Posted: 8/18/2014 11:26:01 PM EDT
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Not really a dumb question but more of a noob question. I'm not a gun noob but I am a noob when it comes to using scopes so here goes. How long does it take to get a scope dialed in at 100 yards? I have several that have been sighted in at 30 yards, which should speed the process up I'm guessing, but have never actually been sighted in at 100 yards. As in shooting at paper, making adjustments to get it exactly where it needs to be? I realize this is sort of a dumb question but since I have several, well actually like 4 I think, and I haven't had the opportunity to do this in the last few years I'm guessing if I do get the opportunity I want to get as many done as possible. So let's say four rifles, how long should it take to get four rifles sighted in for someone without much experience doing that? I don't have a spotting scope, which I'm guessing would substantially speed things up but don't have one. I realize there are a lot of variables but should it be under an hour, an hour, a couple hours, all day?
I also have three .22LR rifles I need to sight in but those can wait until after the centerfire rifles but should they be sighted in at 50 yards? |
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Bore sight will put you on paper at 25 yds. You center at 25 yds (3 to 4 shots) then shoot to center at 100 yds (another 3to 5 rounds). Maybe 10 to 15 minutes to center a rifle taking your time and if you have no problems.
I set my centerfire rifles two to three inches high (POI over POA) at 100 yds. That gives me a 6 in impact area out to 250 yds. 22 rifle I would center at 25 yd because I live in the city. If I lived in the country I would center it at 50. |
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Since you've already got them zeroed at a short range it won't take long at all. I'd just go back to 100 and fire a 3-5 shot group. Retrieve your target, measure the POA vs POI discrepancy and count your clicks. Fire another group to double check. You should be able to get all four done in an hour.
22s I usually zero at 25 yards. Posted Via AR15.Com Mobile |
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Shouldnt take too long at all as mentioned...
Dont know if you know this or not, you didnt mention it...a little faster method to use-aim dead on at center of target using a grid style of target...shoot once, locate the impact hole, aim dead at first point of aim then adjust the reticles to the center of first impact hole, shoot again. If it is way off the first round, that will get you loads closer to the center for your normal 3 round group, look, adjust and subsequent 3 round group. I used this in all my hunting rifles, and most i was able to get sight in with about 5-6 rounds. Being the big pain sissy that i am, the .30-06 with no rubber recoil pads..i was good for about 14 rounds before i started whining and asking for cheese. That was using hand loads of above average charges, toward upper end of specs. I woke up sick with i think a sinus infection so my head is more cloudy then normal, so if this dont make sense the way i explained it, iam sure someone else can clarify it better. PS..how come you cant ever go shooting? |
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Depends on the situation.
For example: Last year had a new 18 inch AR and new scope, I pre-sighted using barel laser sight in my back yard at approximately 40 yards.. The next day ran down to Lexington WMA during lunch, zero'd in at 100 yard, and only had to do 3 five round groups... Took all of about 30 minutes. Had time to check zero on my other two rifles, a 270 and 22 inch AR. Previous year, on the 270 it took my a good hour just to get the it sighted in. Found out during the previous hunting year my scope mounts were loose. Fortunately did not find out the hard way by missing a deer. 
Given you have your rifles already zerod at 30 yards. It should not take long to zero at 100. |
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Quoted:
Shouldnt take too long at all as mentioned... Dont know if you know this or not, you didnt mention it...a little faster method to use-aim dead on at center of target using a grid style of target...shoot once, locate the impact hole, aim dead at first point of aim then adjust the reticles to the center of first impact hole, shoot again. If it is way off the first round, that will get you loads closer to the center for your normal 3 round group, look, adjust and subsequent 3 round group. I used this in all my hunting rifles, and most i was able to get sight in with about 5-6 rounds. Being the big pain sissy that i am, the .30-06 with no rubber recoil pads..i was good for about 14 rounds before i started whining and asking for cheese. That was using hand loads of above average charges, toward upper end of specs. I woke up sick with i think a sinus infection so my head is more cloudy then normal, so if this dont make sense the way i explained it, iam sure someone else can clarify it better. PS..how come you cant ever go shooting? Thanks...I guess I should get some targets with the grids on them, that never even occurred to me. That would definitely make it easier. The reason I don't get to go often is a combination of things but mostly medical issues. I have spine issues and have to take high doses of meds just to get around. Pretty much any activity is very painful and anything more than just a trip to the grocery store usually leaves me unable to get around for the next 2-3 days so I have to pick my activities carefully because I usually pay dearly for them. I can get around ok in short bursts, 2 hours is usually my max, hence why I wanted to get as much done in a short time as possible. Which of the 100 yard ranges out there would be best? OKCGC is great but I'm not a member so which of the others would be best for sighting in optics? |
| I dont know..i cant find a 100 yard range...and the memberships for like tri-valley or whatever its called and OKCGC are just too high for the little bit of shooting i do. Steve at Coldhand was telling me about a free range out at Banner and I44 i think he said....still wanna go check that one out sometime. |
I think it's Canadian Valley/Banner Road....it was damaged during the last tornado but they have been rebuilding it. I've never been there but from the pictures it looks like a nice place. I've been wanting to check it out for quite awhile but it's not exactly close from north OKC. If it's as nice as the pictures seem it would be worth the drive. I was really hoping Wilshire Gun would be open by now, they are supposed to have a camera system on their 100 yard range so you can see exactly where you are shooting as you shoot. It would make sighting my rifles in extremely fast and super easy but I have no idea when they will open  .
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How long is a piece of string? Seriously, its an open ended question that the possible answers range from a minute or two to several hours. HOWEVER, since you are already on paper at a shorter range, this usually makes it a quick process. This. My first scope sight in was with a brand new gun that had the scope already mounted. It took me 30 minutes of not knowing what was going on with my scope before I gave up and had a range employee bore sight the thing. Another 10 minutes on the range and I was good to go. The next two times I have sighted in were about 15 minutes or so.
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| Yeah, always best to get it on paper at like 10-20 yards for first time shooting it...then walk it out...when i have a location which i can get to 100 yards...generally the first like 15 or so yards...then like 30, then 100. 3 rounds at each and it keeps it at the minimum. At 100 possible more rounds. Since being on this site, i have read about the 50/200 yard zero i think it was. Sight it in on the up swing at 50 and it should catch a zero on the down at 200...interested in trying that out. Hunting in SD taught me the value of a 200 yard zero due to the vastness of the open prairie for antelope and mule deer, and that is about what OK is as well. |
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<snip> I guess I should get some targets with the grids on them, that never even occurred to me. That would definitely make it easier. Just aim at center and walk it in...confirm by grouping once you're in the POA/POI area that you desire... Targets |
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Thanks for that link! You bet! Here are some pre-printed... Targets |