[PghJim]

This is only one test. I broke out the chronograph for the first time this year and had an opportunity to test Underwood's 357 Sig 125 gr. GD out of a 4.5" G32, and Underwood's 9x25 Dillon 125 gr GD out of a 4.6" converted G20.

5-Shot average for the 357 Sig was 1,611 fps (unbelievable), and the 5-shot average of the 9x25 was 1,646 fps. Yea, I know the 9x25 was a little faster, but not by much.

But again, this is only one test with one box of ammo each and only one barrel for each.

Other news - There have been some problems with Underwoods 357 Sig ammo failure to fire. I called and Kevin said he received a batch of hard primers, and there will not be any problems with ammo going forward.

[Tiro Fijo]

Impressive, to say the least.

[cowboy1964]

4.5" g32? Aftermarket barrel or is that a typo?

[PghJim]

Originally Posted by cowboy1964

4.5" g32? Aftermarket barrel or is that a typo?

It has a Lone Wolf barrel in it.

[BuckyP]

That's smoking velocities out of the .357. About 300+ FPS above traditional factory, no?

[Michael Rye]

Those 357 Sig velocities are too hot. That ammo seems like a kaboom waiting to happen. Be careful with it!

[Wil Terry]

Originally Posted by Michael Rye

Those 357 Sig velocities are too hot. That ammo seems like a kaboom waiting to happen. Be careful with it!

LISTEN TO THIS MAN !!

There are NO free lunches.

[rustytxrx]

Originally Posted by Wil Terry

LISTEN TO THIS MAN !!

There are NO free lunches.

I have a 6" kkm 357 sig barrel. Trying to find max load using aa#9 and blue dot, I had some pretty quick speeds. the brass in the 357 sig case starts flowing forward near max loads. I only load them in new cases now. 357 sig does not reload like a good ole straight cased pistol cartridge.

The 357 sig has a sweet spot with slower burning powders up near the top end, very consistent ignition.

I like it. eidt - in the 6" barrel

[unit1069]

I like the Speer, Remington, Federal, and Hornady .357sig rounds just the way they are. The extra velocity of the boutique ammos don't hold any attraction for me, given that for self-defense purposes the caliber unquestionably gets the job done.

On another note, some of the bullets used in boutique ammos may be driven beyond design windows, causing the bullet to significantly underperform.

[SCmasterblaster]

Is the 9x25 a bottlenecked cartridge?

[PghJim]

Originally Posted by SCmasterblaster

Is the 9x25 a bottlenecked cartridge?

It is a 10mm necked down to .355.

[WinterWizard]

Seems Underwood likes to play right at the edge of blowing up people's guns.

[dougader]

How do those 357 Sig cases look after firing, Jim?

Added: I hope this didn't come across as sarcastic. This is a serious question. Fired cases can tell you a lot. But sometimes you're way past safe pressures by the time the cases and primers show a problem, especially if you're using rifle primers.

[Adamz04]

Originally Posted by PghJim

This is only one test. I broke out the chronograph for the first time this year and had an opportunity to test Underwood's 357 Sig 125 gr. GD out of a 4.5" G32, and Underwood's 9x25 Dillon 125 gr GD out of a 4.6" converted G20.

5-Shot average for the 357 Sig was 1,611 fps (unbelievable), and the 5-shot average of the 9x25 was 1,646 fps. Yea, I know the 9x25 was a little faster, but not by much.

But again, this is only one test with one box of ammo each and only one barrel for each.

Other news - There have been some problems with Underwoods 357 Sig ammo failure to fire. I called and Kevin said he received a batch of hard primers, and there will not be any problems with ammo going forward.

Hey Jim,
How are you liking that 4.49" barrel for your 32? I've wanted an extended barrel for mine and was eyeing that same one. I don't like the ones that stick out an inch and a half so I thought that one would be just right. In your opinion is the half inch extra worth the $$? Could you maybe give us/me a pic of your 32 with the barrel in? Thanks

[PghJim]

Originally Posted by Adamz04

Hey Jim,
How are you liking that 4.49" barrel for your 32? I've wanted an extended barrel for mine and was eyeing that same one. I don't like the ones that stick out an inch and a half so I thought that one would be just right. In your opinion is the half inch extra worth the $$? Could you maybe give us/me a pic of your 32 with the barrel in? Thanks

I like it a lot. You get G31 ballistics from a G32 and there is only a half an inch sticking out. If you get a threaded barrel, I think it looks even better.

[SCmasterblaster]

Originally Posted by PghJim

It is a 10mm necked down to .355.

Thanks.

[Adamz04]

Originally Posted by PghJim

I like it a lot. You get G31 ballistics from a G32 and there is only a half an inch sticking out. If you get a threaded barrel, I think it looks even better.

Do you think there is better chamber support in the lone wolf vs stock? For underwood ammo. I recently picked up a g20 and thought about a 357 barrel for that since I have a lot of 357 ammo, but I do prefer the g32 platform over the larger frame g20. I kinda feel like the best Long term decision is to get a .40 barrel for the g20 instead of a 357 until I can get into reloading.

[PghJim]

Originally Posted by Adamz04

Do you think there is better chamber support in the lone wolf vs stock? For underwood ammo. I recently picked up a g20 and thought about a 357 barrel for that since I have a lot of 357 ammo, but I do prefer the g32 platform over the larger frame g20. I kinda feel like the best Long term decision is to get a .40 barrel for the g20 instead of a 357 until I can get into reloading.

There has never been any chamber support issue with the stock 357 barrels. My LWD is very accurate, but if I had to do it again I would have KKM make the barrel. If you call them, they can make a G32 barrel up to 5".

[rustytxrx]

Originally Posted by PghJim

There has never been any chamber support issue with the stock 357 barrels. My LWD is very accurate, but if I had to do it again I would have KKM make the barrel. If you call them, they can make a G32 barrel up to 5".

you are right. My G17 6" is a KKM the 357 sig is a lone wolf. I thought it was the other way around.

I like the 357 sig out of the G20 for hot loads. In fact I like the g20 period.

[PghJim]

Originally Posted by rustytxrx

I like the 357 sig out of the G20 for hot loads. In fact I like the g20 period.

Rusty, I have a G29 do you know if I can get a 357 sig barrel for it? If so, would the G29 mags work? I have never checked this out so I do not even know if someone makes the barrel.

[rustytxrx]

Originally Posted by PghJim

Rusty, I have a G29 do you know if I can get a 357 sig barrel for it? If so, would the G29 mags work? I have never checked this out so I do not even know if someone makes the barrel.

I have not checked lone wolf or kkm. I have shot one that my shooting buddy had. the was a thread on here some time ok.

http://glocktalk.com/forums/showthread.php?t=983399

if you find one let us know. I have a g29 and would be interested

[rustytxrx]

I think the lonewolf dist number for g29 comversion to 357sig is

LWD29357N

do a search on g29 conversion to 357 sig. there is a old thread on ar15. he used his old magazines

[RYT 2BER]

Originally Posted by WinterWizard

Seems Underwood likes to play right at the edge of blowing up people's guns.

Well underwood has sold maybe even a few MILLION rounds and hundreds of thousands have been fired. Maybe even a million who knows.

Bottom line. If it was as dangerous as you and others imply you'd be hearing about daily kabooms from underwood. But gues what? You don't.

I've read one or two stories like that about UW. probably a statistical tie with mainstream makers.

Not a bad thing though that folks like yourself stay away from UW. Leaves more for those of us who like his stuff.