[9mm Major Load Data]

BTW, Has anyone tried Hodgdon H110 for 9mm major or is it too slow of a powder?

Thomas

[Overpressure Signs?]

HoMiE

Thank you very much for your information. I feel better knowing I am not the only one getting flatten primers with 9mm major.

[Overpressure Signs?]

I am having presser problems “Flat primer with normal strike” according from the following web page superdude pointed. (Great info!!!)

http://www.38super.net/Pages/Factory2.html

I am just making 9mm with 124gn, Longshot 7.8gn and HS-6 8.0gn mix brass, CCI primer. Gun STI Trubor GM

The other day I called STI and was told to switch out the firing pin to an extended one and hammer spring to a softer one, I really didn’t know why but I guess this is to suppress the primers ignition to slowdown the burn rate of the powder.

Also I was told for 9mm major the slower the powder the easier to make major?

I have been reading information that points to a different opinion and confused.

Any opinions to lower the presser and still make major?

[9mm major loads]

Thank you

All-Gator i will give it a try

Thomas

[9mm major loads]

Thank you HoMiE, so SD and ES is a Accuracy thing I get it now.

I was wondering if by changing to a extended firing pin and the softer hammer spring thing might improve??

BTW, I have to add I am using mix brass and CCI small pistol primers.

Thomas

[9mm major loads]

I am new to reloading and just got a STI Grandmaster and am working on finding a major load.

With Longshot 7.8gn, 124gn 1.180 OAL I was able to 167 PF

And with HS-6 8.0 gn, 124gn 1.180 OAL 165 PF

But whatever I do, I can’t get away from getting flatten Primers and was thinking if there is a way to lower the pressure? I haven’t made any changes to the STI any suggestions?

And also what does “SD” and “ES” stand for?