9 mm Largo

[tbryan]

Anyone here load cast boolits for their 9mm Largo ? I have a Star and two Astra 400's. I would like to hear of any good medium loads with a 125 grain cast round nose. I have a Saeco mold for that size and a .355 sizer die. Any suggestions would be welcome. Thanks, Tom

[gwpercle]

The only data I have in 9mm Largo is for .355 125gr. FMJ....no cast boolit data.
I got it from www.9mmlargo.com/cartridge/loads.htm (http://www.9mmlargo.com/cartridge/loads.htm)
It has loads listed for 9 different powders....it might be a place to start.
The starting FMJ loads , used with cast boolits , should be a place to start. You could drop down 1.0 grain, load a few and see how they function. Data on this one is slim and none !
Gary

[Der Gebirgsjager]

It's been my experience that any standard velocity cast load for 9x19mm (Luger, Parabellum) published in the loading manuals will work well for 9mm Largo.

[bob208]

use .38acp loads. or starting loads for the .38super. but don't use hot .38super loads.

[Drm50]

I had a Largo carbine that I loaded with 130gr RN cast, a 38special bullet, sized to .356". Shot
pretty good out to 50yds. I went by 38acp data. Killed a lot of barn pigeons with it.

[tbryan]

Thanks for the info. Right about loading info being scarce. I have been using 9mm luger data so far. The Star is a pretty strong pistol from what I have gathered. The Astras are older and weaker. Fun to shoot once you get by the trigger pull. I might push the Star a little bit more.
I will try the loads you all suggested. Thanks. Tom

[bob208]

the astra is a blow back. the star a locked breach.

[bruce drake]

Sierra will send you a pdf with several pages of 9mm Largo reloads if you call or email them.
SIERRA BULLETS

1400 West Henry Street
Sedalia, MO 65301
(660) 827-6300
sierra@sierrabullets.com

Also enjoy the linked article. https://www.loaddata.com/articles/PDF/LD-34%20Campbell%20LR.pdf

[Harry O]

I use the same bullet, the same powder, and the same amount of powder in the 9mm Largo as I do in the 9mm Luger. I have never had a problem with doing that. I have two Stars (original and Super) and an Astra 400. Early on, I used .38ACP and .38 Super brass loaded with .38ACP loading dies. Since Starline started offering 9mm Largo brass, I have retired the .38 brass. I also have correct loading dies now.

[tbryan]

Thanks Bruce. Didn't know that. I will call them Monday. I also started off with 9 mm luger data. Just looking for favorite loads. Thanks

[rintinglen]

When I first got my Star Modelo Super 9mm Largo back in the 90's, there was no data and I .was compelled to seek my own path. What I found was that High end 9mm Luger loads made excellent Largo Loads. My standard load became a Lee 120 tc over 5.0 grains of ww-231 but more recently I switched to Power Pistol and 6 grains under the same boolit. A .357 boolit works well, but in mine a .358 gave occasional problems if the gun was not spotlessly cleaned.
I haven't shot mine much in the last few years, due to the cost and availability of brass. I could kick myself for not buying a 9 mm Luger barrel for mine when Federal Ordnance had them on sale back around the Mid-nineties.