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Old 11-05-2010, 07:32 AM   post #1 of 30
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Default Holding your zero past what you sighted it in for.

I was zeroing in a new (won at raffle, YEAH) Weatherby Vanguard .300 win mag it at 100 yards. Got it dead on bullseye. Now what kind of group can I expect when I go out lets say 250 yards. I am sure the scope power has alot to do with it.

I also zeroed in my Remington 541-T HB (best rifle I have ever owned) at 50 yards an again got it dead on bullseye. Had a group of 10 rounds within .75 inch of each other. I then tried to hit my target (a paper plate) at 100 yards and didn't even hit it. Can I attribute this to the .22LR round dropping?

I have been around guns my entire life but mostly handguns and rifles with iron sights. Any insight is appreciated.
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Old 11-05-2010, 08:29 AM   post #2 of 30
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Default Re: Holding your zero past what you sighted it in for.

From 50-100 yards, i wouldn't think you'd have that much drop, are you using LR or short?

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Old 11-05-2010, 08:55 AM   post #3 of 30
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Default Re: Holding your zero past what you sighted it in for.

They will drop and to help you find where you are hitting put a large piece of cardboard behind your target and shoot 3-5 times and go check it out. That's my trick anyway and works great but remember to tape your holes up every time you go check it out so you know your changes worked.
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Old 11-05-2010, 10:05 AM   post #4 of 30
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Default Re: Holding your zero past what you sighted it in for.

thats a great cartrige.I have the same gun in 7mag.that should only drop a inch or so at 250.best hold on where you want to hit at that range.as far as the 22 that should carry the one hundred yards no problem.if I had to choose one rifle the 22 would be it.don,t sell that little thing short.
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Old 11-05-2010, 11:27 AM   post #5 of 30
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Default Re: Holding your zero past what you sighted it in for.

Why would one sight in a .300 win mag at 100 yards? Sight it in at 250 to start with.

250zero -1.5" .08" 2.1" 2.5" 1.9" zero -3.2" -7.8" -14.1" -22.2" -32.4"http://www.udarrell.com/300-winchester-magnum-150.htm
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Old 11-05-2010, 01:22 PM   post #6 of 30
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Default Re: Holding your zero past what you sighted it in for.

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Originally Posted by marlboro180 View Post
Why would one sight in a .300 win mag at 100 yards? Sight it in at 250 to start with.

250zero -1.5" .08" 2.1" 2.5" 1.9" zero -3.2" -7.8" -14.1" -22.2" -32.4"http://www.udarrell.com/300-winchester-magnum-150.htm
200 at the very least..
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Old 11-05-2010, 03:52 PM   post #7 of 30
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Default Re: Holding your zero past what you sighted it in for.

I generally sight all my high power rifles in at 1 inch high at 200 yards. With that, you can hold dead on a deer sized from point blank range out to 300 yards and not have to adjust your hold. That works well for Western Pa, 300 yards is an extemely long shot around here, out west, it's another story. I shoot only reloads, and most reloading manuals have very good trajectory charts in them. Hornady is my favorite. If you know your ammunitions velocity and the grain weight of your bullet you can find the best "zero" for your rifle. With a .270 140 grain boattail traveling around 2900 fps for example, 1 inch high at 200 yards puts you roughly 3 1/2 inches low at 300 yards, and around 2 inches high at 100 yards. Well within the kill zone if your hold was dead center of the chest. This will vary between bullet types and loads. Best to try your rifle out with the ammunition you'll be shooting and see exactly where you are. Your .300 will be a little different, but should be in the ballpark.
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Old 11-05-2010, 09:12 PM   post #8 of 30
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Default Re: Holding your zero past what you sighted it in for.

I have been shooting a Browning 300 win mag since I was 16. I sight it in at 3" high at 100 yds, making it darn close to dead on at 200 yds with rem 180 grain NP. I have a 6.5 to 20 by 50 mm Leupold scope, but have only used max magnification for one 430 yd shot in the upper peninsula of MI. Groups depend on the shooter the most, then the gun and ammunition. With the Remington ammunition I get groups that stack holes out to 300 yds regularly. I have had two rifles that were the same and have one shoot great and one only good. I have gotten really lucky with the groups that my gun will hold.
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Old 11-06-2010, 08:16 AM   post #9 of 30
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Default Re: Holding your zero past what you sighted it in for.

one thing I,ve learned over the years with ammo.every company makes there rounds alittle different.try three different brands of ammo.one will group alot better than the rest.guns are all individuals.just like people.
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Old 11-07-2010, 05:41 PM   post #10 of 30
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Default Re: Holding your zero past what you sighted it in for.

Try using a ballistics calculator like this one for the ammo you plan to use. http://www.biggameinfo.com/index.asp...=/balcalc.ascxSome study will show you some good reasons for not sighting in a 300 mag at 100 yards. Fer instance, if zeroed in at 100 yards using data I tried, your bullet would drop 3 inches at 200 yards and 11.3 inches at 300 yards. If instead, you zeroed at 250 yards, the bullet would hit 2.6 inches high at 100 and 3.6 inches low at 300 yards. That gives a trajectory that can hit an elk anywhere within that range without adjustment of your sight picture. Also check out "maximum point blank range". This is an optimum range for any given caliber that allows for this type of non-adjustment sight-in. (it's not shooting something so close you can't miss)

As for your .22, using the same calculator with some ammo I have here gives the following: when zeroed at 50 yards, a 100 yard shot will be 4.5" low - easily missing an 8-inch pie plate. it drops off drastically after that -9.2" at 125 yds and -15.5" at 150 yds.

Hope you can put that magnum to use where that kind of firepower is useful. Plan an elk hunting trip in the mountains!

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Old 11-07-2010, 11:18 PM   post #11 of 30
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Default Re: Holding your zero past what you sighted it in for.

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Old 11-08-2010, 08:02 AM   post #12 of 30
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Default Re: Holding your zero past what you sighted it in for.

Quote:
Originally Posted by gray wolf View Post
if I had to choose one rifle the 22 would be it.don,t sell that little thing short.
Are you going to hunt deer with a .22?
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Old 11-08-2010, 10:44 AM   post #13 of 30
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Default Re: Holding your zero past what you sighted it in for.

Hey Grasshopper- Try this software out from Remington. Pretty handy to get you in the ballpark..


http://www.remington.com/pages/news-...allistics.aspx
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Old 11-08-2010, 08:49 PM   post #14 of 30
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Default Re: Holding your zero past what you sighted it in for.

There have been many deer killed with a .22, not my preferred caliber though!
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Old 11-09-2010, 09:06 AM   post #15 of 30
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Default Re: Holding your zero past what you sighted it in for.

getting back to this.yes to answer lilys dads ?.yes if it was legal I would shoot the 22 rifle for deer.last evening going to my place where I hunt.I walked up on a 4 pt .within fifty yds.I did,nt shoot that deer but with a 22 rifle he would of dropped right there.I think if everyone used a 22 there would,nt be so many people getting shot.simply because shots would only be taken at lest than 100 yards.you really don,t need a canon to kill deer.suffice it to say. I know from alot of experience.
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