Interesting.

QuoteFederal has made it easier than ever to honor your birthright to bear arms with a new Train + Protect load in 10mm Auto. The full-power offering features a VHP bullet to deliver both precise, practical performance at the range, and instant, reliable expansion on impact.

Test Gun: Ruger LCP
Barrel length: 2.75 inches.
Ammunition: Underwood .380 ACP 90gr +P XTP (Item 141)
Test media: 10% Vyse Ballistics Gel.
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 1036fps
BB Calibration two shots: 4 and 3.75 inches.

https://general-cartridge.com/2022/11/05/underwood-380-acp-90gr-p-xtp-in-vyes-ballistics-gel/

They are going for about $100 or so now on gunbroker.

Are you wet tumbling your brass?

Never mine, that price is my birthday price. The normal price is still $65.99.

Big $20 price drop on these at Midway. $44.92 down from $65.99.

https://www.midwayusa.com/product/1023351060?pid=787498

Looks like they are having another sale.

Test Gun: Glock 20
Barrel length:  4.9 inches.
Ammunition: Winchester 10mm 175gr Silvertip JHP (W10MMST)
Test media: 10% Vyse Ballistics Gel
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 1160fps
BB Calibration: inches. 4 inches

https://general-cartridge.com/2022/04/12/winchester-10mm-175gr-silvertip-in-vyse-ballistics-gel

Test Gun: Sig P320, P365
Barrel length: 3.9, 3 inches.
Ammunition: Winchester USA Ready Defense Ammunition 9mm Luger +P 124 Grain Hex-Vent Jacketed Hollow Point (RED9HP)
Test media: 10% Vyse Ballistics Gel
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 1201, 1139 fps
BB Calibration: 3.25 inches.

https://general-cartridge.com/2022/03/29/winchester-9mm-124gr-p-hex-vent-in-vyse-ballistic-gel/

Interesting.

I stopped by a Sportsman's yesterday and saw pretty much the same thing. No powder or primers. Very little ammo or other components. But rows and rows of AR mags, I could not believe the amount of "high cap" mags on the shelves.

Either the Underwood 220gr or 200gr will be more than enough for your needs. Buy some of both and see what works best for you.

Now that I think about it, you may have issues with the 220gr in the Glock's not stabilizing. Just try some or the 200gr and see. Assuming you can find it in stock. 

Test Gun: Glock 20
Barrel length: 4.6 inches.
Ammunition: Cutting Edge 10MM 190gr PD solids.
Test media: 10% Clear Ballistics Gel.
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 1089fps.

https://general-cartridge.com/2021/10/02/cutting-edge-10mm-190gr-pd-solid-in-clear-ballistics-gel/

Test Gun: Ruger LCP
Barrel length: 2.75 inches.
Ammunition: Remington .380 ACP 102gr Golden Saber
Test media: 10% Vyse Ballistics Gel.
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 821fps
BB Calibration: 3.75 inches.

https://general-cartridge.com/2020/10/27/remington-380-acp-102gr-golden-saber-in-vyes-ballistics-gel/

Test Gun: Glock 20.
Barrel length: 4.6 Inches.
Ammunition: Federal 10mm 200gr HST.
Test media: 10% Vyse Ballistics Gel.
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 1078fps
BB Calibration: 3.75inches

https://general-cartridge.com/2020/08/11/federal-10mm-200gr-hst-in-vyse-ballistics-gel/