Laser Boresight for the 410

[Koljec 37]

I'm looking for a laser boresighter for the 410. I see some one-size-fits-all models, but I've heard they're not as good as chambered. Only 410 chambered boresight I can find is over $200, though. Anyone have a recommendation for a chambered 410 boresight that's more affordable?

 

Or maybe there's a way to adapt a smaller caliber boresight to a 410 hull and make it fit a 410 chamber?

 

 

Thanks in advance.

Edited October 2, 2010 by Koljec

[ticknc 5]

Haven't ordered a bore sight for me yet, but the .44 Mag is about as close as I can easily find. I have heard the .45 Colt and .444 Marlin is close also, but have not seen a bore sights for these.

 

.410 Bore = .410 inches (10.4 mm)

 

.44 Magnum = .457 inches (11.6 mm)

 

.444 Marlin = .4706 inches (11.95 mm)

 

.45 Colt = .480 inches (12.2 mm)

 

Maybe someone out there has actually tried one of these bore sights in a .410?

[Koljec 37]

So if I wanted to try dropping a boresight into a 410 hull, I'd need to go smaller, with a .38 or 40S&W (both 10mm, I think?)? I wonder how well that .4mm difference would fit...

 

 

Haven't ordered a bore sight for me yet, but the .44 Mag is about as close as I can easily find. I have heard the .45 Colt and .444 Marlin is close also, but have not seen a bore sights for these.

 

.410 Bore = .410 inches (10.4 mm)

 

.44 Magnum = .457 inches (11.6 mm)

 

.444 Marlin = .4706 inches (11.95 mm)

 

.45 Colt = .480 inches (12.2 mm)

 

Maybe someone out there has actually tried one of these bore sights in a .410?

[ticknc 5]

The measurements are outside diameter. I don't know what a .410 hull inside diameter is. I would expect them all to be a little different, depending on the manufacturer of the shell, and you may have a hard time keeping it perfectly straight when you try to adapt one to a hull.

 

I did get a snug fit on a live .44 Mag round I borrowed from a buddy. I am going to order a laser bore sight for .44 Mag (.444 Marlin available as well) from Cheaper Than Dirt, along with some more Golden Bear Buckshot.

[Koljec 37]

i'll be interested to hear how it works. thanks for the ideas.

 

The measurements are outside diameter. I don't know what a .410 hull inside diameter is. I would expect them all to be a little different, depending on the manufacturer of the shell, and you may have a hard time keeping it perfectly straight when you try to adapt one to a hull.

 

I did get a snug fit on a live .44 Mag round I borrowed from a buddy. I am going to order a laser bore sight for .44 Mag (.444 Marlin available as well) from Cheaper Than Dirt, along with some more Golden Bear Buckshot.

[blogRot 0]

I have the Bushnell Laser Boresighter and functions just fine in my 410 when I have it scoped; ~$30

 

I've never used a chambered boresight so I can't compare; however, the first scoped slug shot (final zeroing) has been deadnuts on windage with only a small elevation adjustment needed - most likely due to my inexperience with sighting a scope for various distances.

 

I think the bushnell (or any equivalent 'universal') boresighter will get you really close to where you want it before having to live fire.

[Koljec 37]

Thank you. I've seen the Bushnell but wasn't sure of the quality or results. I'd prefer a universal (so I can use it with the 308, too), but I'd heard some mixed reviews.

 

 

 

I have the Bushnell Laser Boresighter and functions just fine in my 410 when I have it scoped; ~$30

 

I've never used a chambered boresight so I can't compare; however, the first scoped slug shot (final zeroing) has been deadnuts on windage with only a small elevation adjustment needed - most likely due to my inexperience with sighting a scope for various distances.

 

I think the bushnell (or any equivalent 'universal') boresighter will get you really close to where you want it before having to live fire.

[blogRot 0]

from Cheaper Than Dirt, along with some more Golden Bear Buckshot.

 

excellent pricing on that; thanks.

[ticknc 5]

i'll be interested to hear how it works. thanks for the ideas.

 

I got my Sightmark .44 MAG Chamber Bore Sight (I may do a separate post w/ photos). The first thing I notice is it has no rim or lip like the .44 Mag round I have, it's just smooth all the way. I tried it for fit in my .410 without the batteries and it slipped in fairly easily. It went past the edge of the barrel some. I was afraid I was going to lose it in there, but it fell back out when I pointed the barrel up. I measured it with my micrometer against the .44 Mag round and a spent Golden Bear hull. Of course the bore sight is the same as the .44 Mag round I have (.456 inches). The Golden Bear hull measured .469 inches, about .010 inches bigger. I tried to measure the bore with the mic, but it was not accurate and measured over .470 inches.

 

The results:

 

The choked barrel of my .410 tapers down from over .470 inches to .390 inches at the muzzle. When I drop in the bore sight it falls down into the barrel about 1.7 inches, but still stays centered in the bore. It comes out easily after a minor amount of shaking with the barrel pointed up. After installing the very small batteries, it seemed to work just fine. I used it to dial in my halo scope at about 10 feet, but need to field test with slugs for results.

 

I may try the .45 ACP version. Spec says it's .480 inches.

[Koljec 37]

Thanks for the update. I'll use your info next chance I get.

 

 

 

 

 

The choked barrel of my .410 tapers down from over .470 inches to .390 inches at the muzzle. When I drop in the bore sight it falls down into the barrel about 1.7 inches, but still stays centered in the bore. It comes out easily after a minor amount of shaking with the barrel pointed up. After installing the very small batteries, it seemed to work just fine. I used it to dial in my halo scope at about 10 feet, but need to field test with slugs for results.

 

I may try the .45 ACP version. Spec says it's .480 inches.

[blogRot 0]

Does the boresight fit into the spent Golden Bear hull?

[ticknc 5]

Does the boresight fit into the spent Golden Bear hull?

 

No, not using the .44 mag one I got.

 

 

.....I measured it with my micrometer against the .44 Mag round and a spent Golden Bear hull. Of course the bore sight is the same as the .44 Mag round I have (.456 inches). The Golden Bear hull measured .469 inches, about .010 inches bigger.....

 

[ampell 0]

When I sighted my .410 for slugs, I noticed that my iron sights worked well for birdshot, but slugs were hitting up and to the left of center quite a bit. Like 6" left and 9" up, or something like that. Does that mean that a bore sight would not be so helpful. I have the 19" barrel, Dinzag '74 style brake, brenneke silvers.

[ampell 0]

Forgot to mention that the range was 25 yards. Sighted in my Bushnell Trophy 1x conventionally.

[Koljec 37]

Forgot to mention that the range was 25 yards. Sighted in my Bushnell Trophy 1x conventionally.

 

I experienced the same up and left shift with my 410 at 25 yards using a variety of slugs -- golden bear, silver bear, remington sluggers....i'm not experienced enough to know if if was me or the gun. i had better luck at an indoor range with a paradox choke attached, but that was within 25 yards.