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Subject Topic: Top Punch - Needs and Uses Post ReplyPost New Topic
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sailcapt
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Posted: March 28 2017 at 4:22pm | IP Logged Quote sailcapt

This may be a dumb statement but, I've cast bullets for .45 / .38 / 32-20
/ 9 mm etc. with no problems with fit or finish.
I now have a friend telling me I need to start using the top punches and
size the bullets.
Never having had any issues with my bullets, are lube presses (I use
RCBS equipment) - Top Punches really needed in bullet casting?
I guess I'm looking for some step by step instructions in this matter, as
real concern is getting the best of me.
Thanks for any help.
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joed
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Posted: March 28 2017 at 4:31pm | IP Logged Quote joed

Not sure I can help you as I use a Magma.   I use one top punch for
all and it just pushes the bullet in.   Can't see where it would be
much different on anything else though.

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richhodg66
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Posted: March 28 2017 at 7:43pm | IP Logged Quote richhodg66

If your bullets are shooting well, why worry?

I think sizing is kind of over rated. If they chamber like they should and shoot well, no problem. Molds often cast oversized. If that makes chambering difficult, then you need to size them.

Truthfully, for most sizing, the Lee push through dies work fine and don't require specific top punches. The liquid alox is good lube and works.

If you're happy with your current cast bullets, don't worry about it. If it ain't broke, don't fix it.

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Old Ranger
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Posted: March 28 2017 at 10:14pm | IP Logged Quote Old Ranger

If you're using a conventional lubricating/sizing device and not the corresponding top punch I'm amazed you don't have deformed bullets and such. The top punch that matches the nose of the cast bullet keeps from deformation and further, it assists in proper alignment of the bullet entering the sizing die and not allowing it to tilt and such. Unless you cast only flatnose bullets I guess?

If you're like me and cast a wide variety of bullet shapes ya just gotta have correct fitting top punches. If not, sizing would be a series of failure with bent and crooked bullets.

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Rigmarol
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Posted: March 29 2017 at 7:49am | IP Logged Quote Rigmarol

Sailcap,

You gave us calibers but not specific bullet profiles.
If you are using your luber/sizer to just lube your
bullets and you are using a flat tipped profile, you can
get away with only a simple flat top punch.

However, if you are having to actually size down cast
bullets and using a round nose profile, you would do
well to use a top punch that fits the bullet profile.

Bottom line however, is if you are happy and your guns
are happy and your targets are happy then tell you buddy
thank you and carry on.

Edited to add:
BTW, I also use RCBS luber/sizer and I have a couple of
handfuls of top punches. I primarily use a flat top
punch and my most common bullet is cast .45, no sizing,
and lubed in the sizer with homemade felix lube.


Edited by Rigmarol on March 29 2017 at 7:50am


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joed
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Posted: March 29 2017 at 3:38pm | IP Logged Quote joed

Just realized what's different on the Magma sizer, the punch
contacts the base and pushes the bullet through nose first.   And
that's why I do not buy top punches, they aren't needed.

Geez, I haven't cast a bullet in 6 years.   I still have stock sitting
around so likely won't be casting for awhile.



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