9x25 Dillon first attempt

Started by Mike D, March 02 2020 10:44:04 AM MST

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Mike D

These aren't actual loaded rounds, just some dummies that I seated bullets into cases that I formed from 10mm cases. Found out quickly that the Dillon die set does not expand the case mouth to allow the bullets to be seated so I had to add that extra step into the mix.

These are seated at 1.555" using .355 115 9mm bullets. Do these look right? They seem to be set awful deep in the case to me. Does the 9x25 use .355 diameter bullets or .357 diameter or does it matter?

These will be fired in a Glock 29 with a Bar-Sto 9x25 barrel.




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The_Shadow

#1
Hell Mike D, you might need to be vey careful using the FMJ 9mm bullets as the OGIVE radius may allow bullet setback.  The straighter sided bullets tend to be better overall.
Using the Glock 29, you could load these longer using the FMJ you might be able to load them Longer 1.260" or 1.2650" and 1.2655" for more safety margins against bullet set back.

The 0.355" bullets usually will work but I have used the ZERO brand 38Super bullets that are 03560" and have also shot some of the 0.3570" bullets from my guns without issues.
Bullet like the Hornady and others with the mostly straight sides tend to be better to prevent setback and actually more accurate in the long run...

Link to Roze Dist. for the Zero Brand bullets, I like the 121 grain & the 125 grain JHPs
http://www.rozedist.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=RZD&Category_Code=ZBJ-38SUP
The "10mm" I'm Packin', Has The Bullets Wackin', Smakin' & The Slide is Rackin' & Jackin'!
NRA Life Member
Southeast, LoUiSiAna

Mike D

Thanks for the response Shadow.

That is exactly what I was concerned about. I figured something more like a truncated cone style would be preferred.

As to defense loads, would the 147 9mm Gold Dots be preferred or the 125 or 135 Gold Dots for the 357 Sig get the nod?


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The_Shadow

#3
Most 9mm bullets are designed to work in their velocity ranges of 9mm, the 9x25 exceeds that parameter, but they can still be effective are explosive frag nasty!
357Sig bullets are closer to the 9x25 velocity parameters, but they can be hard to find at times.
I have turned those ZERO 121 grain bullets inside out in water jug test...


Other bullets loaded
The bullet on the left are 357 the ones on the right are 356 Zero 121
The "10mm" I'm Packin', Has The Bullets Wackin', Smakin' & The Slide is Rackin' & Jackin'!
NRA Life Member
Southeast, LoUiSiAna

sqlbullet

Shadow,

Have you tried any traditional hardcast (12-15 bhn) in a truncated cone with these bullets?  These may expand well given the velocity even without a hollow-point, given the velocities.

TonyRumore

#5
Most of you guys probably weren't loading the 9x25 prior to 1994, but back then, there were almost no suitable bullets for the cartridge and those that would work, were extremely light.
Normal weight bullets all ended up seated like the OP's above.  If it hadn't been for the 357 Sig showing up in 1994, the 9x25 would have died right there.

The 357 Sig required 9mm bullets with a much shorter front end, so the bullet manufacturers either changed their designs or added new designs that would work in the .357 Sig.
9mm bullet boxes were specifically labeled "357 Sig" so the user would know that those 9mm bullets were short enough to work in the Sig case.......and in the 9x25.

Tony

The_Shadow

sqlbullet, yes the first testing I did were with some cast LEE 122 grain TC bullets sized to 0.3565".  I am loading the Lyman Devastator 125 grain cast HP shown above @1750 fps...


TonyRumore, you're right early time the bullet selection wasn't the greatest for the 9x25Dillon.  Many more choices that work/function reliably these days.
The "10mm" I'm Packin', Has The Bullets Wackin', Smakin' & The Slide is Rackin' & Jackin'!
NRA Life Member
Southeast, LoUiSiAna

TonyRumore

I believe the die set that I bought for the 9x25 around 1992 had a small piece of paper included that listed the very few bullets that would actually work.
If memory serves, there were only 2 or 3 on the list and one was the 115gr Winchester Silver Tip.  Of course those were completely unavailable in bulk, so I had to buy loaded 9mm ammo and pull the bullets to use them for the 9x25 Dillon.  It was really a fiasco and a bad cartridge design at the time.....except for a very narrow window of usefulness.

Tony


Mike D

These look a bit better.

.357" 135 Gold Dot SB.






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The_Shadow

Mike D, they do look better... What is your Cartridge Overall length with the 135 Gold Dots?
are you using the Dillon Dies?  What about the case neck expander?  I have been using the RCBS 9mm expander to do mine, because it is longer helps keep the case necks straighter and really uniform.
The "10mm" I'm Packin', Has The Bullets Wackin', Smakin' & The Slide is Rackin' & Jackin'!
NRA Life Member
Southeast, LoUiSiAna

Mike D

Quote from: The_Shadow on March 06 2020 02:05:34 PM MST
Mike D, they do look better... What is your Cartridge Overall length with the 135 Gold Dots?
are you using the Dillon Dies?  What about the case neck expander?  I have been using the RCBS 9mm expander to do mine, because it is longer helps keep the case necks straighter and really uniform.

Those are set at the same 1.255 that I set the previous 9mm round nose bullets at.

Yes I am running the Dillon dies. I'm not sure anyone else makes them?

Currently I'm just running a Hornady expander but may go to a mandrel expander in the future.


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