Mold For 9mm-.38/.357

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  • Last Post 21 March 2026
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Keep Trying posted this 15 March 2026

Do any of you have experience with a  mold in the 124-125 grain range that you find works well in the 9mm Luger as well as in the .38 Special/.357 Magnum.  I'm sure that the alloy would have to be varied to adjust the diameter as well as to allow for pressure differences.

The Lee 124 grain truncated cone tumble lube looks good. It appears that you could crimp in the top grove for smooth loading in a revolver and the flat point would be safe in a tube magazine.

 

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Aaron posted this 15 March 2026

The Lyman 356402 TC bullet at 120gr works fine in either but especially well in absolutely any 9mm pistol. It will chamber in any barrel due to the TC design.

The Lyman 356637 is a 124gr HP bullet. I use that one in both the 38 Spl and the 9mm pistols and revolvers. Great bullet.

With rifle in hand, I confidently go forth into the darkness.

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delmarskid posted this 15 March 2026

I have used a lot of the Lee 125 flat round nose plain based bullet for 38/357. It’s a six cavity and they cast at about . 358”. I size to .356” for the nines and .358” for the revolvers. Accuracy and feeding have been very good.

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Boschloper posted this 16 March 2026

I have used the Lyman 358242 in both 9mm and .357 mag.  It works very well in both.

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lotech posted this 16 March 2026

I've tried many mould designs, maybe a dozen, since I started handloadng for the 9mm cartridge about 1988. The best (most accurate) has been the obsolete Lyman .38 Special  #353212. Bullets are app. 150 grain round nose of about about 13-14 BHN and sized to a hair over .358" using a .359" SAECO size die.

Sizing diameter may need some variance from one gun to another, but my bullets work fine in a Beretta 92F, a Walther P4, and a Sig P226. I use Bullseye powder, but HS-6 is a close contender for best accuracy.  

I'm quite sure there are similar mould designs available as the #358212 my be hard to find today. Some prefer smaller diameter bullets and some guns may require them, so I'll not argue the point, but I've always seen best accuracy in the 9mm with bullets larger than .356". 

I'm curious as to how softer bullets (1:20 alloy) would work work but have never gotten around to trying them. I get no leading with the bullets I use.   

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Keep Trying posted this 16 March 2026

Delmarskid. For the 38/357 do you roll crimp the Lee bullet in the upper lube grove?

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max503 posted this 16 March 2026

Do any of you have experience with a  mold in the 124-125 grain range that you find works well in the 9mm Luger as well as in the .38 Special/.357 Magnum.  I'm sure that the alloy would have to be varied to adjust the diameter as well as to allow for pressure differences.

The Lee 124 grain truncated cone tumble lube looks good. It appears that you could crimp in the top grove for smooth loading in a revolver and the flat point would be safe in a tube magazine.


I've had good luck with that Lee 124 TCTL.  But lately I've been loading both 357 and 9mm with .7CC's of Bullseye under the Lee 95 grain RNFP.  They both work good.  

I like using scoops.  Setting powder measures is a pain.  

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delmarskid posted this 17 March 2026

This bullet has a crimp groove. I ignore it for the 9mm and do the crimp behind it on the forward drive band seating the bullets out a bit.

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Keep Trying posted this 21 March 2026

Thanks everybody.

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