Hornady Critical Duty 9mm 135 gr SLOW

[Pappabear]

Makes sense then, because the 135+P writes 1,110fps "On box".
50 yards 1038 fps
100 yards 983

PB

[Ron3]

Still learning.

I've learned that Beretta's typically have generous bore diameters. The purpose is often guessed that it's to reduce pressures for longevity and increase reliability with low-quality ammo.

I found lots of guys using cast .358 dia. bullets. So, get the right shaped bullet and fire it from your .38's, .357's, and some 9x19's.

And yes, I found other chronograph tests reporting sluggish velocities compared to other standard-design bores of similar length.

I measured the groove dia of my pistol and found it was .365.
I pulled and measured a Critical Duty bullet and as expected got .355.

Interesting.

[Ron3]

This ammo averaged just under 1100 fps from my AP5P.

My Beretta had an oversized bore (grooves) apparently. It shoots everything slower than comparable-length barrels. This one more than others.

However, it shoots accurately from both guns. 4-inch 5-shot groups free-hand at 25 yds with irons from the Beretta Centurion 4.25 in. I didn't measure groups from the RDS-equipped AP5P but they were considerably tighter.