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in some of the older reloading books, elmer keiths load of 22grains of 2400 is mentioned with the 429421 bullet.
current reloading books use about 20.5 grains plus or minus a little.
i realize the composition of 2400 has changed, but has anybody loaded that 22 grains of 2400 behind that bullet?
and if so, what happened?

I stopped at 20gn. Usually load at 19. Anything hotter I go with H110, 296 or N110.

What is the point in overloading?

Elmer wiped his asss with a pine cone too - wanna try it cause Elmer did it?

lot of things i could say, but you just ain't worth it.

Many, if not most of the load data for rifles and handguns, from 2 or 3 decades ago, using the same powders.....has been reduced! It seems to be pretty common! I believe, and I may be incorrect, but once a powder reaches the consumer market, with a specific designation (example 2400).....it must continue to be manufactured with those specifications! memtb

Pretty interesting test done by Larry Gibson on the cast bullet forum:

http://castboolits.gunloads.com/showthread.php?72355-B-2400-Hercules-vs-Alliant-B&highlight=2400

Shows actual results (pressure/velocity) using the 429421 and 20.5, 21.0, 21.5, and 22.0gr of Old H2400 and new Alliant 2400. If you scroll down past the verbiage (about 1/4 to 1/3 down the page), you can see the results. I'm pretty sure he was using an Oehler (SP?) unit that measurers pressure.

FWIW,

Paul

paul, thank you for that article it was what i was looking for.
i have pet loads by ken waters, he suggested as a pet load 22grains of 2400 with the 429421, which also suppose to be the elmer load.
i have reloading books going back to the 60's and up to the current date.
i was looking in a hornady book where without looking at had about 20 plus grains as max, but same bullet in the thompson contender they gave a maximum load wt of over 23grains.
i know the difference between a revolver and a contender but that seemed a lot.
then i got to thinking of a super redhawk, or a black hawk.
i don't typically if ever push loads up to the firewall, but it got me thinking.

I have before I switched to H-110/W-296. Infact I’ve gone as high as 23 grains. Factories in 60’s and early 70 loaded 240 44 mag loads to 1400 plus FPS. in fact Brain Pierce wrote that Winchester loaded a 240 grain jacketed to an advertised 1650 FPS thar got closer to 1t50 in actual revolvers.
I don’t know how much if any 2400 has changed but I do know that the old standard pressure fir 44 mag and 357 mag was 40,000 CUP but was changed to 36,000 PSI when they changed to PSI.

SAAMI specs on the 44 Magnum is STILL 40,000 CUP or 36,000 PSI depending on the type of pressure gun. PERIOD.

I ain’t buying that. I shot those 60’s and early 70’s loads and that wer 1400 FPS plus. I chronographed some early 70 Remington JHP recently that I had saved and they were 1400 FOS in my M 29. The speeds from factory Ammo dropped when they switched over. If they were the same then the speed would not have dropped.

I'd like to know what the fugk people are shooting at that requires that load.

Not that it's any of my business of course.

All I know is if 40,000 CUPs is equal to 36,000 PSI Remington, Winchester, Federal are all SAAMI members were grossly exceed the SAAMI pressure.

The voice of intelligence. Ha Ha Ha

Ya'll debating pressure in a .44 Mag when you could just use the mighty .380...but, I won't criticize anybody that avoids that level of abuse.

Chihuahuas. If you gotta shoot a bear you go with the 9 unless you're assshooting him and then you use the 600 Dinosaur or whatnot.

Brainiac, explain the difference in velocity of the older factory loads and today’s

Give me an example of the velocity differences you are talking about. You made the statement concerning pressures from out of your hat. I stated an easily researched bit of information on that many seem to not be able to get through their heads that 36,000PSI and 40,000CUP is the difference between a peizo transducer pressure gun and a copper crusher pressure gun as both are referenced with the same reference ammo.
Tell me wizard which is more 1 inch or 25.4 MM? Same situation.

Older .44 Mag ammo is noticeably hotter than it is today. If you haven’t run any of the current crop of factory .44 Mag ammo over a chronograph, you should. It will be eye opening and underwhelming. There is no reliable CUP to PSI conversion, but it is my understanding that 40,000 CUP is considerably higher than 36,000 PSI.

Sorry for the thread hijacking.

Your understanding of the pressure guns and the type and how they are referenced is flawed.
Give me some actual examples of rhe chrono results of the old ammo you are talking about. Not some hearsay of the chronoing of ammo that has been kept in questionable storage etc..

You clearly know more than I do so I will leave you to it.