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Sat, 2010-12-11 17:59
#11
Don Fischer
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When you sight in for MPBR

When you sight in for MPBR you hold dead on all the way out to MPBR! Not to 400yds. Anything beyond the max range you have your rifle sighted in for it going to require hold over of some type. If you sight in for zero at 200yds, you then need to find out at what point you have to start holding over. Now if you do in fact sight in for zero at 200yds, you WILL have a MPBR of something. And it will probably be closer than what it could be. That means you start raising the sights sooner.

Here is the real truth. Used a BC for the 180gr partition gold and data from the 30-06 Ackley. I don't data it for the 180 accubond, won't be that much difference. Used a velocity of 2900fps for both methods, doable in the Nosler manual. Figures arrived at with Pact MK IV cronograph's computer. 8" target used for MPBR. I would be happy to re-do this with the 30-06 Springfield if you like. This only shows a comparision of sighting techniques.

200 yd zero  100 yds - +1.6"   200 yds - +.0"   300yds - -7.4"   400yds - -21"   500yds - -41.9"

MPBR 8" target   100yds-+3.3"  200yds-+3.4"  300yds -2.2"   400yds--14.1"   500yds--33.3"

Now I have done these balistic tables for my own rifles a lot using the same method and my number's for ranges and retained velocities match published balistics. In the above case I didn't have the right BC but, the same BC was used for both methods. So much for crap, crap, crap! Using the MPBR over zero at 200 gives you 7.6" less drop at 500yds! My computer will also give you remaining velocity at all those yds and I have the formular for remaining energy if you'd like it. If you';d like to use a different BC and velocity tell me what it is and I will be glad to dun it for you.

Have a nice day!

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Sat, 2010-12-11 18:55
#12
Don Fischer
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update prior post

Don Fischer wrote:

When you sight in for MPBR you hold dead on all the way out to MPBR! Not to 400yds. Anything beyond the max range you have your rifle sighted in for it going to require hold over of some type. If you sight in for zero at 200yds, you then need to find out at what point you have to start holding over. Now if you do in fact sight in for zero at 200yds, you WILL have a MPBR of something. And it will probably be closer than what it could be. That means you start raising the sights sooner.

Here is the real truth. Used a BC for the 180gr partition gold and data from the 30-06 Ackley. I don't data it for the 180 accubond, won't be that much difference. Used a velocity of 2900fps for both methods, doable in the Nosler manual. Figures arrived at with Pact MK IV cronograph's computer. 8" target used for MPBR. I would be happy to re-do this with the 30-06 Springfield if you like. This only shows a comparision of sighting techniques.

200 yd zero  100 yds - +1.6"   200 yds - +.0"   300yds - -7.4"   400yds - -21"   500yds - -41.9"

MPBR 8" target   100yds-+3.3"  200yds-+3.4"  300yds -2.2"   400yds--14.1"   500yds--33.3"

Now I have done these balistic tables for my own rifles a lot using the same method and my number's for ranges and retained velocities match published balistics. In the above case I didn't have the right BC but, the same BC was used for both methods. So much for crap, crap, crap! Using the MPBR over zero at 200 gives you 7.6" less drop at 500yds! My computer will also give you remaining velocity at all those yds and I have the formular for remaining energy if you'd like it. If you';d like to use a different BC and velocity tell me what it is and I will be glad to dun it for you.

Have a nice day!

Don't know how this post got up where it did. He's the numbers for a standard 30-06 Springfield. Changed the muzzle velocity to 2750 fps, only change.

200 yd zero  100yd-+1.9"  200yd-0  300yd- -8"  400rd--23.9  500yd--47.1

MPBR 8" target  1ooyd-3.4"  200yd-+29"  300yd--3.6"  400yd--17.5"500yd--39.8"

Befor calling BS on these, go out and shoot at these distences with a bullet of that wt, BC, cal and from a 30-06. Any error will be an error in your actual velocity vers a vel taken out of the Nosler manual.

 

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Wed, 2010-12-01 23:55
#13
steven_seamann
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1)i would sight it in a inch

1)i would sight it in a inch high at 100yds so from 100yds to 300yds you can hold dead on to the target and still get the kill shot.

2)i would get the 165 grain or the 180 grain

3)use the same round that you practice with even if its a cheap round its going to hit in a tight pattern, it all you have to do is sight it in for one certian round and make sure you use that round for the hunt so you get the same results.

hope this helps you Big smile

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Thu, 2010-12-09 11:25
#14
flyguyskt
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  this is the kind of info

 

 

this is the kind of info that is misleading...

1)i would sight it in a inch high at 100yds so from 100yds to 300yds you can hold dead on to the target and still get the kill shot.

look at the drop from 200 yrd zero(this would make about 1.8 inches high at 100) to a 300 yard shot -8.3 inches....that is getting awfully close to outside the kill zone...and at 400 yards it -24 inches.

you cannot sight in an 06 at any range and expect it to be accurate at 200 different yards plus or minus....period. you need to sight it in at SOME KNOW distance and build a ballistics chart from that point...if you plan to shoot 300 but might shoot 50....200 yrd zero is a good starter...

MPBR is a good way to do it as well but what happens when you are mpbr at 295 and then you want to shoot at 550yrds? if you dont know where your bullet is at 550 you are wasting ammo and risking wounding the animal...

KNOW YOUR GUN AND YOUR AMMO....shoot and  build a ballistics chart if you want to be a knowledgeable shooter 

 

 

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Thu, 2010-12-09 13:09
#15
groovy mike
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Don't shoot unless you practice the shot

I'm going to take a totally different tactic than all of the other answers posted here.  If you have not practiced shooting beyond 200 yards, you should not shoot at game at those distances.  You should never pull the trigger unless you are as sure as you can be of humanly and ethically killing the animal.  If you are not sure of your shot from having practiced at those ranges MULTIPLE times, you have no business shooting at, wounding, and losing a game animal. 

 

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Fri, 2010-12-10 17:11
#16
flyguyskt
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GROOVY MIKE...your point is

GROOVY MIKE...your point is exactly what i was trying to say with this statement:

KNOW YOUR GUN AND YOUR AMMO....shoot and  build a ballistics chart if you want to be a knowledgeable shooter 

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Sat, 2010-12-11 19:06
#17
Don Fischer
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study balistics first!

flyguyskt wrote:

GROOVY MIKE...your point is exactly what i was trying to say with this statement:

KNOW YOUR GUN AND YOUR AMMO....shoot and  build a ballistics chart if you want to be a knowledgeable shooter 

 

My friend, you need to do a lot more studying on balistics. See the top two posts on this page and compare the figure's for the difference in 200yd zero and MPBR. Compare what I got to what Federal posted and remember I have 50fps more velocity. Kind of scary isn't it? MPBR shoot's flatter to 500 yds!

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