The good the bad and the ugly

[BowerR64]

So a few months back another member posted some snapshots of a cheap bore scope he got off e-bay so i went and found one took about a month to get it then after messing with it a few days the LEDs quit. They refunded my money and i found another one again took 30 some days to get it also.

Been messing with it tonight and took some screen caps of a few of my guns, man i guess i didnt get the brass frame Remington dry thats the UGLY!

Ive had the best luck with A and C. The brass Remington ive actually put all 6 shots in pretty much the same hole. The brass 1851 was good right from the getgo the other 2 ive yet to get them good.

What im showing is not how dirty my guns are i know they are, but how the chambers line up with the barrel. The 2 ive had the best luck with look pretty uniform as far as when the bolt locks up it looks aligned good. The other 2 seem to be a bit off.

If anyone is interested in one of these IMO its not a bad tool to have for $10. i got it to use for my car, i want to peek down into the sparkplug holes to look at my pistons but it fits down the .44 barrel pretty good. I can see this being a good tool to setup timing.

This is the one i got on e-bay: Item # 251550806790 i got the 2M one

The first one i got was a 5M and its focus seem to be set for infinity, maybe the length makes it useful for a different job and the 2M more for close up? This new one is set for about 2" focus its more of a "macro" bore scope.

 

[Crawdad1]

Good info Bower, but I like what you did with that brass framed Remmy, I think it looks good.

That bore scope is a good idea, I need to do that with mine.

 

[elhombreconnonombre]

2nd that on the 1858...looks like a shiney plum brown???
Also is that bright circle in pic A and C and partial shiney crescent in pics B and D surrounding the barrel bore in the pics the front the face of the cylinder or something else? If indeed that is the case do not the cylinder bores appear to be undersized?

 

[4v50 Gary]

We used to look at barrels through the school's bore scopes. It was quite the peep show.

One thing we were cautioned on is that you can never tell what makes a barrel shoot well. Some pitted and poor looking bores could shoot like a champ. Some shiny and clean bores could throw the balls all over the paper. The proof is in the pudding. How does it print?

 

[Crawdad1]

One thing we were cautioned on is that you can never tell what makes a barrel shoot well. Some pitted and poor looking bores could shoot like a champ. Some shiny and clean bores could throw the balls all over the paper. The proof is in the pudding. How does it print?

That's good information right there.

 

[whughett]

well Mr. Bower I've said it before and I'll say it again your photography is outstanding. Avocation or vocation if you shoot a gun as well as you do a shutter you should be on the national circuit. JMO.

 

[mykeal]

All 4 guns suffer from UCD (Undersized Chamber Disease), so I'm not sure that misalignment is necessarily a serious problem in this case. If the chambers were reamed to the proper size, then the misalignment would matter more. Makes one wonder whether it's worth the cost/effort to ream the chambers.

Great tool for making the diagnosis and providing the data necessary to make the decision. Thanks for the post.

 

[Panzerschwein]

^ +1!

There is great truth in the post! Putting lead to paper is the best way to know how a gun will shoot.

 

[BowerR64]

D is the lyman kit my dad got in the 1970s and tried to blue it himself and he got mad it kept turning out purple so he put it away and never shot it.

A couple of them have been reamed i believe the euro arms and the 1851 B and C i believe ill heve to check.

The light rings are the gaps between the forcing cone, when the scope is down in the barrel there is little to no light only whats on the tip of the scope so any light that comes in is washed out maybe giving the illusion they are under sized?

Ive shot the 1851 and it shot awsome, i didnt have to do much to it. It is a 2014 date code $150. gun from cabelas december of 2013 when i got it.

The brass frame remington also i shot MANY times (the dirty one thats all rusty looking) and it shot really good. It even has bad spots in the bore near the forcing cone but the euroarms for me shot the worst i didnt shoot it alot and i dont think i have tried .457 balls in it i only tried .454 after i reamed it.

 

[swathdiver]

Looks like a bad prep on a colonoscopy!

 

[mykeal]

The light rings are the gaps between the forcing cone, when the scope is down in the barrel there is little to no light only whats on the tip of the scope so any light that comes in is washed out maybe giving the illusion they are under sized?

??? I don't understand this paragraph. There's no 'illusion' here.

The light rings are the gaps between the forcing cone and what?

How does light coming in get 'washed out'?

 

[EvilGenius]

So let me get this straight.

A & C is theoretically what we want to see and B & D are not?

How do you account for the latter if the bores really are misaligned?

 

[TheRodDoc]

You can't use a bore scope to tell if chamber is centered or if it is larger or smaller dia. then the barrel bore. A lens sees only from it's center. Same as your eye. You would have to have the exact lens center at the exact bore side to tell if cyl. bore was bigger or smaller. Same thing goes if the scope is not exactly centered in bore. If off slightly then cyl. bore will look off center also.

 

[mykeal]

Your drawings properly illustrate the nature of the error, but they need to be to scale to show the magnitude. In this case I believe the error to be rather small, thus the conclusions valid.