2400 in 38 Super? Anyone Use It Successfully?

steve todd
[subject]
Monday, August 01, 2022, 05:26 (10 days ago)

I’m about out of Accurate #9, and haven’t located any “in stock”. I’m trying to use cast 140grain and Acme 150 grain SWC coated bullets.
Have had some success with Lil Gun powder, but it is really compressed above 11 grains.
I’m hoping someone has used 2400 because it looks like the correct burn rate for the 140 grain bullets and i have some of it.
Since the 38 Super is powerful enough for all American game, this may be my new elk hunting rig. 378GNR might be better for elk, but this would be lighter and more economical (we are in a recession you know).

With less capacity than a .38 Special

WB
[subject]
Monday, August 01, 2022, 06:25 (10 days ago) @ steve todd

I'd figure AA#7 or Long Shot would be THE .38 Super powder, period. Maybe even Unique or something faster like that.

I'll try to find it for you as I liked the article

WB
[subject]
Monday, August 01, 2022, 06:53 (10 days ago) @ WB

Lots of good loading info and the early fame of Bar-Sto barrels. I think it was Bob Milek in a 1980 annual magazine "Magnum Handguns". The creased cover still bearing my sweat stained little finger marks from when I bought it, at my first full time job at a grocery store. I've never loaded for the Super but It's now basically now a bigger 9mm. Does 9X21 or Super Comp brass run through common .38 Supers designed for the semi-rimmed?

I've always argued that originally it was a .357" bore gun, not a .355" as it IS of late. Why would Americans in the 1930's go to a foreign 9mm bore barrel when they were well entrenched in the Apple Pie .38 and .357 tubed wheelguns. I seriously doubt they conjured up some European 9mm tubes for the new Colt's. Even when I was a kid in the 1970's the ONLY domestic 9mm's around were the S&W 39/59 and some rare Colt Series 70's. I still lament missing a satin nickel Commander 9mm in around 1978. I could not materialize the $365, no matter what I tried to trade. That was N-frame and Colt Python territory anyway. Of late (mid-1970's) I do not doubt at all that the .38 Super was "morphed" silently into a .355" from basic necessity with availability of projectiles and common barrel material. From long ago many complained of the accuracy of their .38 Supers. Mostly it was attributed to headspace off the teeny semi-rim rather than the case mouth as the .45 ACP. I always wondered if it was more from shooting undersize .355 9mm slugs rather than .357 bullets. Early catalogs listed the 130 gr. FMJ bullets as .357" diameter for the Super. Common .357 jacketed projectiles lack the proper semi-auto ojive profile for proper feeding anyway. But the cast shooter had abundant options. Just my rant.

If you can get any of the AA powders t here is a lot of info

Gary Reeder
[subject]
Monday, August 01, 2022, 10:15 (10 days ago) @ WB

in there for the 38 Super. If you don't have that info here it is.
[image]
[image]

Years ago I sold Sean a Taurus .38 Super

WB
[subject]
Monday, August 01, 2022, 10:27 (10 days ago) @ Gary Reeder

It was rather garish detailed but it looked fun. Maybe one day he’ll tire of it. I didn’t get to play with it.

Nope I am keeping it, I looked at my data , nothing

Sean Harper
[subject]
Monday, August 01, 2022, 11:36 (10 days ago) @ WB

for 2400,

Sean

I’m surprised it olds enough #9 to work

WB
[subject]
Monday, August 01, 2022, 11:40 (10 days ago) @ Sean Harper

I like the low pressure data at higher velocity. LilGun usually does that.

Not enough room in the case

steve todd
[subject]
Monday, August 01, 2022, 12:28 (10 days ago) @ WB

12.0 grains of Lil Gun is max for 150 grain lead bullet, 11.0 is compressed… 12.0 is really smashed into a solid chunk, i know because i pulled some that i loaded..

Thanks Sean

steve todd
[subject]
Monday, August 01, 2022, 12:22 (10 days ago) @ Sean Harper

Must be something wrong with the newer, higher pressure. Speer #14 has 33k data for 2400, but it must run out of room in the case for 36.5k. Some talk on the internet says it can’t be crimped enough to get good ignition, that’s why i was asking here.

Thanks Scotty

steve todd
[subject]
Monday, August 01, 2022, 11:44 (10 days ago) @ WB

Yes sir the 38 Special case is much bigger, and much lower pressure. At the 33k pressure the 38Super was said to be midway between the 38 Special and .357 Magnum. I don’t know how close it gets to the .357 Mag at the current pressure. It can make “Major” at the old pressure, but some of the loads that the competition shooters are using are over the new max pressre. I’ll send you an email link to that info. Just gotta have a fully supported chamber (ramped barrel for 1911) and a recoil spring to match the load.

Thanks Gary

steve todd
[subject]
Monday, August 01, 2022, 11:35 (10 days ago) @ Gary Reeder

I do have some load data, but it is the 33k pressure, and it has been raised now to 36,500. I’ll have to get some #7 and replenish my #9. I’m not sure where i should “top out” velocity wise with the 36k pressure.

Just watch your loads as far as the brass is concerned

Gary Reeder
[subject]
Monday, August 01, 2022, 12:05 (10 days ago) @ steve todd

look for bulges at the web, cratered primers or extremely flat primers.

Will do, Thanks

steve todd
[subject]
Monday, August 01, 2022, 12:39 (10 days ago) @ Gary Reeder

It is a ramped barrel and for the hotter stuff i’m using Starline 38TJ brass. Also using Winchester Small Rifle primers, so primer read is not going to tell much. Maybe i’ll change back to small pistol primers for load development.

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