Changing Ammo

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azhunter122

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Aug 16, 2008
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Arizona
Hi Everyone,

I had my rifle sighted in with 30-06 winchester super x power point bullets in 180 gr. I want to switch to the winchester supreme silvertip bullet in the same grains 180. I went to winchesters website and the ballistics are slightly different. Will I have to re sight in my rifle? Also is this a good choice for Mule deer in AZ if there are any hunters out their?
 
The two types of ammunition could have different trajectories or points of impact, so I'd sight the rifle in with what I intended to use in it. Once many years ago I watched a couple of guys shooting two brands of ammunition in an '06. Both shot equally well at 100 yards, but one grouped about 6" higher than the other.

It sure wouldn't hurt to fire a few rounds of the Supreme Silvertips to see if they shoot to the same POI. Better than finding out when you miss a big buck that they shoot to completely different places. :eek:
 
As mentioned, it's a good idea to zero your sights/scope with the ammo you intend to use.

Find a good shooting range. There are probably a few around in Northern Arizona. Or, find someone who owns land in a rural area where you have a completely safe shooting lane and place your targets. A safe, legal place to shoot is the main consideration.
 
I'll try it out, how can I accurately find 200 yds to shoot at?

There's a relatively simple way if you have an open space in which to shoot, but no means of measuring the distance. You can use your scopes field of view. For example, a 4x32 scope has a field of view of about 32' @ 100 yds. So, you drive two stakes 32' apart and back off until they're both just in the outer edges of the field of view of your scope. That'll be pretty close to 100 yds. If you want to shoot at 200, using the same scope, your field of view would be 64'.
Just check the specifications of your particualr scope to find its field of view.
35W
 
Or, you can measure your paces, and do the math to find out how many paces it takes to make 200 yards.

Not exact, but close enough for GooberMint work.

BTW: Two different factory loads will vary rarely shoot in the same place at 200 yards in most rifles.

It may be up, down, or sideways, but you can almost bet it will be in a different place.

rcmodel
 
I would verify POI with the new round. I have yet to find two different loads with the same POI in any caliber other than .22.
 
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