Time to make the donuts....

[geo.ulrich]

I’ve been interested in trying tipping, but worried that it would distort the jacket. Is this a valid concern?

yes there is a decent chance that it will

 

[liseo]

Today I tested some .30 bullets produced without etching.
Just washing the cores with acetone.
5 shots groups, distance 109 yards, without wind flags and using a Harris bipod.
It seems to me that not doing etching didn't worsen the groups.

Let's repeat the tests.

 

[Schippergreg]

Where is the best place to order core seat punches? I recently got my order of j4 .825’s and the only 2 punches I have that are close to the correct size are .2110 and .2115. With light core seat pressure and even but minimal bleed by the .2110 is making a 67.3gr and the .2115 is still scratching the jacket at 68.3gr. I’d like to be able to get pretty close to the 68gr range.

 

[J.J. Coe]

Where is the best place to order core seat punches? I recently got my order of j4 .825’s and the only 2 punches I have that are close to the correct size are .2110 and .2115. With light core seat pressure and even but minimal bleed by the .2110 is making a 67.3gr and the .2115 is still scratching the jacket at 68.3gr. I’d like to be able to get pretty close to the 68gr range.

Percision Punch and Tooling. Here's a diagram of the line item (psp31) and I just tweaked some dimensions. The tightest tolerance is .0002 but they'll cut that in half at a slight up charge. If you go with 1.750 or 2" it may save a little money but they'll make them any length you want if you want them to match the length of your current punches. Make sure to put a +/-.001 on the lenth(mine where all within .0005).I'll also attach a description of 1 of the punches I ordered for a example.

 

[Mulligan]

Where is the best place to order core seat punches? I recently got my order of j4 .825’s and the only 2 punches I have that are close to the correct size are .2110 and .2115. With light core seat pressure and even but minimal bleed by the .2110 is making a 67.3gr and the .2115 is still scratching the jacket at 68.3gr. I’d like to be able to get pretty close to the 68gr range.

I suspect, that’s a question for your die maker.
CW

 

[jimmymac]

Percision Punch and Tooling. Here's a diagram of the line item (psp31) and I just tweaked some dimensions. The tightest tolerance is .0002 but they'll cut that in half at a slight up charge. If you go with 1.750 or 2" it may save a little money but they'll make them any length you want if you want them to match the length of your current punches. Make sure to put a +/-.001 on the lenth(mine where all within .0005).I'll also attach a description of 1 of the punches I ordered for a example. View attachment 1713860View attachment 1713861View attachment 1713862

Thanks for that. I have need for some in between diameters of what I currently have.

 

[AlNyhus]

For me, punches (core seating or point up) was always where things got murky and herky. As Randy would put it: "I bee yost in yungle all day now....."

When I was at a teachable moment (too dumb to move forward or backwards), Randy directed me to Porter Punch, instructing me to digest their catalog and call him when I got the mechanical equivalent of an ice cream headache. He threw me some lifelines and double checked my cipherin's. George Ulrich added to the education. If you've got punches already as samples, you're half way home. In the pdf attached, most can probably hop right to page 6-7 to begin the journey.

PORTER PUNCHES

porterpunch.com

https://porterpunch.com/wp-content/uploads/2020/11/INCH_CATALOG_2020.pdf

Plus, J.J.'s information is one of the most valuable things to get your hands on and your head around.

Good shootin' -Al

 

[jimmymac]

Thanks Al.

 

[J.J. Coe]

I suspect, that’s a question for your die maker.
CW

Not really........as far as core seat punches goes anyway

 

[J.J. Coe]

For me, punches (core seating or point up) was always where things got murky and herky. As Randy would put it: "I bee yost in yungle all day now....."

When I was at a teachable moment (too dumb to move forward or backwards), Randy directed me to Porter Punch, instructing me to digest their catalog and call him when I got the mechanical equivalent of an ice cream headache. He threw me some lifelines and double checked my cipherin's. George Ulrich added to the education. If you've got punches already as samples, you're half way home. In the pdf attached, most can probably hop right to page 6-7 to begin the journey.

PORTER PUNCHES

porterpunch.com

https://porterpunch.com/wp-content/uploads/2020/11/INCH_CATALOG_2020.pdf

Plus, J.J.'s information is one of the most valuable things to get your hands on and your head around.

Good shootin' -Al

Thanks Al, I feel I left alot out but the example i posted pretty much explained it.
Bullet making isn't that hard at all but sometimes finding everything you need is a challenge.

 

[jimmymac]

Bullet making isn't that hard at all but sometimes finding everything you need is a challenge.

I will let you know when the isn’t all that hard part kicks in. So far no good. Punch selection is not so simple, at least not yet with what I have on hand.

Thanks for the punch vendor information. I downloaded the catalog and will be placing an order once I sort out what I have and what I think I need.

 

[Tim Singleton]

Where is the best place to order core seat punches? I recently got my order of j4 .825’s and the only 2 punches I have that are close to the correct size are .2110 and .2115. With light core seat pressure and even but minimal bleed by the .2110 is making a 67.3gr and the .2115 is still scratching the jacket at 68.3gr. I’d like to be able to get pretty close to the 68gr range.

IME don't worry too much about hitting 68gr
if 67.3 gives the right pressure and bleed by with your setup roll with it!

 

[jackieschmidt]

IME don't worry too much about hitting 68gr
if 67.3 gives the right pressure and bleed by with your setup roll with it!

^^^^^^^^^

 

[Tim Singleton]

Thanks Al, I feel I left alot out but the example i posted pretty much explained it.
Bullet making isn't that hard at all but sometimes finding everything you need is a challenge.

I recently spoke with Sandy at Precision Punch
They will make Boat tail punches. You may have to send them an old punch to reverse engineer
I havent gotten around to doing it yet
Anyone here use them or someone else for BT punches?