Need help with Sierra 9mm 125GR JHP (8125) TiteGroup

[volks_r_us]

Well I loaded 20 rounds fired 2 and unloaded 18...
Bullet is Sierra Sports master 9mm .355 125GR JHP (8125)
My recipe from lyman was 4.0gr of titegroup with a O.A.L of 1.075.
The loads were to hot for me. Primer looked like hell and didn't feel safe to me.
I also cross check with Hodgdon data

125 GR. SIE FMJ

Hodgdon

Titegroup

.355"

1.090"

4.1

1069

27,300 CUP

4.4

1136

30,600 CUP

Not the same bullet and O.A.L but still I felt my load was safe. No Kaboom but I didn't like the brass and how deep the bullet sits

What I am thinking is that this Particular bullet, cause of it's shape, sits deeper in case than average making higher pressure.
Anybody as the Original Sierra book with loading data for this bullet. Must be loaded with titegroup because it's the only powder have for now.

Thanks for your time guys.

 

[dinsdale]

O.A.L looks really short.
Shortest I've loaded 9mm was 1.085 and that was required by my CZ75b and the bullet I was using.
Work up loads from light to recommended rather than start at recommended.
Especially when length is so short.

 

[volks_r_us]

Thanks for the reminder you are right.
That's part of the reason why I wanted to find the spec from a sierra manual. To give me something else to compare with, since it is a longer bullet