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Ok I think I got it now
.310 cast (312x308 expander)
.358 cast (360x356 expander)

So get the big first number like 311 or 312
And smaller number 308 or 308
For 300blk
And 9mm
359 or 360
And second number 356 or 357.

I am new to casting and ordering a couple of arsenal molds for 300bkl and 9mm
My question is, if I am going .310 for blk
And .358 for 9mm
Which expanders from NOE would be best to get to flare the...

I'm about to order a couple of molds from MP and a lot saying the lee handles are more comfortable. Is it the lee 6 cavity handles that are used on the MP molds?

I have an old rock chucker, MEC matchmaster
And a lee APP
Now thinking of a progressive soon

Do you have a problem sizing down the 314 to 309?

I don't think the flat nose will work.
Has to be the point style especially to cycle in the ps90

Do you happen to have a model number.
So I can start to look for one?

My mistake should have been 7.62x39
My phone put the 25 with auto correct. I had been talking to someone about the 7.62x25 Tokarev

I do understand that you have to be very cautious on loading this round. A simple
1 or .2 gr change can cause damage.

Cool
Do you run a gas check on them after you PC or just run without one?

And it cycles good in a simi auto 300blk?

I have both a 300blk AR platform and a SKS 7.62x39.
Was looking for a good mold to cast for both if possible.
Thinking 150gr or so and plan to run supersonic.
Thanks in advance for any advice

Maybe someone can help.
I am trying to find a mold to cast for a 5.7x28 round. Need something like a 22cal .224 36gr
Spire point with a gas check or at least under 40gr.
I plan to powder coat...

Let me know if any left over