Author Topic: Sizing Die size???  (Read 656 times)

Offline Slamfire

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Sizing Die size???
« on: September 24, 2023, 12:45:08 PM »
 I have a Lyman 457121 mould it drops .457-..459 (20-1 mix) or 11-13 BHN +-. I am now PC'n my cast bullets for all "weapons" ( Drill Sgt. stuff). I am loading these for my (UGLY) 45-70 #5 RB, i am making a new resizing die, should i make it .456 or .457 and PC, or PC as cast then resize to .458, opinions please.

  coffee's ready,  Hootmix.

Offline Coffinmaker

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Re: Sizing Die size???
« Reply #1 on: September 25, 2023, 07:43:08 AM »

Ah well,

Without knowing the actual bore dimensions, any suggestion would be meaningless.  Your projectiles should finish out at a Half thou or full thou over bore diameter.  Slug the bore before going forward making a new die.

Offline Slamfire

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Re: Sizing Die size???
« Reply #2 on: September 25, 2023, 10:29:41 AM »
 Sorry i should have posted the bore, i sluged the bore it mic'd at .4572.

  coffee's ready,  Hootmix.

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Re: Sizing Die size???
« Reply #3 on: Today at 08:57:47 PM »

Offline Coffinmaker

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Re: Sizing Die size???
« Reply #3 on: September 27, 2023, 08:37:05 AM »

 :) Slammer  ;)

Um OK, sorta my bad.  But and however, if the raw bullet drops from the mold at 457 - 459, the new sizing die should be 458 (based on your bore) and the under size bullets go back inna pot as the undersize bullets won't actually "size up"  ::)

Offline Hair Trigger Jim

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Re: Sizing Die size???
« Reply #4 on: September 27, 2023, 09:13:07 AM »
The able woodcrafter didn't specifically mention it, but in your direction, I would think you'd powder coat before sizing.  That may also help with some of the undersize bullets.

Offline Dave T

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Re: Sizing Die size???
« Reply #5 on: September 28, 2023, 12:51:51 PM »
Powder coat! Good grief, ya mean we aren't talkin' about loading black powder? Had I only known...

Dave

Offline Slamfire

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Re: Sizing Die size???
« Reply #6 on: September 28, 2023, 03:54:11 PM »
 Dave T, (laughing), i are a heather'n shooter. Hair Trigger, i did (do) powder coat 1st, then size to .458, i just made me a .458 sizer for my Lyman 450 w/o lube holes it's strickle for PC'd and they all miced .458. This is my first go at 45-70's. I am now making a neck expander & neck sizer combination to use in an old LEE die i  have setup for this purpose.

  coffee time,  Hootmix.

 

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