NTXshooter Posted July 14, 2016 Report Share Posted July 14, 2016 I'm looking for a good bore sighter with will work with the 308AR and AR-15 platforms. Any suggestions? Quote Link to comment Share on other sites More sharing options...
mrmackc Posted July 14, 2016 Report Share Posted July 14, 2016 I have BSA optical and bushnell laser boresighters and also a .308 and .223 laser cartridge in the chamber for AR platform rifles, the optic are for bolt action and traditional style rifles as the optic , I like the Bushnell .22 to .50 laser ones that have several plastic bore pieces for a quick boresighting, I push the tapered mandrell in the bore as far as the taper bore ahaft will go and rotate it slowly, while looking thru the scope to see if the laser is centered in the bore, it usually is off a bit, so I allow for that. The lasers need a paper target, with inches marked, to allow for the distance between the bore and scope reticle, when used inside . I do use them inside the shop at 30' and you do need to measure the distance from center of the scope to the center of the bore. I use the laser in the yard at 50 yards before going to the range. The laser isn't too awfully bright out past 50 yards on a bright sunny Texas summer day. Quote Link to comment Share on other sites More sharing options...
blue109 Posted July 14, 2016 Report Share Posted July 14, 2016 I have a bore laser thing, but seems pretty useless more than 25 yds. Seems like it always moves as I rotate it in the barrel like mrmackc says. I just pull the upper/carrier and look down the bore. I have 25 and 100yd reference points out my front door Quote Link to comment Share on other sites More sharing options...
jtallen83 Posted July 14, 2016 Report Share Posted July 14, 2016 I've tried the Bushnell laser with different size arbors and a cartridge type laser. both gave me a 12-16 inch circle at 25 foot as I rotated them. With some effort I could use them to get close but sighting down the bore by eye is far easier. Quote Link to comment Share on other sites More sharing options...
mrmackc Posted July 14, 2016 Report Share Posted July 14, 2016 at night you can use a street light to boresight with unless the view is restricted by the rifle receiver like on a mini 14 or a lever action in daylight I have used the top of a power pole. You gotta remember that boresighting is line of sight and you have to sight in at a range at a known sight distance to allow for a specific bullet drop compensation. Quote Link to comment Share on other sites More sharing options...
EngrBob Posted July 14, 2016 Report Share Posted July 14, 2016 ^ I use one (street light at night or pointed top of luminaire during the day) just about 50 yards from the back door and it gets me within a few inches at 100 yards. Quote Link to comment Share on other sites More sharing options...
COBrien Posted July 19, 2016 Report Share Posted July 19, 2016 I bought a SiteLite SL100 several years ago, and it's probably the best firearms-related investment I've ever made (aside from my 2nd gun safe...). It has a magnet that keeps it in place at the muzzle and comes with various arbors and O-rings, as well as a target marked in half-inch (maybe quarter-inch?) increments. Plus SiteLite offers a free download of their ballistics program with an activation code you get in the package. It's not perfect, but it's pretty damn good. I've used it to boresight my Mini-14, 10/22, Savage 110 (.270), LR-308, my .22 WMR, and the wife's AR-15. A friend had me boresight his .30-06 and it was within 1/2" of where we needed it to be at 100 yards (note, we didn't start off at a shorter distance -- went straight to 100 yards just to see how close it actually was). Quote Link to comment Share on other sites More sharing options...
mrmackc Posted July 21, 2016 Report Share Posted July 21, 2016 On 7/19/2016 at 3:26 PM, COBrien said: I bought a SiteLite SL100 several years ago, and it's probably the best firearms-related investment I've ever made (aside from my 2nd gun safe...). It has a magnet that keeps it in place at the muzzle and comes with various arbors and O-rings, as well as a target marked in half-inch (maybe quarter-inch?) increments. Plus SiteLite offers a free download of their ballistics program with an activation code you get in the package. It's not perfect, but it's pretty damn good. I've used it to boresight my Mini-14, 10/22, Savage 110 (.270), LR-308, my .22 WMR, and the wife's AR-15. A friend had me boresight his .30-06 and it was within 1/2" of where we needed it to be at 100 yards (note, we didn't start off at a shorter distance -- went straight to 100 yards just to see how close it actually was). Do you have the red laser or the green laser SiteLite ? Quote Link to comment Share on other sites More sharing options...
COBrien Posted July 21, 2016 Report Share Posted July 21, 2016 57 minutes ago, mrmackc said: Do you have the red laser or the green laser SiteLite ? Mine is red. The green one is the SL500, the big boy. I bought my SL100 when I was a broke law student -- I couldn't afford the SL500... Quote Link to comment Share on other sites More sharing options...
mrmackc Posted July 21, 2016 Report Share Posted July 21, 2016 How much practical Distance do you get for the laser on a sunny day? Do you have the reticle level and their ballistics software? Sorry, I am all questions today. Quote Link to comment Share on other sites More sharing options...
COBrien Posted July 21, 2016 Report Share Posted July 21, 2016 I have only used it outside once, and had no problem seeing the dot at 50 yards. That was using the included boresighting target which, IIRC, SiteLite claims is coated with something special to make the laser easier to see in sunlight. Looks like satin-matte cardstock to me... I generally use it indoors after mounting a new scope -- I know it's exactly 30 feet from one corner of the living room to the back wall of my bedroom, so I set my target up there. The wife thought I was nuts until I boresighted her AR after mounting her Eotech. When she took it to the range the next day to qualify, she only needed 3 clicks to get it dead-on. She doesn't giggle about my methods any more... I do have the ballistic software on my laptop, and it's actually pretty good. It's no Strelok, but it serves its purpose. You input your caliber, weight, muzzle velocity, height above bore, and zero range, then choose the "near distance" you want to use the laser at (in my case, 30 feet). It will then tell you how far below the center of the crosshairs the laser point needs to be, and give you the option to print out a target with crosshairs in the center and a 1/2" diameter circle where the laser should be held. Printing a target from the software makes for an easy setup. Put your rifle in a good rest/bipod, turn the laser on, line the dot up inside the circle, and adjust your crosshairs to match the ones on the target. The kit comes with a reticle level of sorts -- a small target with a bubble level glued to it. You hang it with the level, well, level, and can use it to adjust your crosshairs. I loaned mine out to a friend once and it came back with the level gone and a boogered up spot on the target. I have always leveled my reticles by other means, so I don't much miss the level on the SiteLite target. Quote Link to comment Share on other sites More sharing options...
mrmackc Posted July 21, 2016 Report Share Posted July 21, 2016 Okay I hadn't seen a picture of the "reticle level" and was a bit curious, thanks, Don't you just love friends that tend to screw up any thing loaned, probably even mess up a wet dream. Busnell lasor boresighter is simular to the SiteLight 100, but staff is plastic and not magnetic works for me, out to 50 yards in my yard. I also use it inside my shop at 30'. The laser in a .308 size cartridge size brass housing works in the chamber well if a patch is placed between it and the bolt gently closed on my LR308. both red lasors are easiably visable at 50 yards outside. I also have one in .223 and .3006. but the one for the muzzle is faster, and I worry about the ones in the chamber getting stuck. Quote Link to comment Share on other sites More sharing options...
planeflyer21 Posted July 21, 2016 Report Share Posted July 21, 2016 I still have yet to see a red laser that works on the desert ranges in direct daylight. Quote Link to comment Share on other sites More sharing options...
COBrien Posted July 21, 2016 Report Share Posted July 21, 2016 51 minutes ago, planeflyer21 said: I still have yet to see a red laser that works on the desert ranges in direct daylight. I don't know much of anything that likes being in the desert in direct sunlight... Quote Link to comment Share on other sites More sharing options...
NTXshooter Posted July 23, 2016 Author Report Share Posted July 23, 2016 Broke down and bought a SL-100. I'll see how well it works next time I go to the range. Quote Link to comment Share on other sites More sharing options...
buttonbuck Posted February 15, 2017 Report Share Posted February 15, 2017 (edited) Just for giggles I challenge anyone debating a bore sighter to try it country hick style if you haven't dropped coin yet. Take off the upper receiver and get it situated on a target(I put mine on the kitchen counter facing off the porch to the driveway and walked out to the end and put a piece of blue edging tape on a tree at maybe 40 yards). Take out the BCG and look down the barrel and line it up on your target then look through your scope an adjust as necessary to bring them into harmony. A bore sighter is more accurate than this for sure, but to a level where it matters once firing at your chosen zero distance I don't see any difference. I've never seen anyone dial a rifle scope in where they didn't do some fine tuning at their zero distance again. I was done rotating turrets after maybe 5-6 rounds on my last 'eye sighter' build a month ago. Let's say a well done precision take your time like your life depends on it bore sighter gets you to 1" high and 1" right and kitchen counter eye sighter gets you to 4" high and 4" right. What's the real world difference by the second shot? For 1/4 MOA clicks @ 100 the laser guy clicks 4x and the eye baller clicks 16x. After 2 shots they are likely on top of each other or under an inch at 100 yards. Edited February 15, 2017 by buttonbuck Quote Link to comment Share on other sites More sharing options...
blue109 Posted February 15, 2017 Report Share Posted February 15, 2017 Do that all the time. I have 25yds marked off in my back yard and an X painted on the wall. I use a step ladder as a bench. Quote Link to comment Share on other sites More sharing options...
buttonbuck Posted February 15, 2017 Report Share Posted February 15, 2017 Just now, blue109 said: Do that all the time. I have 25yds marked off in my back yard and an X painted on the wall. I use a step ladder as a bench. That's a great idea as I'm looking for every opportunity to stop crouching down at this age. Thanks for the tip! Quote Link to comment Share on other sites More sharing options...
98Z5V Posted February 15, 2017 Report Share Posted February 15, 2017 (edited) 40 minutes ago, buttonbuck said: Just for giggles I challenge anyone debating a bore sighter to try it country hick style if you haven't dropped coin yet. Take off the upper receiver and get it situated on a target(I put mine on the kitchen counter facing off the porch to the driveway and walked out to the end and put a piece of blue edging tape on a tree at maybe 40 yards). Take out the BCG and look down the barrel and line it up on your target then look through your scope an adjust as necessary to bring them into harmony. A bore sighter is more accurate than this for sure, but to a level where it matters once firing at your chosen zero distance I don't see any difference. I've never seen anyone dial a rifle scope in where they didn't do some fine tuning at their zero distance again. I was done rotating turrets after maybe 5-6 rounds on my last 'eye sighter' build a month ago. Let's say a well done precision take your time like your life depends on it bore sighter gets you to 1" high and 1" right and kitchen counter eye sighter gets you to 4" high and 4" right. What's the real world difference by the second shot? For 1/4 MOA clicks @ 100 the laser guy clicks 4x and the eye baller clicks 16x. After 2 shots they are likely on top of each other or under an inch at 100 yards. That technique won't work on pistols or shotguns. But, my laser boresighter does. Edited February 15, 2017 by 98Z5V Quote Link to comment Share on other sites More sharing options...
buttonbuck Posted February 15, 2017 Report Share Posted February 15, 2017 I've been more than happy with the accuracy of my various handguns and shotguns right off the shelf, but I suppose if one is not happy with them then a laser bore sighter is necessary. Quote Link to comment Share on other sites More sharing options...
mrmackc Posted February 16, 2017 Report Share Posted February 16, 2017 First thing I try to make a newbie understand is that bore sighting isn't a substitute for sighting in, bore sighting with a lazer or optical bore sighter is just making sure the line of sight of the sights is in line with a straight line from the bore, sighting in aligns your line of sight with the actual trajectory of the fired bullet. Quote Link to comment Share on other sites More sharing options...
98Z5V Posted February 16, 2017 Report Share Posted February 16, 2017 ^^^ Exactly so. Gonna be tough to eyeball boresight a scope on a slug-only shotgun. Fastest way on that is laser. Same with "aiming aids" on pistols... Quote Link to comment Share on other sites More sharing options...
buttonbuck Posted February 16, 2017 Report Share Posted February 16, 2017 11 hours ago, mrmackc said: First thing I try to make a newbie understand is that bore sighting isn't a substitute for sighting in, bore sighting with a lazer or optical bore sighter is just making sure the line of sight of the sights is in line with a straight line from the bore, sighting in aligns your line of sight with the actual trajectory of the fired bullet. I've never broken down the process to that level and I'm glad you did thanks. On scatter guns/handguns I'm probably a bit of a simpleton as I grew up learning to shoot on an antique Ithaca 12g side by side with no sights of any kind it was stone cold turkey/deer slayer. "Here son shoot this at that" kind of thing and I could do it. For some reason I just hit what I'm aiming at, but I also might be aiming at a more forgiving target. I practice with my edc off a draw stroke for cns or upper left quadrant hits on ipda steel with paint feedback, not unlike MPBR for my hunting. If I can put it in the vital zone I'm happy. Quote Link to comment Share on other sites More sharing options...
HotRod308 Posted February 19, 2017 Report Share Posted February 19, 2017 One could just look down the bore at an object, than without moving the upper adj the sight/scope to the same point. Very simple to do, worked for me very well. Quote Link to comment Share on other sites More sharing options...
98Z5V Posted February 19, 2017 Report Share Posted February 19, 2017 ^^^ Did not read entire thread before responding... Quote Link to comment Share on other sites More sharing options...
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