SR 4756 is a very slow powder for the 9mm case.
It is like using IMR4831 in rifle cases..... scoop and load a bullet.
My heavy duty C9 3.5" pistol will take the 115 and 124gr plated bullets
at a maximum OAL to receive a compressed load of SR4756 powder in
order to get to a standard 9mm load.
You should be able to load up to 5.0grs in the short 1.04" load that works in your pistol.
This is a loading that I use for a medium fast powder with a 125gr bullet
since I never tried SR4756 at this short of OAL.
As a note, the 125gr LRN coated bullet with a OAL of 1.06" took a
maximum load of 6.6grs of HS-6 for 1173fps.
You should have NO pressure problems using SR4756 powder in the 9mm case.
Good loading.
Last edited by Nevada Ed; 12-22-2016 at 05:21 PM.
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