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> Sighting In A .270, how high at 100 yards?
ccoutdoorlife
post Nov 14 2007, 01:31 AM
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hey guys,

i'm helping a friend sight in a new .270. he has a 3x9x40 scope and "see through" scope mounts. how high should the bullet be at 100 yards? he has 150 and 170 grain bullets. should we zero it a 50 yards or 100? i don't have a .270 so i'm a little unsure.


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mtabeliever
post Nov 14 2007, 02:38 AM
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QUOTE(ccoutdoorlife @ Nov 13 2007, 08:31 PM) *

hey guys,

i'm helping a friend sight in a new .270. he has a 3x9x40 scope and "see through" scope mounts. how high should the bullet be at 100 yards? he has 150 and 170 grain bullets. should we zero it a 50 yards or 100? i don't have a .270 so i'm a little unsure.



Firstly, you should decide on what range you're going to be shooting in and will the need for greater than 100 yard shots be available to him. I sight in my guns at 100 yards and try to be within 1 inch high at best. I'd also say that he could stay with 150 gr bullets and get all the velocity and travel he needs. The extra 20 gr won't matter much at 100 yds. Also, I literally just bought a sight stand ($40 at Gander Mtn) for better accuracy in dialing in the gun. Last year I sighted in my 30-06 at 100 yds on open sights and kept the grouping within 2-3 inches of each other. This year I'm also using a 3x9x40 scope and have tightened up to within 1 inch.

Good hunting!
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wmramse
post Nov 14 2007, 04:17 PM
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I don't know of any 170gr bullets for a .270. Doesn't mean they don't exist, but I've never heard of them (except for cast lead). A .270 with 130gr bullets, sighted in at 1" high @ 100 yards, will give you a max point blank range (i.e. no holdover) of roughly 250 yards. If it's an automatic or has a barrel shorter than 22" then figure 200 yards, tops. Beyond that, the bullet will drop enough that you'll have to hold over a bit. As MTA said, where he needs to have it zeroed depends on how far he wants to shoot.


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varhunter
post Nov 14 2007, 05:27 PM
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We sight all our rifles in to 3 inches high at 100. We hunt the open country of south central Montana so you can see why we'ed need to reach out there and touch something. I'm pretty sure my dad shoots 150's and they shoot awsome out of his rifle. Sometimes he's not so hot though. lol.
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Soonefan8149
post Nov 14 2007, 06:15 PM
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I would sight it in at 1" high. That should be plenty for deer hunting


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6x6rack
post Nov 15 2007, 03:42 AM
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I sighted mine in at 100 yards, and havent had any problems.
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nchawkeye
post Nov 15 2007, 04:07 PM
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First get him to throw away the see through mounts, they will give trouble holding zero, trust me on this...For some reason they are popular here in NC...Go with Dual Dovetail Leupolds or the Dead Nutz...If its raining he can put flip up scope covers on the scope...

Second, go to 130 gr bullets, my brother uses the Federal Premium Sierra SPBTs and they do a good job...

I sight in my brother's and friends center fire rifles 2 inches high at 100 yards...The gun will be 1 inch high at 50, 2 inches high at 100, 2 1/4 high at 150, 1 inch high at 200 and dead on again at 225 and about 2 inches low at 250....That's as far as most guys need to shoot...

I hunt a lot down east over bean fields, I shoot a .243...I sight in 2 1/2 high at 100 and I'm dead on at 250 and 3-4 inches low at 300....When I'm hunting the woods, where shots are within 50 yards the gun is only shooting about 1-1 1/2 inch high at 50 yards and you will never know the difference on a deer....

Sighting in a .270 dead on at 100 yards is like having rabbit ears on your TV, you are not using the full potential of the round...
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gobble_head
post Nov 16 2007, 12:08 AM
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I agree with hawkeye throwaway the see-thrus and go wiyh 2-3" high at 100 yards.
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ccoutdoorlife
post Nov 16 2007, 03:14 AM
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thanks for all the advice. this guy doesn't take hunting or shooting very seriously. he's wanting to sight the gun in on sunday and rifle season opens in wv on monday. blink.gif his max shooting range will be about 100 yards. i have advised him to get rid of the see through scope mounts because i know what a pain in the back side they can be. i've also advised him to spend a little more time on the range thoughout the year. he takes none of this advice to heart. he recently bought the scope and mounts and has no idea how to zero a rifle. i personally don't know what kind of bullets he has. those are what he said he had. he'll go out for about an hour or two each morning and if he sees a buck he wants to be able to hit it but as far as great shooting goes, he has no real interest to learn.


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BearTrackFarms
post Nov 19 2007, 01:20 PM
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the difference between 50 and 100 yards will be minimal at most...I sight mine in at 50 and I am only an inch off at 100


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