How close to zero does it get you with a scope?

Very close with my red dots. I set a table up om one end of a tweleve foot room. Set and locked my rifle into a gun vice. Inserted the bore Laser into the chamber. With bore light show on the far wall I aligned my red dot on top of it. I did this with a 12 gauge pump, several .223 rifles and a 9mm carbine. All using different bore sights of course. At range everything was within two clicks or right on. I did adjust the .223 and 9 to shoot a little higher. Twelve gauge was right on for twelve feet, which is good range for a home shotgun.

Does this one turn on when trigger is pulled or does it stay on all time once place in chamber?

The laser turns on when the batteries are inserted and the cap is screwed on. There is no switch. You won't want to pull the trigger when this is in the chamber, as the back of the boresighter is brass and likely won't react well to a firing pin strike. It works pretty well. Keep in mind you just use this to align your sights and then eject the round. To store it you unscrew the rear cap and remove the batteries.

What do I need to bore sight a .410 shockwave?

a .45 long colt bore sight could possibly work since there are revolvers that can fire both .45lc and 410

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MidTen Bore Sight 12 Gauge Laser Boresighter Red/Green Dot Zeroing Laser Bore Sight with Extra Batteries

MidTen Bore Sight 12 Gauge Laser Boresighter Red/Green Dot Zeroing Laser Bore Sight with Extra Batteries

Product ID: 124085788

Details

Brand
MidTen
Color
Tan
Compatible Devices
Shotgun
Item Weight
0.05 Kilograms
Magnification Maximum
3
Magnification Minimum
3 x

🎯Class IIIA laser precision <5mW

🔋8-hour battery life with extras

🛠️Durable brass, caliber-specific fit

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€ 34.66

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎯 Zero in like a pro—because your aim deserves precision.

BUILT TO LAST - Sturdy brass construction guarantees durability and consistent performance season after season.
READY WHEN YOU ARE - Includes extra AG13 batteries delivering up to 8 hours of uninterrupted laser performance—never miss a moment in the field.
SAVE AMMO SAVE TIME - High accuracy reduces wasted cartridges with a sighting range from 15 to 100 yards—optimize your hunting efficiency.
TAILORED FOR 12 GAUGE - Caliber-specific design fits perfectly in your 12-gauge chamber for effortless, fast bore alignment.
PINPOINT ACCURACY EVERY TIME - Class IIIA laser ensures ultra-precise zeroing with less than 5mW power for safe, reliable sighting.

The MidTen Bore Sight 12 Gauge Laser Boresighter features a Class IIIA laser under 5mW for safe, precise sighting. Designed specifically for 12-gauge shotguns, it boasts durable brass construction and comes with extra batteries providing up to 8 hours of use. With a sighting range of 15 to 100 yards, it enables fast, accurate zeroing to reduce wasted ammo and improve hunting efficiency.

Specifications

ASIN	B07MS8TQRM
Aiming Scope Sight Pin Size	2 Inches
Best Sellers Rank	#27,665 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #32 in Hunting Boresighters
Brand Name	MidTen
Color	Tan
Compatible Devices	Shotgun
Customer Reviews	4.6 4.6 out of 5 stars (4,149)
Item Dimensions L x W x H	2"W x 1.18"H
Item Weight	0.05 Kilograms
Magnification Maximum	3
Magnification Minimum	3 x
Manufacturer	NANTONG CHENGXIN OPTICAL INSTRUMENT CO., LTD.
Material Type	Brass
Model Number	12GA
Mounting Type	Picatinny Mount
Night vision	No
Product Style	Red Laser
Reticle Type	Dot
Sport Type	Hunting
UPC	712096309317
Unit Count	1.00 Count

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