Not in a ported barrel??

[Beentown]

Picked up some Federal range fodder in .40 the other day and noticed something strange. The box had a warning on it not to shoot in a firearm with a ported barrel or ported comp...

I have a comp/barrel coming in for my XDM and would probably be putting some of this through it.

Anyone know why they say not to do it?

 

[Jackalope]

Prolly a soft jacket or something they don't want cheese grating on the ports. I don't know

 

[Archertl]

Prolly a soft jacket or something they don't want cheese grating on the ports. I don't know

That would be the only thing i can think of

 

[Beentown]

They are standard FMJ Federal Maroon box??? I have had a problem with lead build up from reloads but never anything with copper coming off other than a bit of copper fouling in the barrels. Hmm...

 

[Bowhunter57]

Beentown,
I'd send Federal and SA an e-mail, asking them why and/or what's the reasoning. Then let us know what they have to say. :smiley_bril:

Bowhunter57

 

[Ohiosam]

I wonder if they've had trouble with jacket separation with some kind of porting? leaving a jacket in muzzle making the next round a kaboom.