40S&W load using Unique. [Archive] - Glock Talk

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TN.Frank
11-09-2011, 08:23
Need to double check a load that I'm going to put together for my PX4 Storm. It's 40cal, I'm using a home cast bullet that'll be 183grs(Just call it 180grs that'll be close enough.) and Win. Sm. Pistol primers. I'm thinking either 5.0gr or 5.2grs of Unique for this bullet. From what I've seen on the interweb I can go anywhere from 4.5grs to 5.5grs and be ok. I'm looking for around 950fps, not trying to burn down any barns just want a good solid load.
So what do ya'll think, 5.0grs or 5.2grs. Also, what are some of your pet loads in 40cal using Unique. Thanks.

Murphy's Law
11-09-2011, 13:54
I've never chron'd my rounds but I use 180gr fmj on my G23C (40cal) with 5.5gr of Unique. I also use Unique for my 45cal Colts (3" & 5") with 230gr fmj bullet and 6.0gr of Unique. Both seems run my pistols just fine.

fredj338
11-09-2011, 14:18
That should be close @ 5.2gr. I run a 175grLRNFP o/ 5.8gr for a max load, just over 1000fps in my 4006/USP.

rpgman
11-09-2011, 14:20
never did a 180gr, but my 165gr is 5.8gr of Unique at 1.120 OAL
I know that doesn't help much, but it's the only .40 load I've done so far.

Steve Koski
11-09-2011, 14:47
TN,

That load will work fine. You may want to amp them up for a rifle/carbine. 6.0 grains of Unique under a 180 lead bullet at 1.135" has some thump to it, but is still within the load book data.

Koski

Steve Koski
11-09-2011, 14:50
One of my pet loads is 5.9 gr Unique under a 155 LRN at 1.135" Feels a hair lighter than factory ammo.

TN.Frank
11-09-2011, 15:25
Thanks guys. I may load up 25 or so with 5.0grs just to see how it'll shoot then give the 5.2gr load a try as well. Kind of looking for a "light" load that's not too wimppy, LOL. Still want a little umph without getting into leading problems.
Think I may also try and get a Lyman or RCBS mold since the Lee isn't working as good as ones I've had in the past. Seems like their quality control is slipping a bit.
I cast around 80 bullets today and culled out about half of em' from the get go then on my second, closer look I culled out more and ended up with 28 workable bullets.
I know I'm unemployed and have nothing but time on my hands but dang, I'd like to at least be able to shoot most of what I cast.LOL.

fredj338
11-09-2011, 19:09
Leading isn't going to be a vel issue, but alloy/bullet fit/lube & powder issue. Get it right, leading isn't an issue. The 9mm & 40 offer a bit more challenge than say 45acp, but size em right, runnign 1000fps isn't an issue.

WiskyT
11-10-2011, 19:08
If you want a light load, try 3.5 Bullseye or similar powder. It's well below a starting load, but it runs great with a lead 180. I tried a little lower, and it shot great in my Glocks, but with my Beretta 96 it failed to obturate and I would get power coming back at me. 3.5 solved the problem and is still a soft shooter.

Chaecking my notes, 5.4 Unique averaged 936 in a Glock 27 with a cast 180. This should duplicate 180 factory loads. 6.0 Unique averaged 971 out of the same gun with a cast 180. I don't think it is worth it to use the 10% higher charge to get another 35 fps.

WiskyT
11-10-2011, 19:09
Leading isn't going to be a vel issue, but alloy/bullet fit/lube & powder issue. Get it right, leading isn't an issue. The 9mm & 40 offer a bit more challenge than say 45acp, but size em right, runnign 1000fps isn't an issue.

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