Ive got a couple firearms Id like to try a bigger cast bullet in
(Microgroove among others)

My molds will cast a larger bullet..say .461...but I need to size to
...459

I have, lets say ,a lubricator/ sizer die that will do .457

Any good way to open them up .002?

One assumes that they are harder than hell, and I dont have a good way
to id grind them and keep out taper.

Any suggestions or ?

I have a few extra dies so I can experiment

Just pondering a bit.

Gunner
The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie

On Fri, 01 Mar 2013 06:28:56 -0800, Gunner
wrote:

Ive got a couple firearms Id like to try a bigger cast bullet in
(Microgroove among others)

My molds will cast a larger bullet..say .461...but I need to size to
..459

I have, lets say ,a lubricator/ sizer die that will do .457

Any good way to open them up .002?

One assumes that they are harder than hell, and I dont have a good way
to id grind them and keep out taper.

Any suggestions or ?

Before the jig grinder was invented, that kind of work (opening up
hardened drill jigs, mostly) was done in a lathe with a high-speed
internal grinder.

A Dremel in your tool post works.

--
Ed Huntress



I have a few extra dies so I can experiment

Just pondering a bit.

Gunner
The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie

On Fri, 01 Mar 2013 09:32:14 -0500, Ed Huntress
wrote:

On Fri, 01 Mar 2013 06:28:56 -0800, Gunner
wrote:

Ive got a couple firearms Id like to try a bigger cast bullet in
(Microgroove among others)

My molds will cast a larger bullet..say .461...but I need to size to
..459

I have, lets say ,a lubricator/ sizer die that will do .457

Any good way to open them up .002?

One assumes that they are harder than hell, and I dont have a good way
to id grind them and keep out taper.

Any suggestions or ?

Before the jig grinder was invented, that kind of work (opening up
hardened drill jigs, mostly) was done in a lathe with a high-speed
internal grinder.

A Dremel in your tool post works.

Ive got a couple tool post grinders...just really concerned about
keeping it from grinding a taper. It needs to be in the 10ths for
square.

Gunner

The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie

On Fri, 01 Mar 2013 14:00:53 -0800, Gunner
wrote:

On Fri, 01 Mar 2013 09:32:14 -0500, Ed Huntress
wrote:

On Fri, 01 Mar 2013 06:28:56 -0800, Gunner
wrote:

Ive got a couple firearms Id like to try a bigger cast bullet in
(Microgroove among others)

My molds will cast a larger bullet..say .461...but I need to size to
..459

I have, lets say ,a lubricator/ sizer die that will do .457

Any good way to open them up .002?

One assumes that they are harder than hell, and I dont have a good way
to id grind them and keep out taper.

Any suggestions or ?

Before the jig grinder was invented, that kind of work (opening up
hardened drill jigs, mostly) was done in a lathe with a high-speed
internal grinder.

A Dremel in your tool post works.

Ive got a couple tool post grinders...just really concerned about
keeping it from grinding a taper. It needs to be in the 10ths for
square.

Over the length of a die, the straightness should be in the
millionths. With a tool post grinder, you should be relying on the
straightness of the lathe bed, and only over a very short length.
Don't, for God's sake, use the compound.

And spark-out. It will only take a minute.

I've done similar things, Gunner, on my old South Bend. No taper.

--
Ed Huntress


Gunner

The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie

"Ed Huntress" wrote in message
...
On Fri, 01 Mar 2013 06:28:56 -0800, Gunner
wrote:

Ive got a couple firearms Id like to try a bigger cast bullet in
(Microgroove among others)

My molds will cast a larger bullet..say .461...but I need to size to
..459

I have, lets say ,a lubricator/ sizer die that will do .457

Any good way to open them up .002?

One assumes that they are harder than hell, and I dont have a good way
to id grind them and keep out taper.

Any suggestions or ?

Before the jig grinder was invented, that kind of work (opening up
hardened drill jigs, mostly) was done in a lathe with a high-speed
internal grinder.

A Dremel in your tool post works.

--
Ed Huntress

Can you say Sunnen hone?
Piece of cake---capable of working to millionths in quailified hands.

Harold

On Mon, 04 Mar 2013 07:38:25 GMT, "Harold & Susan Vordos"
wrote:


"Ed Huntress" wrote in message
.. .
On Fri, 01 Mar 2013 06:28:56 -0800, Gunner
wrote:

Ive got a couple firearms Id like to try a bigger cast bullet in
(Microgroove among others)

My molds will cast a larger bullet..say .461...but I need to size to
..459

I have, lets say ,a lubricator/ sizer die that will do .457

Any good way to open them up .002?

One assumes that they are harder than hell, and I dont have a good way
to id grind them and keep out taper.

Any suggestions or ?

Before the jig grinder was invented, that kind of work (opening up
hardened drill jigs, mostly) was done in a lathe with a high-speed
internal grinder.

A Dremel in your tool post works.

--
Ed Huntress

Can you say Sunnen hone?

I can say it. I just can't afford it.

--
Ed Huntress


Piece of cake---capable of working to millionths in quailified hands.

Harold

On Mar 4, 8:38*am, Ed Huntress wrote:


Can you say Sunnen hone?

I can say it. I just can't afford it.

--
Ed Huntress


The used ones are not all that expensive. There is one on Ebay with a
$1200 buy it now, and several more at under $2000 . But they are not
exactly hobby machines. I could probably figure out a use for one
every year or two. The same money could be spent on a vertical band
saw and that would get a lot more use.


Dan

On Mon, 4 Mar 2013 06:07:25 -0800 (PST), "
wrote:

On Mar 4, 8:38*am, Ed Huntress wrote:


Can you say Sunnen hone?

I can say it. I just can't afford it.

--
Ed Huntress


The used ones are not all that expensive. There is one on Ebay with a
$1200 buy it now, and several more at under $2000 . But they are not
exactly hobby machines. I could probably figure out a use for one
every year or two. The same money could be spent on a vertical band
saw and that would get a lot more use.


Dan

For a little job like Gunner is talking about, the quickest and surest
way to do it, absent a $1200 tool, is to use his internal grinder.

I think he's overly worried about taper. He shouldn't have any
measurable taper over that short stroke. If he does, he has bigger
problems with that lathe.

--
Ed Huntress

On Mon, 4 Mar 2013 06:07:25 -0800 (PST), "
wrote:

On Mar 4, 8:38*am, Ed Huntress wrote:


Can you say Sunnen hone?

I can say it. I just can't afford it.

--
Ed Huntress


The used ones are not all that expensive. There is one on Ebay with a
$1200 buy it now, and several more at under $2000 . But they are not
exactly hobby machines. I could probably figure out a use for one
every year or two. The same money could be spent on a vertical band
saw and that would get a lot more use.


Dan

I happen to have a rather nice Delta labled Milwaukee 20" metal/wood
vertical bandsaw for sale at the moment. And the tires are in very
good shape.

$1800 and its yours

Gunner

The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie

wrote in message
...
On Mar 4, 8:38 am, Ed Huntress wrote:


Can you say Sunnen hone?

I can say it. I just can't afford it.

--
Ed Huntress


The used ones are not all that expensive. There is one on Ebay with a
$1200 buy it now, and several more at under $2000 . But they are not
exactly hobby machines. I could probably figure out a use for one
every year or two. The same money could be spent on a vertical band
saw and that would get a lot more use.

Dan
---------------------------------------------------------------------------------------------
True, that.

If you've never operated a Sunnen, it might be hard to understand how useful
one can be. They shine the very best in circumstances that would normally
border on the impossible for the shop---such as sizing small bores with
precision, especially if they're made of hardened materials.

Older models, such as the 1290-D, are not all that expensive. The real
cost is in the mandrel sets.

In this instance, Gunner most likely knows of at least one shop that is so
equipped. If they happen to have the proper sized mandrel, it would take
only a couple minutes for an operator to resize his sizing die. That's the
direction I'd pursue if I was in his position. Attempting to grind such a
small diameter could prove to be rather difficult, especially considering
the lack of quality in the spindles of most small devices. For a swaging
die, finish should be quite good----a tall order from a cheap spindle.
By sharp contrast, a hone would yield a wonderful, round, straight hole.
They're very capable of correcting all manner of errors in bores, and
require no setup. Install the mandrel, turn on the spindle and start
honing.

Harold

Harold

On Mon, 04 Mar 2013 07:38:25 GMT, "Harold & Susan Vordos"
wrote:


"Ed Huntress" wrote in message
.. .
On Fri, 01 Mar 2013 06:28:56 -0800, Gunner
wrote:

Ive got a couple firearms Id like to try a bigger cast bullet in
(Microgroove among others)

My molds will cast a larger bullet..say .461...but I need to size to
..459

I have, lets say ,a lubricator/ sizer die that will do .457

Any good way to open them up .002?

One assumes that they are harder than hell, and I dont have a good way
to id grind them and keep out taper.

Any suggestions or ?

Before the jig grinder was invented, that kind of work (opening up
hardened drill jigs, mostly) was done in a lathe with a high-speed
internal grinder.

A Dremel in your tool post works.

--
Ed Huntress

Can you say Sunnen hone?
Piece of cake---capable of working to millionths in quailified hands.

Harold

I actually own a Sunnen. Not a bad idea at all. Ill have to see if the
guy is done using it, and if he left me any of the smaller tooling

Gunner

The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie

On Mar 1, 9:28*am, Gunner wrote:

Any good way to open them up .002?

One assumes that they are harder than hell, and I dont have a good way
to id grind them and keep out taper.

Any suggestions or ?



I would just make a die out of whatever steel you have handy that
machines easily. Are you really going to use it enough to worry about
wear? I would mike the first couple of bullets sized and then mike
again when you have sized 50 bullets. That would give you an idea of
the rate of wear. My bet is that there is not a lot of wear.

If i am wrong , then i would take a die and case harden it.


Dan

On Fri, 1 Mar 2013 13:39:04 -0800 (PST), "
I would just make a die out of whatever steel you have handy that
machines easily. Are you really going to use it enough to worry about
wear? I would mike the first couple of bullets sized and then mike
again when you have sized 50 bullets. That would give you an idea of
the rate of wear. My bet is that there is not a lot of wear.

If i am wrong , then i would take a die and case harden it.


Dan

That..is not a bad idea. I do have a machine shop and a heat treating
oven.

Not a bad idea at all.

Thanks!! Id not considered making my own dies, oddly enough. Blush

Many many thanks!! for slamming my head against reality!

I honestly have no idea of why I didnt think of making all new dies
from scratch. Crom knows I have the material and the tools...and maybe
the skills.

Gunner

The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie