10mm or 10mm kurz in a short barrel?

[Da/Sa Fan]

OK. So I have decided that I want to up my game a bit for my "easy" EDC. I like my Witness steel in 10 and would like a polymer compact in 10 to replace my SAR B6PC in 9mm. But how much better would 10mm be than 10mm Kurz (40 S&W) in a 3.6 inch barrel? Can I find a factory load in 10mm that would be a definite advantage?

My "sometimes" EDC will eventually be a double stack Republic Forge 10mm in a shoulder rig, but that's a ways away!

[sqlbullet]

10mm from a 3.6" barrel will still exceed 40S&W from a full size (4.5"-5.0") barrel.  Might even beat it from a longslide.

[SavageOne]

I used a Witness Polymer Compact Carry 10mm as an EDC, right up till it broke a front rail guide at the range. I was thinking of getting a Steel Compact Carry, but was able to get a Grand Power P40 10mm and use that now.

[Da/Sa Fan]

10mm from a 3.6" barrel will still exceed 40S&W from a full size (4.5"-5.0") barrel.  Might even beat it from a longslide.

Thanks. I almost exclusively use Underwood ammo. Would i be better off going with a lighter bullet weight to keep the velocity up? Especially thinking about XTPs. I don't know if they would expand well in the short barrel in the 200 grain weight that I shoot in my full size.

[Da/Sa Fan]

I used a Witness Polymer Compact Carry 10mm as an EDC, right up till it broke a front rail guide at the range. I was thinking of getting a Steel Compact Carry, but was able to get a Grand Power P40 10mm and use that now.

Don't know if I could find or afford a Grandpower in 10mm. Were there any mods done to your polymer compact?

[SavageOne]

I used a Witness Polymer Compact Carry 10mm as an EDC, right up till it broke a front rail guide at the range. I was thinking of getting a Steel Compact Carry, but was able to get a Grand Power P40 10mm and use that now.

Don't know if I could find or afford a Grandpower in 10mm. Were there any mods done to your polymer compact?

Henning conical guide rod and heavier recoil spring.

[Da/Sa Fan]

I used a Witness Polymer Compact Carry 10mm as an EDC, right up till it broke a front rail guide at the range. I was thinking of getting a Steel Compact Carry, but was able to get a Grand Power P40 10mm and use that now.

Don't know if I could find or afford a Grandpower in 10mm. Were there any mods done to your polymer compact?

Henning conical guide rod and heavier recoil spring.

Wow. I knew that it could be challenging to make the poly compact run right but I hadn't heard of them breaking. Does anyone know how common a problem it might be?

[SavageOne]

I used a Witness Polymer Compact Carry 10mm as an EDC, right up till it broke a front rail guide at the range. I was thinking of getting a Steel Compact Carry, but was able to get a Grand Power P40 10mm and use that now.

Don't know if I could find or afford a Grandpower in 10mm. Were there any mods done to your polymer compact?

Henning conical guide rod and heavier recoil spring.

Wow. I knew that it could be challenging to make the poly compact run right but I hadn't heard of them breaking. Does anyone know how common a problem it might be?

I think most where only focusing on the recoil spring. I was going to try the heavier recoil spring in conjunction with a heavier magazine spring, but the slide guide broke before I could. I am not saying that my experience is an way typical. Witness' have a great record, but the Polymer Compact Carry has always been a horse of a different color. Like I said, I was still willing to try a Compact Carry, I was just going to use a Steel one. The reason I decided to go to the GP was that it had a CNC insert and I was hoping that it would be stronger. So far it has run great, but had I been unable to get a GP I would have kept working with the Compact Carry or a regular Carry.

[Da/Sa Fan]

Thank you.