A note on the 10mm 180 gr load.

I watched a Gel test with the hotter Underwood 180 JHP Gold Dot
shot out of the Glock 20 with a 4.6" barrel.
The box had 1300fps as a fps and the G20 produced 1328fps.

The bullet penetrated almost 18" and was just plain UGLY.
It looked like a train wreck and even had some Separation !!

The tester did a second test with just water jugs, so to test just the fps.
This test showed maximum jacket fold back and also bullet separation starting.
30% of the bullet was lost, due to fragmentation, going through three jugs!!

It will do the job but the tester has NEVER seen the Gold Dot ever separate in any of his other bullet test.
A first.
Maybe 1300fps is just a little to HOT for the Gold Dot design at this short distance.
The good news is that this load comes at 1250fps or slower by many companies.

Just a heads up.