Anyone else loading for M&P 9mm?

[BBQJOE]

My current mold is the 356-124 2R.
I have tried dbl lube with LLA, also with 45-45-10.
I still get leading about halfway down the barrel. Some of it looks a little chunky, some of it is streaks.
Leading appears a little less with the 45 lube.

I don't have any lead to slug with at the moment, so I'm wondering if anyone here is loading for this same gun, and what bullet is working.
I've been shooting these over 4.2 Unique.
BHN11-14
There also doesn't seem to be a whole lot of choices in the 9mm bullets.

[rsrocket1]

I don't have any lead to slug with at the moment, so I'm wondering if anyone here is loading for this same gun, and what bullet is working.


You don't have a store that sells fishing sinkers?
Walmart sells them. If you don't have any store that sells fishing sinkers, you win. You really are in the middle of nowhere +5.

Happily shooting 45/45/10 lubed 356-120-TC's in an M&P40 with the factory 9mm barrel (slugged at 0.3545").

[BBQJOE]

You don't have a store that sells fishing sinkers?
Walmart sells them. If you don't have any store that sells fishing sinkers, you win. You really are in the middle of nowhere +5.

Happily shooting 45/45/10 lubed 356-120-TC's in an M&P40 with the factory 9mm barrel (slugged at 0.3545").
Walmart is a 100 mi round trip. I'd just as soon shoot myself.
It sure seems that 356 should be fine, but the more I read here, the more I learn, the less unsure of things I become.

[thehouseproduct]

IIRC, my M&P9 slugged just over 0.356". I size to 0.358" and use a Lee 358-124-RNFP. I also used a couple thousand Lee 356-120-TC. Both have worked great with no leading I've ever noticed. Alloy is 50/50 pure lead/clip on wheel weights and water dropped.

[rsrocket1]

OK I get it, you are lucky enough to be that far from a Walmart. I'm surrounded by them and on a recent trip to El Paso and Wichita, I was also knee deep in 'em.

You know that you can slug your barrel with the same lead you cast with right?
Yes it's a little harder than dead soft lead, but people drive out stuck bullets all the time without damaging the barrel. Just be sure to lube the bullet completely and use something like a brass rod to slug the barrel.

My M&P9 barrel was 0.3545 on the grooves and 0.350 on the lands. The tricky part was that the chamber would not allow a cartridge wider than 0.380". That means the bullets could not be oversized without getting hung up in the chamber. 0.356" bullets worked fine, but does not allow for fatter bullets. I might be able to use bullets dropped straight out of the mold if I had a taper crimp die, but the Lee 3 die set that I bought does not have a separate taper crimp die (not the FCD) and at the present moment, you can't get one. Using the crimper with the seating die only results in shaved and smeared lead on the case walls when trying to seat/crimp in one stage. What I have works anyway so it's not high on my priority list.

[338RemUltraMag]

I run mine at .357 out of my 9mm pro, same boolit but I use carnauba red. I have never had luck with LLA.

[wcp4570]

I don't own one but do load for 5 different M&P Pro's. we have gone thru 2 buckets of wheel weight in the Lee 120tc sized at .356 and no complaints from leading.

wcp

[292]

I have a M&P 9 Shield. I use Lee 358-125-Rf sized with a .356 Lee push through sizer and lubed with LLA. Boolits cast from water dropped wheel weights. Gun would not chamber a boolit sized .357. I use 3.5gr Unique. Not sure of the OAL. No leading at all.