10mm reloads

[BoatBuilder]

Last night I loaded some new rounds for my G20.
I used 15.7gr of AA#9 in Starline brass, WPP, with 155gr Gold dots, COAL of 1.26
Pretty stout load. Primer was flat, but case expansion was .425 all the way around, no bulges. I use an aftermarket barrel, but there is always room for some bulge in the 6 oclock position.
Recovered gold dot expanded to .72 and flattened to .33 from .53 before fired length. Recovered weight was 151gr.
I obviously need a chrono. Book puts velocity at around 1400fps.
Anyone else reload for 10mm?

 

[Bigum1969]

I've also got a Glock 20 but haven't learned how to reload. I've only got a few hundred rounds through it. Mostly reloads from a friend and some Doubletap Ammo.

 

[BoatBuilder]

I would be glad to show you sometime.

 

[glocktoys]

my g20 eats all kinds of reloads and the factory barrel. i have about 1k of 10mm and another 1k of brass to reload. i did get a .40 s&w barrel for it and going to get a .357 sig barrel later and plan to get a threaded barrel for a can later this summer (have a pile of winchester 180gr sub sonic 10mm ammo). besides the 10mm and the .45 i plan to reload 9mm soon and going to be doing rifle later. get a chrono, it will help quite a bit. i need a dillon 550 but that is another projec for the fall. i have sold at least 4 glock 20's after people shot mine and loved it. keep the 10mm alive........

 

[Bigum1969]

I agree glocktoys with keeping the 10mm alive. It is a great, versatile round and the G20 is a great firearm.

 

[obijohn]

I obviously need a chrono.

yes, i think you do. essential for load development. i haven't loaded any 10mm for awhile, but that sounds like a safe load. any primer or brass extrusion? expansion isn't a reliable indicator as the brass will expand no further than the id of the chamber.

 

[BoatBuilder]

Primers looked fine. No extrusion.