you."

Properly understood and implemented, MPBR is an excellent tool for hunters everywhere.

Which is exactly why we then shot it at 200, then 300 yards.

So did y'all find his mpbr?

What was the muzzle velocity and ammo, out of curiosity?

Well that depends on target size. He could've hit a house door without making a hold for elevation.

Didn't have the good chronograph on location. Barnes factory ammo. Pretty cool seeing those shiny copper impacts on steel through the spotting scope.

Ok. 2.5" @ 100 would have been about where I started if it were me, with typical 130gr .270 ammo.

In other words, you have no clue as to the meaning of MPBR - but you feel qualified to criticize it anyway.

This could get out of hand

- Or a few hunters here could learn something useful.

So you didn't help him find a good mpbr? Like how far he could shoot without going over 3" high and 3" low out to a certain distance ?

Here we go again.

I went around it, and helped him shoot smaller, and more reliably. Hold under at 100 yards halfway between center and the top heavy post. At 200 hold center. At 300, hold over halfway between center the the bottom post.

Why in the world should he hold center on everything from 100 to 300 when it is WRONG!

But to answer your question, for half a$$ed shooting 50-250 yards.

Just wondering

So by half-assed, do you mean killing deer, or a 2" piece of steel?

What's the size of a doe's brain stem? That's how I kill does, he may want to the same way.

Everybody around here will tout shot placement, shot placement, shot placement. Well, I helped him find where to hold the duplex reticle for perfect shot placement. Be it CNS or heart/ lungs.

You, or anyone else, will NEVER convince me shooting with a known error, and not correcting it, is the right thing to do.

How is it a known error if you shoot at various distances and know where the shot will hit? Not everyone can afford a zero-stop scope to dial elevation for every yard.

Know your equipment, know your limitations, and know your limitations with your equipment.

Fair enough. Then why do you go out of your way to convince others that it is wrong when it work for them?

Reading comprehension not so good.

Clearly you didn't see where I mentioned holds on a duplex reticle.

Nikon makes a scope with a Mil reticle and no reliable turrets. Friend of mine has one, and I ran his 7 Rem Mag out to 800, never dialing anything

I don't. Point being, go out, and find where your holds are in what ever scope you have. Thousands take for granted what is on the box of ammo, and never test it.