reamer with no throat

[memilanuk]

Hello,

I've been looking at various reamer prints and specs, and some of them come listed as 'no throat'. My understanding,which is always suspect ) is this is so the same chamber reamer can be used with separate throating reamers depending on what the end user wants the barrel for i.e. say a .308 Win 95 Palma reamer with no throat could cut a chamber in one barrel and then be throated short for use with a 155gr bullet, or used in another barrel and throated long for use with 210gr VLDs. Is that about right?

Next item: pluses and minuses of getting a chamber reamer with no throat and using separate throating reamers? For those of you who are active gunsmiths for hire, which do you prefer customers who want to order their own reamers to get, if you had a say in the matter: separate chamber and throating reamers, or one reamer set cut both together?

Thanks,

Monte

 

[Rustystud]

Monte:

The PT&G 95 Palma Reamer with no throat would not be a 95 Palma Reamer. Just a throatless 308 match reamer. The 95 Palma reamer is designed to shoot 155 grain bullets,Sierras). It is throated slightly shorter than the 308 Bisley 150 rule reamer. Either of these reamers is available off the shelf from Dave Kiff at PT&G. The nice thing about a fixed throat reamer is it can't over cut a throat,fixed throat length. Cutting a throat with a throating reamer is like cutting butter with a laser. There is such little resistence one can hardly tell one is cutting the rifling out. I have numerous times messed up cutting throats because it is so easy to do. Set backs are hell.

Nat Lambeth

 

[tightneck]

Monte:

The PT&G 95 Palma Reamer with no throat would not be a 95 Palma Reamer. Just a throatless 308 match reamer. The 95 Palma reamer is designed to shoot 155 grain bullets,Sierras). It is throated slightly shorter than the 308 Bisley 150 rule reamer. Either of these reamers is available off the shelf from Dave Kiff at PT&G. The nice thing about a fixed throat reamer is it can't over cut a throat,fixed throat length. Cutting a throat with a throating reamer is like cutting butter with a laser. There is such little resistence one can hardly tell one is cutting the rifling out. I have numerous times messed up cutting throats because it is so easy to do. Set backs are hell.

Nat Lambeth

I couldn't agree more, throaters are a PITA. I much prefer my chamber reamers ground with the throat included. I have throaters in 5 different calibers, but only use them if I absolutely have to.

 

[Eddie Harren]

Rusty, I would have thought that when using a separate throater, that a micrometer adjustable reamer holder would be the ticket. I don't use one but I usually make up a dummy case, with the desired bullet seated to the desired length and soldered in place. I use this case like a headspace gauge, only for setting the throat.

 

[Preacher]

I have one of those handy dandy MARS units and still don't like the idea of a separate throater unless it was absolutely needed for a particular project..
That MARS would sure be a great help keeping a throater consistent and where it belongs though.....

 

[WayneShaw]

Use your fingers. Hold the throater shaft with your fingers white you advance it with the tailstock. Have an indicator on the tailstock quill or watch the handwheel scale.

You can feel when the throater touches the rifling, and when that happens, set zero or record the scale reading.

Your fingers can feel it. If you go real slow you can almost hold the throater shaft with your fingers while it cuts, it don't take much.