Why Register?Signing up could earn you gear (click here to learn how)! It also keeps offensive content off our site.
Welcome to Field & Stream!
Question by WA Mtnhunter. Uploaded on November 04, 2010
I use MPBR for all my high power rifles. I like to keep things simple and I believe this is one way to do that. The longer you can keep a sight picture; the less thinking you have to do and the better your odds are for making a good shot.
It makes a lot of sense but I usually zero my rifles at 200 yards since most of my shots come between 50 and 200. These are flat shooting rifles like the .223, 25-06 and .300 Dakota. I zero my .375 H&H at 100 yards.
My .30-06 is currently zeroed at 125 yards. Not for any specific technical reason. I wanted 150, but that was the limit of our range.
I am familiar with the MPBR. My -06 with a 200 yd zero has a MPBR of about 275 +/- i think. I took a good buck (one shot)a few years ago at 287yd with a center body hold, thinking it more like 250. Lucky me that time. My shots never exceed that range.
Assuming that the kill zone on a deer is about eight inches in diameter, one would have to print about four inches high at 100 yards to achieve MPBR zero with modern caliber rifles.
This would not be ideal for an eastern thick woods hunter likely to encounter deer at close range.
Actually I start on the bench/taigate/hood to zero in at 200 yards. Then I go afield and fine tune the elevation to match my Kentucky Windage for long range and I might come down or go up an inch or two.
My rule of thumb has been 3" high at 100 yards for many years in 7mm Rem Mag. It seems to take care of most hunting situations. I get MPBR all the way out to about 275 yards in terms of a 6' kill zone. If I know I am going to be shooting further, then its off to the range for some additional work.
Whare I hunt Dead Nuts at 100yd that my max range for My 7mm/08 from my T~Stand over looking a food plot and a max of 65yd in the woods, when on a drive with my Ruger 44Mag Auto,Dead on at 75yd when walking in the swamps.
Down here in the piney woods MPBR is usually about 35 yards! LOL! My pasture rifles are zeroed at 200 and that provides me with a very usable point blank range. It's hard to find a shot over 200-250 in my area.
Until recently I used MPBR. Now the new scopes with multi crosshairs call for a 200 yd zero. That is what I use on 2 of my rifles.
Don't understand why WAM, of all people, would ask such a question? BUT, it's a great question!
I sight my .270 to shoot approximately 2 inches high at one hundred yards. This puts me right back to dead on at about 225 yards. Out to almost 300 yards, it's pretty much hold dead on. If I have a range finder, from 300 to 325, I'll align horizontal crosshair with deer's spine.
Actually, no! I just don't shoot beyond 250 yards. It's not the rifle, it's me!
A most important lesson to learn in life. KNOW your limitations.
I didn't say accept them! Work and practice can extend limitations.
Just because the firearm can shoot a bullet over a mile, doesn't mean you need to start banging at deer at that range!
WAM, I have used it in the past. In .30-06, I chronographed, plugged in my MV to an on-line ballistics database, and 254 yd was the internet machine's adjusted zero for a MPBR of 296 yards. I zeroed in at 250 (In a 3.5" group). It fugured to be about 2.5" high at 100 yards. It was relatively close, as patterns go, but I've since switched back to a 200 yd zero.
I use a mpbr zero on my .270 win. It has a mpbr of 305 yards and since I hunt elk in the mountains of Colorado and have never shoot anything under 200 yards the mpbr works well because I don't know the distance I will be shooting. On my 30-06 I have a bullet drop compensator scope by Nikon. It works really well with its zero is 100 yards and provides bullet drop for a given distance. More important when zeroing a rifle is where you will be hunting. If you have the possibility of shooting an animal anywhere from 0 to 300 or 400 yards out than an mpbr works amazingly well. The problem when hunting at long range with a 100 or 200 zero is miss judging distance and over or under compensating for bullet drop and consequently completely missing or even injuring an animal that you are unable to recover. A mpbr helps eliminate error in judgment of distance. Furthermore, as beekeeper pointed out, a fixed zero like 100 or 200 yards works well (better than mpbr) if you are sure to only shoot within that distance.
Fieldandstream.com is part of the Field & Stream Network, a division of Bonnier Corporation.
Copyright © 2012 Bonnier Corp. All Rights Reserved. Reproduction in whole or in part without permission is prohibited.