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Message
question about a 30.06/sighting in related...
Posted on 12/22/20 at 11:14 am
Posted on 12/22/20 at 11:14 am
I have a 30.06 sighted in 1/2 inch high at 100 yards with 165 grain bullet... ran out of the 165 grain, and all I can find right now is a box of 180 grain...
any ideas on how the 180 grain will effect/change the shooting, versus the 165 grain, if at all? I would assume I would need to re-sight it in?
any ideas on how the 180 grain will effect/change the shooting, versus the 165 grain, if at all? I would assume I would need to re-sight it in?
13
Posted on 12/22/20 at 11:16 am to j4lsu
You need to re-sight if you are shooting any distance past 100 yards.
It likely shoots lower, but could very well group left or right of the original loading, and may not group at all.
Would I feel ok hunting with it from a hundred yards and in? Sure.
It likely shoots lower, but could very well group left or right of the original loading, and may not group at all.
Would I feel ok hunting with it from a hundred yards and in? Sure.
Posted on 12/22/20 at 11:18 am to j4lsu
You need a lot more info. Velocity of both rounds, scope off set, and bullet data
Best thing is go shoot it and find out exactly where the new round is at.
Best thing is go shoot it and find out exactly where the new round is at.
Posted on 12/22/20 at 11:18 am to j4lsu
You will definitely need to re-site. It will likely be hitting lower but how much is gonna depend a lot on the powder charge. Could be an inch or two, could be a foot.
Posted on 12/22/20 at 11:18 am to j4lsu
Yes you must confirm and potentially rezero.
97% chance it will be at a minimum of 2-6in off and not just low like tin would assume.
97% chance it will be at a minimum of 2-6in off and not just low like tin would assume.
Posted on 12/22/20 at 11:19 am to j4lsu
Check it. Sometimes the difference between loads isn't just vertical.
Posted on 12/22/20 at 11:22 am to j4lsu
There are ballistic apps (I have the Winchester one) that let you enter in various bullets/weights/calibers/etc and compare. Not the same as actual range time, but can give you an idea
In your situation, there probably won’t be a ton of change until you get out to 200,300 yards. But I’d reshoot it just to be safe
In your situation, there probably won’t be a ton of change until you get out to 200,300 yards. But I’d reshoot it just to be safe
Posted on 12/22/20 at 11:27 am to j4lsu
thanks everyone for the ideas and info... I will definitely re-sight it; I was just looking for some info and I appreciate it....
Posted on 12/22/20 at 11:37 am to j4lsu
Shoot once for peace of mind. Adjust as needed.
Posted on 12/22/20 at 11:39 am to j4lsu
I shoot a .306 168 ballistic silver tip my brother shoots a .306 180 grain silver tip. We were done at the range this past august and decided to run each other’s thru just in case we couldn’t get ammo. No difference at 100 or 150 yards the 180 grain dropped 1/4 inch at 200 yards. I would still sight it in just passing some info along, also two different guns.
Posted on 12/22/20 at 12:17 pm to geauxtigs99
Yeah I would definitely shoot a couple, but chances are for hunting at under 250 yards you are likely more then fine and it will only be an inch or so off at most.
Posted on 12/22/20 at 12:44 pm to TheDrunkenTigah
quote:
could be a foot.
C'mon man...
Posted on 12/22/20 at 2:12 pm to j4lsu
I shoot 150 gr 30.06 and sight in dead on at 25 yards. That will be 1.8” high @ 100 yards, dead on @ 200 yards and 8.2 low @ 300.
That will kill anything in the SE!
That will kill anything in the SE!
Posted on 12/22/20 at 2:42 pm to rlp
quote:
C'mon man...
My 35 whelen sees almost a 10” range in POI from various ammo. It actually shoots a lighter Barnes low, because I suspect it can’t stabilize them. In all likelihood the change will be minimal in a 30-06 since he’s in the wheelhouse of normal bullet weight, but there is just no way to know how that load is going to perform in his barrel, or how this new one is loaded.
Posted on 12/22/20 at 3:33 pm to j4lsu
Yes, you should probably re-sight it. But if you don’t have time before a hunt, I wouldn’t sweat it much. Probably still will be fine out to three hundred yards or so.
This post was edited on 12/22/20 at 3:34 pm
Posted on 12/22/20 at 4:42 pm to NoMoreKnees
25 yard sight in is not a good idea.
Posted on 12/22/20 at 6:33 pm to 257WBY
Its what the national guard does baw
Posted on 12/22/20 at 6:34 pm to j4lsu
quote:
I have a 30.06 sighted in 1/2 inch high at 100 yards with 165 grain bullet... ran out of the 165 grain, and all I can find right now is a box of 180 grain... any ideas on how the 180 grain will effect/change the shooting, versus the 165 grain, if at all? I would assume I would need to re-sight it in?
deer/big game hunting, say inside of 200 yards, and the same or similar bullet, no worries- fire away.
This post was edited on 12/22/20 at 6:35 pm
Posted on 12/22/20 at 7:26 pm to DownshiftAndFloorIt
Do the national Guard snipers sight in at 25 yards?
Posted on 12/22/20 at 7:48 pm to 257WBY
Probably not- but the regular infantry men are shooting 300 meters open sight like that.
So, what’s your worry?
So, what’s your worry?
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