Polymer EAA Witness in 10mm: Consensus on hot loads?

[Snowdog]

Now that the Tanfoglio (full size) Witness P 10mm has been out for a while, are they considered good to go for the hotter 10mm options such as those from Buffalo Bore and Underwood?

The only 10mm I have currently is a RIA Tac Ultra FS and since I've had it, I've cast, powder coated and loaded several hundred rounds of warm ammunition.
The only hiccups I've encountered were with Underwood 200gr JHP where the slide will lock back prematurely due to the heavier recoil.
A heavier hammer spring and recoil spring was of little help, so I purchased an inexpensive 1911 slide release and removed the tab that engages the slide. The slide will no longer lock back on an empty magazine, but it doesn't lock back during heavy recoil either. The OEM slide stop remains, unmodified, in the case.

Now I'm wanting to purchase another 10mm and give Tanfoglio another chance (I had a bad experience in the early 2000's with their customer service).
However, I have no use for a 10mm that can't handle "Norma loads" without some form of malfunction or spontaneous disassembly.

So, what's the word on the polymer Tanfoglios and hot, properly loaded 10mm loads?
I'm also looking at the Polymer Match Pro. If the consensus warns against the use of such loads from their polymer options, I may look into a steel framed Witness instead... presuming the whole cracked slide issue is behind them.

 

[sparkyv]

The guys over at 10mm-firearms forum like the RIAs, I don't recall comments on Tanfoglios. I've read unfavorable CS comments on both, which may not be an issue with most well-made firearms.

 

[Dibbs]

I'd avoid borrowing trouble, like +, +P, or hot handloads.

 

[CarJunkieLS1]

Glock Model 20 or Model 40 and an aftermarket barrel will take all the hot loads you can throw at it.

 

[5-SHOTS]

I don't know if I would shoot hot 10mm loads or hot 10mm loads with heavier bullets in ANY semiautomatic pistol. I'd probably buy a Ruger revolver to fire that kind of ammunition. However in a semiautomatic pistol, whatever it is, I would definitely replace the recoil spring with a heavier one and the hammer spring as well like you did on your 1911. Certainly this alleviates slide-to-frame battering but stresses more the slide stop when the slide backs forward.

 

[Frankl03]

I have owned several Tanfoglios, all have been great guns. I have not owned a polymer one but I'm sure it would hold up fine. Tanfos come with really good triggers normally. I would not hesitate to buy one.

 

[VinnAY]

Im not sure that I would want to shoot 10mm (over .40SW velocities/power) in a poly framed gun, just a feeling that I have that may not be true or correct. I load hot stuff but it's in a commander sized 1911 with a supported/ramped barrel.

 

[Rule3]

Many polymers are stronger than some of the steel used in guns.
Polymers can take a lot of abuse,

It will vary by who makes it,
What are your plans for the gun?
Why high powered ammo, for hunting?

Lots of 10mm guns out there.

 

[The Glockodile]

Polymers can take a lot of abuse...

I'm not sure what property is used to describe this "resilience."

For instance, the Glock 20 is fully capable of taking the original Norma loads.

1911s, you might have to give the steel and whatnot a little more thought - otherwise you get fractures.

 

[Rule3]

I'm not sure what property is used to describe this "resilience."

For instance, the Glock 20 is fully capable of taking the original Norma loads.

1911s, you might have to give the steel and whatnot a little more thought - otherwise you get fractures.

https://www.nordsonmedical.com/technical/material/Nylon/Dupont Zytel 70G33L Information.pdf

 

[The Glockodile]

Which one is it?

The "Flexural Modulus?"