I just got the #91255 LE 50 Round box for $35.94.
I decided to go that route for my G29 for SD. They average 1083 out of a G29, while the CD averaged 977 from a G23. So it's not full power 10mm, but it is still 100 fps faster than the .40 in comparable barrels (3.78" vs 4.05").
This is my first 10mm, so I'm starting in the lower end of the spectrum to make sure my follow up shots stay acceptable. I will work my way up to the Underwood stuff.
I decided to go that route for my G29 for SD. They average 1083 out of a G29, while the CD averaged 977 from a G23. So it's not full power 10mm, but it is still 100 fps faster than the .40 in comparable barrels (3.78" vs 4.05").
This is my first 10mm, so I'm starting in the lower end of the spectrum to make sure my follow up shots stay acceptable. I will work my way up to the Underwood stuff.