Heavy, subsonic 9mm loads

[bhn22]

358156 works in 9mm if you leave the gascheck off. I size mine to .358, and they kindo of match up with Hornadys 147 JHP in profile if you squint a little bit. I use 3 gr of Bullseye for a plinker load.

[Gremlin460]

OK, 3 different powders suggested, thanks for that. My main issue is our pistol range is semi-indoors, so smoke is definitely a disadvantage when shooting NRA matches against the clock.
That is why I was suggested to try PP as it is one of the lesser smokers for pistol, is this incorrect?

[Artful]

wax/grease lubes will smoke more than PP or dry lubes - check out the lube section for powder coating/paint lubes.

[9.3X62AL]

4.1 gr of 231/HP38 is my go to load for IDPA/IPSC using 125 gr boolits. Very accurate in all my 9MM guns.

Take Care

Bob

Interesting--my factory load duplicator for the 147 grain 9mm sub-sonic JHPs was also 4.1 grains of WW-231.

[subsonic]

I'm going to be trying the Lee 158RF in a 9mm soon... wanted to push this back to the front page.

[Bohica793]

I just poured 100 147 grain FP from my new RCBS 9mm-147-556 mold. Dropped at .358-359 and 154-155 grains using WW+2% tin. I will be working up loads with Bullseye and 231 this weekend.

[subsonic]

My results are here in a new thread:

http://castboolits.gunloads.com/show...d-a-suppressor

[bcp477]

Interesting. Until recently, I loaded 158 grain (cast) for my 9mms. I gave them up because of too many problems with case bulging....and subsequent chambering issues. Using a Lee FCD to "de-bulge" the loaded cases (I tried this too) only swaged the boolit bases down to a dimension smaller than 0.356". So, I got gas-cutting around the bases....and leading as a result. The 9mm case is tapered on the outside....and it also is tapered on the inside - so you end up with a tapered boolit (once the bulge in the case is ironed out). This doesn't bode well. I never could overcome the problems.

One thing, though. I was using boolits designed for 38 Spl. - which, I think, have a much longer bearing portion than most 9mm designs. That may well have been the problem.

Correct me if I am wrong, but don't most 147 grain 9mm boolit designs have a long, tapered nose section (longer than lighter 9mm pills), but smaller in diameter than the bearing portion of the boolit ? If so, that is the secret to heavy boolits in the 9mm - keep the bearing portion of the boolit short enough that case bulge is not a problem, but the long nose allows for the extra weight. If my thinking is correct on this (I've never loaded dedicated 9mm designs heavier than 125 gr.)....then the boolits the OP will be trying had better be designed for the 9mm.

Right ? Or am I missing something ?

[Bohica793]

Attachment 83416

Judge for yourself. The round on the right is the RCBS 9mm-147 cast in COWW + 2% tin. The round on the left is an old Modern Bond 358-755 155 grain SWC.

I loaded two batches of the 147 grain: one with Bullseye and the other with W231. The chrono results are below.


9MM RCBS 147gr FP
Powder: Alliant Bullseye
Primer: Winchester Small Pistol


Grains COL High Low AVG SDev ES
2.8 1.058 837.5 781.0 813.3 19.0 56.5
3.0 1.058 938.7 855.7 900.0 28.6 83.0
3.2 1.058 944.0 907.7 927.2 14.5 36.3
3.4 1.058 991.8 942.3 965.0 19.3 49.5


9MM RCBS 147gr FP
Powder: Winchester 231
Primer: Winchester Small Pistol


Grains COL High Low AVG SDev ES
3.2 1.058 872.0 793.0 833.7 30.7 79.0
3.4 1.058 929.0 848.0 891.3 24.2 81.0
3.6 1.058 967.0 914.0 937.0 18.1 53.0
3.8 1.058 993.0 925.0 965.3 18.7 68.0

[pakmc]

I forget the powder load but I"m shooting a lee 158 SWC (which weights about 160 gr.s) in my CZ 75D 9mm, I've never had a problem with them working(and I didn't size them down to 352 or so) yes, subsonic, but what a self defence load.

[Valerko]

http://www.midwayusa.com/product/784...1-ogive-radius

Those 150 g round nose don't work at all in my Cz 75. First they wouldn't go into battery , after shortening OAL it wouldn't feed properly. Any other mold that would work ?