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Tip of the Day: Bore-Sight Your Shotgun Scope Using Spent Shells

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February 20, 2009

Tip of the Day: Bore-Sight Your Shotgun Scope Using Spent Shells

By none

To bore-sight a scope-mounted 12-gauge shotgun barrel, remove the primers from a spent 12-gauge shell and a spent 20-gauge shell. Put the open 12-gauge shell in the chamber and insert the open 20-gauge shell in the muzzle. Secure the barrel in a vise or sandbags. Sighting through the barrel, line up the primer holes on your target. Now, simply adjust the scope to put the crosshairs on the same spot. – Thomas Stormanski, Chester, VA

 

Comments (13)

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from kolbster wrote 5 years 8 weeks ago

i will have to try that.

+1 Good Comment? | | Report
from dwaynez wrote 5 years 8 weeks ago

Interesting Tip, will give that a shot

+1 Good Comment? | | Report
from Christopher Gehrig wrote 5 years 7 weeks ago

Great Idea, I'll have to see how it works.

+1 Good Comment? | | Report
from Sportsman Matt wrote 5 years 7 weeks ago

That one works, also towards dusk or dawn while it's still dark out, UNLOAD YOUR GUN AND MAKE SURE IT IS UNLOADED, then take a Mini Mag Lite and insert it in the muzzle end of the barrel (usually will fit the 12GA without problems but you may have to swap out the choke for a IC, focus the light into a real tight spotlight, and place it on a target or object and adjust the scope to get the cross hairs on the center of the spot of light. Done that a couple times turkey hunting, swapped the chokes out, spotted it, then put the choke back in. Never lost a bird through the scope. Just remember to remove the mini mag light before loading the gun.

+1 Good Comment? | | Report
from Del in KS wrote 5 years 7 weeks ago

I would shoot at least 1 shot to verify the zero. You can use light target loads then switch to the high priced Turkey ammo for hunting.

+2 Good Comment? | | Report
from shane wrote 5 years 7 weeks ago

As an avid F&S reader, i already know the trick. They ran this one a good while back.

+1 Good Comment? | | Report
from steve182 wrote 5 years 7 weeks ago

that's an interesting approach. I recently mounted a saddle mount (b.square) on my Browning BPS to shoot slugs for deer. After a few shop modifications to the mount, i took it to the range. First i shot 2 slugs at a pizzabox target at 20 yds, made windage and height adjustments. Shot two more at that range to verify the changes (about a 2 inch group). I then put it on the sandbags at about 60 yds and shot A four shot 3 inch group. Not bad for a smoothbore shooting cheap Rem. Sluggers. Start to finish i had an hour and a half into it. Unfortunately i only took one shot during the 6day season, at a coyote i did not recover. That however was probably due to a hasty offhand shot at a moving target where the swamp made my search difficult. Point of this story, if there is one, is that i had a relatively easy time mounting this scope and zeroing it w/o boresighting. Was i just lucky?

+1 Good Comment? | | Report
from markpangler@aol.com wrote 5 years 7 weeks ago

This sounds like a great way to bore sight your gun, I love the tips that you can get from F&S.

+1 Good Comment? | | Report
from Dan the Man wrote 5 years 7 weeks ago

Thanks for the tip. I'll try it this fall.

+1 Good Comment? | | Report
from hnestle wrote 5 years 7 weeks ago

great tip. Thanks

+1 Good Comment? | | Report
from Jeremy Bedette wrote 2 years 23 weeks ago

Worked great. Had my 870 totally stripped down. Put it back together and sighted the scope using the above listed technique. Half an inch low at 50 yards! Not bad.

0 Good Comment? | | Report
from Trapper Vic wrote 25 weeks 1 day ago

For diagram purposes 20 ga are yellow. might work for short range buckshot loads but don't think I'd trust it for rifled slug barrels.

0 Good Comment? | | Report

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from Del in KS wrote 5 years 7 weeks ago

I would shoot at least 1 shot to verify the zero. You can use light target loads then switch to the high priced Turkey ammo for hunting.

+2 Good Comment? | | Report
from kolbster wrote 5 years 8 weeks ago

i will have to try that.

+1 Good Comment? | | Report
from dwaynez wrote 5 years 8 weeks ago

Interesting Tip, will give that a shot

+1 Good Comment? | | Report
from Christopher Gehrig wrote 5 years 7 weeks ago

Great Idea, I'll have to see how it works.

+1 Good Comment? | | Report
from Sportsman Matt wrote 5 years 7 weeks ago

That one works, also towards dusk or dawn while it's still dark out, UNLOAD YOUR GUN AND MAKE SURE IT IS UNLOADED, then take a Mini Mag Lite and insert it in the muzzle end of the barrel (usually will fit the 12GA without problems but you may have to swap out the choke for a IC, focus the light into a real tight spotlight, and place it on a target or object and adjust the scope to get the cross hairs on the center of the spot of light. Done that a couple times turkey hunting, swapped the chokes out, spotted it, then put the choke back in. Never lost a bird through the scope. Just remember to remove the mini mag light before loading the gun.

+1 Good Comment? | | Report
from shane wrote 5 years 7 weeks ago

As an avid F&S reader, i already know the trick. They ran this one a good while back.

+1 Good Comment? | | Report
from steve182 wrote 5 years 7 weeks ago

that's an interesting approach. I recently mounted a saddle mount (b.square) on my Browning BPS to shoot slugs for deer. After a few shop modifications to the mount, i took it to the range. First i shot 2 slugs at a pizzabox target at 20 yds, made windage and height adjustments. Shot two more at that range to verify the changes (about a 2 inch group). I then put it on the sandbags at about 60 yds and shot A four shot 3 inch group. Not bad for a smoothbore shooting cheap Rem. Sluggers. Start to finish i had an hour and a half into it. Unfortunately i only took one shot during the 6day season, at a coyote i did not recover. That however was probably due to a hasty offhand shot at a moving target where the swamp made my search difficult. Point of this story, if there is one, is that i had a relatively easy time mounting this scope and zeroing it w/o boresighting. Was i just lucky?

+1 Good Comment? | | Report
from markpangler@aol.com wrote 5 years 7 weeks ago

This sounds like a great way to bore sight your gun, I love the tips that you can get from F&S.

+1 Good Comment? | | Report
from Dan the Man wrote 5 years 7 weeks ago

Thanks for the tip. I'll try it this fall.

+1 Good Comment? | | Report
from hnestle wrote 5 years 7 weeks ago

great tip. Thanks

+1 Good Comment? | | Report
from Jeremy Bedette wrote 2 years 23 weeks ago

Worked great. Had my 870 totally stripped down. Put it back together and sighted the scope using the above listed technique. Half an inch low at 50 yards! Not bad.

0 Good Comment? | | Report
from Trapper Vic wrote 25 weeks 1 day ago

For diagram purposes 20 ga are yellow. might work for short range buckshot loads but don't think I'd trust it for rifled slug barrels.

0 Good Comment? | | Report

Post a Comment

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