45lc blackhawk. Needs cylinder throats reamed.

[crow#2]

I've never had this type work done. Only reason I would do it is I don't want a problem later or to high of pressures.
Can I just shoot it or is it dangerous. And who do you reccomend for the job?I know I can buy reamers but this is not up my alley.
Thanks

 

[Cholo]

What do they measure?

 

[hittman]

Why do you think the gun needs work?
Something Ruger can address for you?

 

[crow#2]

from the reading I've done.i literally can not drive the .452 lrnfp bullet through the cylinder. I'm ok with it as long as it's not dangerous pressure wise or short term damage to the gun. Read that it can cause peening of the cylinder I believe. Whatever that means.

 

[hittman]

How's it shoot?
You think the gun could be dangerous ….. new model? Old model?

 

[crow#2]

Shoots great with copper jacketed factory loads .It's a new model blackhawk.

 

[crow#2]

What do they measure?

The throats measure.445
The lead bullets are.452 the copper jacketed are .451
Sorry I had the jacketed measurement wrong. I corrected it.

 

[hittman]

Ask Ruger if it's in spec.

 

[crow#2]

good idea

 

[rkrcpa]

Those throats sound awfully small, how did you measure them?

If they really are that small I would expect excess pressure and maybe sticky extraction.

 

[crow#2]

measured with a digital caliper set. The bullets measure almost exactly what they should. Like I posted earlier I could not drive the .452 lead bullet through the cylinders. With hammer and dowel.

 

[crow#2]

I'm not a competitor just a old guy that loves to shoot and tinker with guns.

 

[Dave P.]

Sounds pretty tight to me also, second the how measured question.
Edit I see you used a caliper.....a standard caliper will not work well for that.
Beg or borrow some gauge pins.
A .452 dia. bullet will be hard to push through a .452 bore.
If you have any .451 or smaller you may try them...guessing Ruger shoots for
about .452---.453 as "spec"

 

[RoninPA]

If they truly turn out to be too small, contact 2 dogs ( 2(space)dogs ) (Fermin Garza) and he can tell you what he can do for you. He is well known for his cylinder work amongst other things with firearms and has pretty quick turn time.

 

[crow#2]

Here's a picture of measuring.Hard to hold everything and get a pic.

 

[hittman]

Yes YES … what Ron said about Fermin.
He worked absolute magic for me on the cylinder for an OM 30 Carbine.

 

[crstrode]

Shoots great with copper jacketed factory loads .It's a new model blackhawk.

It ain't broke.
If it ain't broke, don't fix it.

 

[hittman]

Winner winner chicken dinner

 

[Dave P.]

Here's a picture of measuring.Hard to hold everything and get a pic.

OK...that don't work on smaller diameter bores.
Short explanation....the faces of the caliper used to measure a inside diameter have small "flats"
on them and won't let you get a "true" measurement. You are actually making contact at 4 points.
Using them on IDs. of larger diameter for a somewhat "rough" measurement they are sorta ok.
As a visual to what I'm talking about envision a square peg in a round hole type of thing.

 

[crow#2]

If they truly turn out to be too small, contact 2 dogs ( 2(space)dogs ) (Fermin Garza) and he can tell you what he can do for you. He is well known for his cylinder work amongst other things with firearms and has pretty quick turn time.

Thanks