Lee 401-175-TC ; 10mm Glock 20

[Cast10]

Been working hard to learn alloys, smelting, casting, and powder coating. Had great success with my 10mm carbine but just now got to try my loads in the G20.

Got to shoot the Glock 20 this weekend and all went well. NO LEADING at all. One pull through the stock Glock barrel with a bore snake yielded, literally, a mirror shine! No signs of pressure and loads were under SAAMI max per Accurate load data.

My main concern was the function, leading, pressures on the pistol. Not shooting for accuracy, but did manage a few 1.5 - 2 inch groups at 15 yds.

Bonus - Even got expansion with the bullets!

Primers - WLP
Powder - AA #9
Charge - 13.0, 13.3, 13.6
Bullet - Lee 401-175-TC Powder Coated w/ Smokes powder/methods
Alloy - 7lbs SOWW, 5.25lbs Hardball, Approx 11.3 BHN

Again, a HUGE THANKS to all you guys for your help/experience, especially Spuds!

EDIT TO : Add photos;

After firing 25 rounds
https://i.imgur.com/GCHLe43.jpg
https://i.imgur.com/MI4Oe1Y.jpg

After One run with bore snake
https://i.imgur.com/OpXJCFU.jpg
https://i.imgur.com/BYvckG6.jpg

[Taterhead]

Congrats on the great results! Looks like you're dialed in. Coated cast, No. 9 and a Glock 20 -- makes for a happy day at the range!

[Cast10]

Congrats on the great results! Looks like you're dialed in. Coated cast, No. 9 and a Glock 20 -- makes for a happy day at the range!

THANK YOU SIR!
It’s been very enjoyable, all along the way!