Here's a summary of my testing with 147 gr rounds:anyone have luck with 147 gr ammo in thier pf9? Is it hard on the gun like plus p?
The only change I know of is actually the feed ramp, not the chamber. They changed the ramp to help it feed the 147s better. There should be some pictures around somewhere.My understanding is that older PF-9s wouldn't chamber 147s reliably because of a short chamber, but the barrels on newer ones are machined with a chamber that will accept the longer bullets. I don't know, however, exactly when the change took place.