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View Full Version : Lee's 90315 6-cav mold: 358-105-SWC: WHAT A NICE BOOLIT!



evan price
09-05-2011, 05:50 AM
http://www.fmreloading.com/images/358-105-swc.jpg

I picked up my Lee 90315 6-cav mold- 358-105-SWC and wasn't really wanting one; It was in a package deal off of eBay- it came with a partner mold, a discontinued 6-cavity 358-150-SWC that I actually wanted at the time and a set of 6-cav handles. The whole mess was maybe $50 shipped to my door iirc, not an awesome deal but not bad if I do say so myself. The molds needed some TLC and that's what they got. The 105-SWC sat on the top of my safe, unloved, for nearly two years because I already had a TL-356-124-2R for my 9mm's and heck I'd used RNs in 9mm since forever coz' that's what you do, right? I recall thinking, as I cast the 105-SWC mold into purgatory, who the heck would want to shoot that tiny little thing in 38 special? I figured I'd trade it off one day.

Fast forward about two years to last week. I'm in a mood to tinker. I need some more 311-93-1Rs for my 32 Long and I started casting them in my 90308 6-cav. I had lead left in the pot- smelted range scrap, that I know BHNs about 8-10 and hits 12 with water quenching- and figured, what the heck, let's try out that 105-SWC.

After a LONG warmup (Seems to me the small Lee 6-cavs take a lot longer to warm up and start behaving than the big boolits like the TL-429-240-SWC for example) it started tossing out these little 1/2 scale models of the classic H&G #68 200-gr 45 boolit that everyone and their uncle uses in 45 acp. It was a cute little button thing. Purdy, shiny, and oddly tempting. Despite my renewed feelings of "What is this good for?" I went ahead and once she got good and hot next thing I knew I had spat out maybe 300 of them. Measuring them in groups on my digital scale (a postal scale, not a really accurate scale) showed that the bullets were right on for weight, roughly 67 of them was a solid pound which is as close to 105-grains as I can measure with a digital postal scale.

I then got the wild idea to load them in 9mm. They were a bit out of round but generally .358"-.359" and cute little things. I tumble lubed them in ALOX and pushed them through a Lee .357" sizer and gave them another light coat of ALOX. I used mixed range-pickup nickel brass with 4.5 grains of Alliant Promo and Wolf SP primers to an OAL of about 1.10". This left a bit of the upper driving band exposed but not too much.

I loaded up 8 with dead primers and no powder first to function test them in my Sig P6. They cycled just fine despite having been cast just 24 hours before and not fully hard yet. There was a tiny nick on the side of the nose from something. But they fed and cycled by hand just fine. So I went for it.

They functioned and fired just fine, nothing out of the ordinary- until I checked the target- it was full of perfectly round holes grouped in the middle of the target. Wow! With round noses I get ragged sort of cuts in the paper, these SWCs really did leave nice clean holes in the paper. And they shot well, too! I went through that first hundred I had loaded rather quickly, intent on having fun and not really on marksmanship. At 30' or thereabouts as I paced it off in my back yard, I was keeping all of them on a piece of printer paper as long as I provided minimal guidance to the pistol. Impressive! The last 8 I saved and shot onto a 3"x5" purple card from the craft bin. All 8 on the card from 30'.

I have got to say this little boolit made a believer out of me. Nice clean target markings and quite economical to shoot. Going from 124 grains to 105 grains is roughly a 15% savings in lead required!

Going to have to load up some more and try them in some other pistols. This could be my new favorite 9mm mold. And ya know what? I never have yet cast any real number of 150-SWCs, which was the mold I originally wanted to begin with! I have 3000 or so Lyman 358156s and a couple thousand 158-RFs to use up before I need any more.

:cbpour:

Wally
09-05-2011, 08:18 AM
Nice bullet but with mine they cast large---over .361". When you size and lube to .358" the small crimp & grease groove almost vanish. Very accurate in the 9mm, .38 Spl. & the .357 mag. I used the DC mold so much the blocks warped and I had to return it to Lee. One must cast very hot with this mold as it is so small. I had to get a custom Top Punch and Seater screws for it to avoid marring the tip--many use a Lyman 402 with it and its "big brother" 90318 (140 Grain SWC)

jmsj
09-05-2011, 09:24 AM
Evan,
I have really good luck shooting these in my .357's. We use 2.8- 3.0 graains of Bullseye for plinking loads and my wife's CCW practice loads.
Good luck

Sapper771
09-05-2011, 10:37 AM
That little 105gr is a fun and versatile little boolit. I have loaded it in 380, 9mm, and 38 spl. I prefer it in 38spl for low recoil plinking. I havent really figured out the best OAL for it in 380 and 9mm. Keep getting failure to feeds.

skeet1
09-05-2011, 10:48 AM
I also use this bullet in my 9mm Glock 17, I actually crimp in the crimping groove and they function perfectly. I load them with 4.4 gr. of Unique and sized .358 with no leading.

Ken

MtGun44
09-05-2011, 11:37 AM
THis is the first boolit I ever cast, back in '76. Worked perfectly in my Browning HP, then
and now. Basically, a mini-H&G 68 for .35 cal guns. Accurate, feeds perfectly in everything
I ever tried it in. Works well in .38 Spl, too.

Bill

evan price
12-08-2011, 06:25 PM
Today, sat down and cast a thousand more of the little 105-SWC boolit. Once I get that 6-cavity mold going it just chugs them out.
Lead was Range scrap approx. BHN 12.
Tumble-lubed in 50-50 ALOX & mineral spirits before and after sizing.
Sized with Lee push-through sizer .357, which leaves them .356" and just right.
Loaded over 4.8 grains of PROMO powder in nickel range brass and Wolf SP primers.
Nice shooting load, accurate, clean burning, no leading to see, ejected brass looked almost unfired.

Shot a couple dozen in the backyard from my Springfield XD9.

The left-over Halloween pumpkins didn't stand a chance.

Boolseye
12-08-2011, 06:52 PM
Alright, you've convinced me. I need this mold.

Ausglock
12-08-2011, 08:46 PM
Great Boolit out of the Glock 34.
I use it sized to .357 over 4.0gr WST in 9mm.
This is my favourite load for Steel Challenge.
Super accurate and Easy to track from target to target. minimal recoil and the empties fall at your right foot in a nice little pile.

Doble Troble
12-09-2011, 12:13 AM
I shoot these out of a 9 mm 1911 in our USPSA matches - 5.3 gr of Unique just makes minor. I load them to the crimp with top band out of the case. Size to 357 and BAC lube. I use a flat top punch. The crisp holes are COOL! For some reason these bullets tend to rip the back of cardboard targets. I can tell which shots were mine by looking at the the back. Not all mine 9s feed this one, but its my favorite in those that do!

evan price
12-09-2011, 10:43 AM
Using 1.025" OAL now. A bit shorter, and I'm not getting a nick in the edge of the cone anymore. I think it was hitting the feed ramp. I tried loading them unsized and I had a few that would not go into battery and jammed. So, back to sizing them with the 357 Lee push-through sizer.
No leading with thinned ALOX before and after sizing. According to Alliant this is a 1200 fps load. My brass was dropping just off my right shoulder and was clean enough that I might not have needed to tumble them again. My gun looked unfired. This is a CLEAN load.

timkelley
12-09-2011, 12:40 PM
It's a great boolit. I got it in a two cavity not knowing if it would feed in my guns (what a stupid question!) wish I had it in a six.

Jal5
12-09-2011, 07:56 PM
So far I have only tried it in 38 spl. looks like I will have to experiment more with the little guy!

paul edward
12-09-2011, 08:38 PM
I have been using the 358-140-SWC, a longer version of this boolit in 38 Special.

The nose punch for the Lyman 356402 works well.

Have been debating 358-105-SWC or 356-102-1R for 380. This one is starting to look like a good solution.

evan price
12-10-2011, 09:38 PM
I just today loaded the 105-SWC in 380- 2.7 grains of PROMO and OAL of .940" in range brass, sized .356" and crimped to .377" and what a nice shooter it turned out to be! Bersa 380 ate it up. I have not yet tried it in 38 spl, but I also have the 150-SWC version to try there.

sisiphunter
12-10-2011, 10:16 PM
I have this in a 2 cav. Works great in the 38 for lite plinkers and shot great groups in my radom 9mm but i do get failure to feed often. Going to have to fiddle with the oal i guess...great boolit

evan price
12-19-2011, 04:14 AM
http://i200.photobucket.com/albums/aa285/ragabash01/img1323898242014.jpg
The one in front (nickel) is a 380 auto, the yellow brass one is a 9mm Luger. Nice little rounds!