Gunsmithing Throating Reamers

[Mordamer]

Do most of you order reamers with an exact throat length for a customers build or do you order finish reamers with short throats and use a throating reamer to make the throat to the desired depth?

I am considering the latter option so that I can accommodate more throat length options with a single finish reamer.

 

[TC308]

I've been using throating readers on my last couple, but if I was doing it for anything other than for myself and a couple friends, I'd get readers to my spec. Not hard but very time consuming for me. I'd rather cut the chamber and be done.

 

[Supersubes]

I like the idea of buying short throated reamers and then throating to the application. Seems like it should work fine, especially if done all in the same setup at the time of chambering. There are some that are very opposed to it though. I bought a 300 norma reamer recently, which was ground specially for the flatline 198. Very short freebore. If it doesnt like them, I'll be pushing the throat out about .1"

 

[Edds]

If you look at Greg Tannel's reamer list you will see what his opinion is. It appears he cuts the chamber, the neck, and the throat in three separate steps.

 

[Supersubes]

Ive spoken to greg about that. He pretty much demands a dummy round just for that purpose.

 

[Messmaker]

Who is using the PTG uni-throater and why? Is this a good system or are there better ways of doing it?

 

[WarbirdWeaponry]

I have had success with a 6mm PTG uni-throater in several barrels. It uses the same bushings as the chamber reamer and as long as you cut the chamber straight the body will keep the throat in line.

 

[Keith Johns]

We won't use throaters, and have a finishing reamer for every throat length/ freebore dimension we want. Can't get any squarer than doing it all with the finisher.


It means have a lot of reamers.

 

[Keith Johns]

This is odd.. my browser isn't letting me post consistently.

 

[LRI]

I have an extensive tool package for my lathe. Over 150 carbide, custom built (literally, very different cutter geo and flute count than what is considered to be conventional) tools in inventory. It's better to have a single tool because of time/liability. Why fart around if you can get it all at once?

That said, so long as you are careful and pay attention, there's no reason you can't make a paper pounder with multiple tools. I own these as well and from time to time a situation dictates their use.

-The bullet always tells the truth.

 

[300sniper]

I think you'd have to try hard to get a throating reamer to cut off center. Actually, I'm not sure you could if you tried. I agree, having a single form tool is the way to go as you can tell the customer exactly what they have, and be able to back it up, but I don't see lengthing the throat of a new chamber being much of a problem, other than than time consumption.

 

[thecontract]

Do most of you order reamers with an exact throat length for a customers build or do you order finish reamers with short throats and use a throating reamer to make the throat to the desired depth?

I am considering the latter option so that I can accommodate more throat length options with a single finish reamer.

My last 2 rifles in 308 were chambered with my Palma 95 reamer... What I hope to be my last purpose built hunting rifle has a chamber in 6.5x55 with a somewhat short throat. I sent a dummy round to PT@G to set the throat, neck and body dimensions so that I have what I want, not what a reamer company thinks I need.