9mm with W231 OAL question

[Woodythedog]

Hi . Just loaded up a batch on my new Lee pro 6 Pack. 9MM with 4.6 grains of W231 behind 115 gn jacketed bullet. Somehow a few of them ended up between 1.136 and 1.140 ....I was loading for 1.145 OAL. Are the shorter ones safe to send. Thanks

[Strafer]

I'm loading xtreme 115gr FMJRN w 4.9gr of W231 and a COAL of 1.114. Never had any issues out of my CZs (Rami, p01, sp01). ~1100fps

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[Woodythedog]

CZ is what I shoot also. Thanks for the reply.

[Strafer]

Yw. I'm loading for the shortest COAL amongst the three pistols as determined by "plunk testing" each barrel w that specific projectile. That way, I only have one COAL to load to.
Happy reloading!

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[sigstroker]

I just make it the same length as a factory 115 gr fmj.

[AlexKintner]

Hornady manual shows COL of 1.100 with a max of 4.7 gr. Should be GTG.

BTW- when I was first starting out my 92fs had issues cycling with a similar load and a larger COL. search seared them to 1.100 and ran like a champ.

Enjoy.

[Che762x39]

Hi . Just loaded up a batch on my new Lee pro 6 Pack. 9MM with 4.6 grains of W231 behind 115 gn jacketed bullet. Somehow a few of them ended up between 1.136 and 1.140 ....I was loading for 1.145 OAL. Are the shorter ones safe to send. Thanks

I think you will be okay because 4.6 of W231 is not a Maximum Charge and bullet setback happens.

[bhilliker@comcast.net]

run the same charge at 1.115 send them!!

[Tripplet918]

I think you will be okay because 4.6 of W231 is not a Maximum Charge and bullet setback happens.

Yep. Im at 4.8 gr, same bullet at 1.10?

You?ll be fine

[ar15barrels]

Hi . Just loaded up a batch on my new Lee pro 6 Pack. 9MM with 4.6 grains of W231 behind 115 gn jacketed bullet. Somehow a few of them ended up between 1.136 and 1.140 ....I was loading for 1.145 OAL. Are the shorter ones safe to send. Thanks

Here are 2 quickload simulations with the only difference being the OAL.

Cartridge          : 9 mm Luger (SAAMI)
Bullet             : .355, 115, Hornady FMJ/RN ENC 35557
Useable Case Capaci: 10.079 grain H2O = 0.654 cm?
Cartridge O.A.L. L6: 1.145 inch = 29.08 mm
Barrel Length      : 4.0 inch = 101.6 mm
Powder             : Winchester 231

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

+00.0   65     4.60   1059     286   23562   4315     99.9    0.485

Cartridge          : 9 mm Luger (SAAMI)
Bullet             : .355, 115, Hornady FMJ/RN ENC 35557
Useable Case Capaci: 9.829 grain H2O = 0.638 cm?
Cartridge O.A.L. L6: 1.135 inch = 28.83 mm
Barrel Length      : 4.0 inch = 101.6 mm
Powder             : Winchester 231

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

+00.0   67     4.60   1067     291   24346   4285     99.9    0.479