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Old July 10, 2000, 07:21 PM   #1
jtduncan
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Join Date: December 5, 1999
Location: Seattle, Washington, USA
Posts: 1,681
I'm going to reload for my HK P7 and my Kel Tec Sub-9 carbine and have been told numerous times that they like hotter loads.

Hodgdon's lists 5.0 grains of Universal moving at 1149 fps.

I'm currently at 4.9 grains with great accuracy but was wondering what your results were at 5.0 or even 5.1?

Any tips or feedback?

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Old July 11, 2000, 11:23 PM   #2
Rocky Road
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Join Date: November 17, 2000
Posts: 167
jt--
You don't say what bullet you're loading with his powder charge.

Speer Manual #12 shows up to 5.3 Universal with 115 jacketed bullets, for 1172 fps. And 5.0 as max with 124 gr. jacketed, for 1089 fps.

If you're loading either weight, you're fine going to 5.0. If you're loading 147 gr projectiles, you're already a bit warm.

Wait a sec! I just found my Hodgdon Basic Reloaders Manual 2000 and it shows the 5.0 gr Universal for 1149 data for the 115 gr. Speer Gold Dot HP.

They show this as maximum, and that it develops 31,200 C.U.P., the highest of any 9 mm load they list, with any weight bullet. My Speer manual shows 35,000 as industry max pressure. I have no means of measuring pressure, and even if I did, probably wouldn't publish it here.

jt--I strongly suggest you stick with published data. Remember--when you get up to the upper levels, you get only very small gains for MUCH higher pressure. Yeah, I've heard there's a certain "fudge factor" in most or all of the manuals. Trouble is, I don't know which ones, or how large is the factor.

Not to mention, when you up the pressures of autopistol loads, you may well get outside the "timing" and lock/unlock cycle and do substantial damage to your pistol.

And--Are you really going to have THAT much more fun, getting possibly another 30 to 60 fps by going above spec?

Man, I hate to sound like an old fogey, a wet blanket, etc., but I feel better for passing along these little cautions.

Best regards,
RR

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Old July 12, 2000, 12:57 PM   #3
jtduncan
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Join Date: December 5, 1999
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Posts: 1,681
Thanks for the wise advice. i called Larry at tech support at Hodgdon and talked to him extensively about at.

I am using 115 grain FMJ and HPs and I'm getting great accuracy and results at 4.9 so I'll stick there. Those CUP numbers are averages BTW.

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