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Joined: Jul 2005
Posts: 1,807
Campfire Regular
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OP
Campfire Regular
Joined: Jul 2005
Posts: 1,807 |
Can someone recommend a reasonably price one ,that you can use from 17 cal. and up and works in AR's also . Thank you
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Joined: Apr 2011
Posts: 151,711 Likes: 11
Campfire Savant
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Campfire Savant
Joined: Apr 2011
Posts: 151,711 Likes: 11 |
I have an old Bushnell, gets me on paper at a hundred, but won’t work on my two AR’s. I sighted one in today at 25 yds, then moved back to a hundred.
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Joined: Apr 2008
Posts: 1,976
Campfire Regular
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Campfire Regular
Joined: Apr 2008
Posts: 1,976 |
I've had two: a Bushnell years ago and a Leupold for the last few years. Both have given about a 50/50 chance of getting on paper at 100 yards. Much better at twenty-five. With a bolt-action rifle, bore sighting works about as well. There are probably better units out there than what I've used.
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Joined: Oct 2007
Posts: 5,468
Campfire Tracker
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Campfire Tracker
Joined: Oct 2007
Posts: 5,468 |
I have the BSA set as well. Always gets me on paper at 50 yards, might work at 100 but I start at 50..
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Joined: Jul 2001
Posts: 60,138 Likes: 10
Campfire Kahuna
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Campfire Kahuna
Joined: Jul 2001
Posts: 60,138 Likes: 10 |
One thing I've pointed out before in a few places is that ANY bore-sighter (collimator) needs to be "sighted-in." You do this by mounting it on an already sighted-in rifle (or preferably, several) and see where the scope's reticle is on the collimator screen.
It will NOT be in the same place for all rifles, due to a couple of factors, but will usually be in a general area somewhere AROUND the center of the screen. The middle of that area is where you need to move the scope reticle to have a good chance of bullets landing close to center on a target at 100 yards.
Some collimators can even be adjusted so the reticle of a sighted-in rifle is centered in the collimator screen, but tend to be more expensive, so may not meet Longbow's definition of "reasonably priced."
Collimators that attach with a magnet, rather than metal "spuds" inserted in the to muzzle, are more versatile and usually less expensive, but also tend to be less accurate, because they depend on the squareness of the muzzle, rather than bore itself. But they can used on just about any rifle--or even shotgun slug barrels.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
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Joined: Feb 2006
Posts: 18,033
Campfire Ranger
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Campfire Ranger
Joined: Feb 2006
Posts: 18,033 |
Mine's a BSA I actually got by winning Penguin's You Pick 'Em football pool one year. It works. All these are to do is get you on the paper. In no way is your gun ready to go hunting after bore sighting. The arbor set that came with the gun covers everything from .17 up to .50 caliber. When I worked at the rifle range many years ago, they ran 4 of the Bushnell boresighters. I never saw it done, but I know they calibrated them before putting them into use, and it did make a difference. We never had a gun not be centered on the paper at 50 yards after the first shot, assuming the shooter had decent shooting skills. My BSA seems to be about an inch low and to the right at 50 yards, so I compensate for it slightly when I set the crosshairs before shooting.
molɔ̀ːn labé skýla
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Joined: May 2004
Posts: 56,147 Likes: 11
Campfire Kahuna
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Campfire Kahuna
Joined: May 2004
Posts: 56,147 Likes: 11 |
Never got into the collimator idea, mostly because a visual thru the bore in comparison to the crosshairs/peeps on target does the trick most days. Some guns don't let one do that of course, but that's why the 25 yard line was invented maybe?
I am..........disturbed.
Concerning the difference between man and the jackass: some observers hold that there isn't any. But this wrongs the jackass. -Twain
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Joined: Jul 2013
Posts: 9,189
Campfire Outfitter
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Campfire Outfitter
Joined: Jul 2013
Posts: 9,189 |
I inherited one from my father. I tried it a few times. It wasn't any more effective than a 25yd dot on cardboard, then a target at 100 as far as actual shots fired to get on paper. Maybe I should what Mule Deer suggests, but I find it just as easy to shoot at a close target once, adjust scope, and go to 100.
I belong on eroding granite, among the pines.
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Joined: Jul 2001
Posts: 60,138 Likes: 10
Campfire Kahuna
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Campfire Kahuna
Joined: Jul 2001
Posts: 60,138 Likes: 10 |
These threads always question the value of a collimator--though they're almost always called "bore-sighters."
I have also pointed out before that their best use is not in getting sighted-in, but in making sure a scope is properly aligned with the bore during mounting. This prevents all sorts of problems, including erratic adjustments.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
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Joined: Feb 2007
Posts: 7,936 Likes: 1
Campfire Outfitter
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Campfire Outfitter
Joined: Feb 2007
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I've never felt that one could saved me a single round, nor a minute of my time getting a rifle zeroed. With a bolt rifle I simply bore sight at 50 yards and then fire one shot at 50. I'm usually within 2" then I fine tune and shoot shot #2 at 100 and fine tune again. Shot #3 is zeroed. I've never found a bore sight tool that could get the 1st shot any closer.
With a rifle that I can't bore sight easily I just make sure I use a target big enough to ensure that I hit paper with shot #1. It doesn't really matter if the 1st shot is 10" or 1" from zero. As long as you have a hole in the paper it is simply a matter of adjusting the scope the correct amount.
Most people don't really want the truth.
They just want constant reassurance that what they believe is the truth.
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Joined: Dec 2002
Posts: 12,328
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2002
Posts: 12,328 |
+1 . Mine has gotten me on the paper at 100 yards 100% over 15 years. It has the added benefit that if you take a measurement of the deflection after you've got it zeroed, you can use that for comparison later. This answers the question: did I knock the scope off kilter in transport?
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Joined: Jul 2010
Posts: 817
Campfire Regular
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Campfire Regular
Joined: Jul 2010
Posts: 817 |
A pc of old brass with the primer knocked out then inserted in the chamber works well on bolt guns. I like using those orange or green target dots so it's easier to see them.
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Joined: Nov 2015
Posts: 19,211
Campfire Ranger
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Campfire Ranger
Joined: Nov 2015
Posts: 19,211 |
+1 . Mine has gotten me on the paper at 100 yards 100% over 15 years. It has the added benefit that if you take a measurement of the deflection after you've got it zeroed, you can use that for comparison later. This answers the question: did I knock the scope off kilter in transport? I have this one also, and it has always worked for 25 yards, which is where I always start anyway. I have had it work at a 100, but since I don't start that that distance, I don't know how reliable it would be.
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Joined: Jul 2015
Posts: 14,712 Likes: 2
Campfire Outfitter
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Campfire Outfitter
Joined: Jul 2015
Posts: 14,712 Likes: 2 |
I don't ever use one. If it's a rifle I can't look through the bore on, like an M1 or a lever, I just shoot at 25yds & adjust. With bolt actions I remove the bolt and sight down the bore. ARs, just remove the upper from the lower and remove the BCG and do the same thing. With a steady rest, it works very well. Just remember to add elevation.
Politics is War by Other Means
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Joined: Oct 2006
Posts: 1,915 Likes: 1
Campfire Regular
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Campfire Regular
Joined: Oct 2006
Posts: 1,915 Likes: 1 |
What's wrong with the laser type that sticks in the end of the barrel? I've had a Cabela's branded one for years. It has different plastic bushings so it fits snug in different bores. I usually stick it in, adjust scope, pull it out and reinsert it, adjust again if needed. Seems to work fine on every gun I've used it on.
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Joined: Apr 2001
Posts: 9,730
Campfire Outfitter
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Campfire Outfitter
Joined: Apr 2001
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Never got into the collimator idea, mostly because a visual thru the bore in comparison to the crosshairs/peeps on target does the trick most days. Some guns don't let one do that of course, but that's why the 25 yard line was invented maybe? What's wrong with the laser type that sticks in the end of the barrel? I've had a Cabela's branded one for years. It has different plastic bushings so it fits snug in different bores. I usually stick it in, adjust scope, pull it out and reinsert it, adjust again if needed. Seems to work fine on every gun I've used it on. Nothing. There's always more than one way to skin a cat. I use a Bushnell magnetic boresighter, after mounting a scope. Boresighters put you in the ballpark (on paper). Follow the instructions and you should find bullet holes at 25 yd. I have a wooden straight edge that I hold against the scope to rough align the boresighter to my scope. How many times have you watched someone struggle with his rifle at the range, trying to find a solitary bullet hole? Take pity on them and help, if you can. I use this particular one because it is small, portable and can be used with any action type. I used to harmonize F104 and F5 aircraft 20mm guns. The 104 was done at a 25 yd butt. Harmonizing is actually matching the gun sight with the gun because the HUD isn't attached directly to the gun itself. The a/c was jacked and 25 rds was fired into a backstop. Whenever we had a new technician on the crew, he would get to sit in the cockpit and squeeze the trigger. We always told him, "Don't forget to lift your feet before you squeeze the trigger!" There was no need to do this, but that started years ago as a joke and people just kept saying it. F5s were done differently, using a 1000 inch white board and bore sighter. As you can imagine, it was quicker, easier to fix SA sights. Here's an older pic of some RCAF armourers harmonizing the 50 cal guns on an F86. Look closely and you can see the a/c was jacked to disable the weight on wheels switch. I can't find any CF5 or CF104 harm photos.
Safe Shooting! Steve Redgwell www.303british.comGet your facts first, then you can distort them as you please. - Mark Twain Member - Professional Outdoor Media Association of Canada
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Joined: Feb 2009
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Campfire Outfitter
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Campfire Outfitter
Joined: Feb 2009
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Interesting this topic came up. I have a Bushnell that I’ve been using for years. The spuds are about done. Can you buy replacements . Or is it time for a new one. Hasbeen
hasbeen (Better a has been than a never was!)
NRA Patron member Try to live your life where the preacher doesn't have to lie at your funeral
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Joined: Jul 2015
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Campfire Outfitter
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Campfire Outfitter
Joined: Jul 2015
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So a solid rest is important, even with aircraft.
Politics is War by Other Means
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Joined: Dec 2002
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Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2002
Posts: 12,328 |
It all comes down to individual preference really. However, I will say that after several decades of trying to mount scopes without my BSA bore sighter, I found that it simplified the process.
25 yard shots will get you your windage adjustment up to a point, but it will not get you elevation.
The BSA bore sighter I have has payed for itself many, many times over in saved ammunition, and it's answered a lot of questions along the way.
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