Best boresighter?

[treefarmer]

What’s a good bore sight to get? Looking on Amazon and the reviews are a real crap shoot

[Mtnwalker]

What are you wanting to do with it? Just get on paper faster or do you want something accurate enough to check your scope when you travel etc?

[Fl0und3rz]

I am a big fan of this one.

https://sitelite-lasers.com/product_SL100.html

Multi-caliber, you can print custom-ranged sight in targets with their software, and there's a reticle-leveling target included.  On paper first time every time I have used it.

[treefarmer]

Just get on paper

[BULLBLASTER]

Take the bolt out and look down the barrel. 

[GWP]

 
That is what I have done for 45+ years and it works to get ‘on paper’. I got a Tasco set up but more
Often than not I just bore it and hit the range. If you can not look down the barrel than something to give you a reference will be needed. Darkened room with a flashlight aimed in the chamber will give ‘usually’ enough light for ‘close enough’ in that case up against a wall.

[spoonman]

 

Pull the bolt. Center up the bullseye on the bore then adjust the scope to the bullseye. You’ll be on and probably pretty close . Been doing it this way for years .

[treefarmer]

Yeah I’ve been pulling the bolt for years as well. Just wanted one though.  Thanks flounderz. Buying the sitelite

[dilleytech]

Looking down the bore always gets me within 8” at 100 yards. Bought a bore sight once. Battery’s died and I threw it away. Worthless.

[Mtnwalker]

Take the bolt out and look down the barrel. 

Agree. Once you get the hang of it you can get really dang close. Put it on bipods or in a vice and look down the bore. I did 3 rifles last weekend after swapping some scopes around and all 3 were within 4-5 inches at 100. Key is to use it like a peep sight make sure it’s centered

[Okanagan]

One more tip for boresighting by looking through the barrell:  The farther away the object sighted on, the longer the sight radius and so the closer you will be to perfect at 100 yards.  My all time best bore sight point was an insulator on a power line 3 miles out the window from my kitchen table.  Nest the rifle in sandbags, center the insulator in bore and dial the scope to the insulator without moving the rifle.

Quick check back and forth from bore to crosshairs without touching the rifle and it is ready to go to the range. My second most accurate handy aiming point was the corner of a chimney 250 yards away.  When I first started boresighting our normal was to boresight at 25 yards. 2500 produces far more accuracy.

As said, make sure the object being sighted on is CENTERED in the concentric rings of bore, muzzle, action, and it is pretty easy to be within 3 or 4 inches at 100, and often closer.

 

[lucky7]

I splurged on a Site-A-line from Alley Supply, have never looked back. Jack Sweaney who developed it in WW2 used it for aligning the bores on ships barrels and then to rifle applications.   Not for the faint of heart