bore sighting help

neotekz

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im very new to shooting with a scope, just picked up a savage 200 in 308 with a bushnell 3200 elite the other day and have been reading up on how to properly bore sight. i didnt know that it was as easy as taking out the bolt and looking down the bore so i bought one of those bushnell magnetic bore sighter. my problem using the magnetic bore sighter, it seems straightforward enough just match your cross hairs with the ones on the bore sight but it seems everytime i sighted the gun and put it away and then check it again the next day the two cross hairs don;t line up anymore. i've also tryed looking through the bore and it seems good so should i just stop using the bore sighter?
 
i've only brought it out once and the scope is not zeroed so i dunno how accurate it should of been. from what i remember it shot a few inches away from where i aimed at around 50 meters but that could of been just me since ive only shot pistols and .22 rifles in the past. it shot groups of about 2 inches at 100m. i will try again this weekend
 
Most of the bore sighter's I have used got you around your point of aim, that is all you really need. A few adjustments to match your point of aim with your point of impact and zero your scope. As you get more trigger time with your .308 the groups will get smaller and smaller. Have fun and keep us posted.:D
 
Since the magnetic boresighter will not attach to the muzzle at the same height everytime, it will not line up every time.

A boresighter is just that, a boresighter. It is a crude instrument that will get your scope aligned with your bore enough to get you on paper at 50yds and you can adjust your zero from there. It is rare to set your scope according to your boresighter and have it perfectly aligned for your target zero.

From what little that I know about the magnetic ones is that you have to measure and set the height of the boresighter.

Ones with the mandrels are allot simpler.
Simpler maybe....but you won't catch me putting anything other than brass or copper in my barrel, especially at the muzzle end. :eek: :eek:
 
Put the boresighter back on the shelf after you've used it once to get you in the ballpark. I doubt its a precision, repeatable alignment, considering how roughly they typically get the scope sighted. I would not be relying on it to re-confirm zero.
 
i use the Bushnell Professional Bore Sighter Save many times their cost in time and ammo. Large diameter objective lens for optimum resolution. Lightweight metal, mar-resistant glossy body. Three expandable arbors for full range of calibers from .22 to .45. Deluxe carrying case. 114$ at CABELAS CANADA, will save you ammo.
 
i use the Bushnell Professional Bore Sighter Save many times their cost in time and ammo. Large diameter objective lens for optimum resolution. Lightweight metal, mar-resistant glossy body. Three expandable arbors for full range of calibers from .22 to .45. Deluxe carrying case. 114$ at CABELAS CANADA, will save you ammo.


does your bore sight give the same results after you store the gun for a while?
 
you borsight your gun to bring it to paper, then you will need to shoot your rifle on bull, after your scope is sighted, you should never have any change , unless you change your balistic, like different ammo...
 
Since its highly unlikely the boresighter will put you on the bullseye in the first place, once you'd adjusted your scope at the range, there's no point going back to the boresighter to confirm anything.
 
yes i understand that the boresight is just for a rough estimate but what concerned me is that it seems like everytime i check the scope doesnt seem consistent. i was just worried that since the crosshair were moving around so much that there could be a problem with my scope or mounts.
 
maybe you should check your mount, if its not tight , your scope will never stay sighted or maybe its your scope that has a defect?
 
I wouldn't worry your self silly.. Just wait and see what happens when you shoot it next time... these aren't precision instruments..

Don't worry.. See how it shoots and go from there...
 
A bore sighter is designed to get you on paper. From there you use your scope's own elevation and windage adjustment to actual "zero" the scope at the desired distance.
Magnetic boresighters aren't known for their repeatability. Only thing I can suggest is for you to install the boresighter on the muzzle of your rifle. Then take a marker and trace around the rifle's muzzle, leaving the outline of the muzzle on the magnet. If you want to check your bore sight...install the bore sighter back in the same position using the marker outline for a guide. If the cross hairs do not line up, you either have scope problems or ring/mount problems.
 
yes i did mark off the position on the boresighter. here's how i installed the scope using leupold STD mounts, the two piece base. i installed the bases using locktight with the windage base at the rear. then i used a metal rod i had that was an inch to turn and align the front rings with the back. then i put the scope on and with the front rings screwed in, not too tight and then put the rear rings on the scope and adjusted it to the base to take up some of the windage, i turned the windage screws very tight. then i tighten the rings switching from right to left and front to back. i was told to tighten until the i can feel the allen key slightly bend. did i do it right?
 
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