AA MP-5744

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  • Last Post 30 March 2011
James Ball posted this 20 March 2011

I picked up 15lbs of AA MP-5744 does anyone have any data or know when it was last produced?price was reasonable,$1.00 per lb.Smells good, looks good,Was stored inside,One jug was unopened.Would still consider it a dry powder.James Ball 

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joeb33050 posted this 20 March 2011

It seems that there were different sources at different times. Since it has been reported on favorably a lot, I went through three pounds in cartridges from 45-70 to 308 Win. Some left a lot of ?unmburned? powder in the barrel. I never found the secret.

My guess is that you will have better luck, having 15# iof one lot of powder.

Keep us informed, I'd like to try it again if it works for you.

joe b. 

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Clod Hopper posted this 20 March 2011

Here is the data for AA 5744.

http://www.accuratepowder.com/wp-content/uploads/2011/01/accurateloaddata3.5.pdf

I would advise you call AA and find out if this data is good for your older lot. I am not sure of the history of this powder, but I suspect the MP was surplus powder or came from a different source than the powder by that name today. I doubt your lot is radically different. In other words, use AA's current starting loads, or start 10% low, and work up. I think Mike Venturino wrote an article in Handloader on the original powder, but then my memory ain't too good.

Dale M. Lock

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Clod Hopper posted this 20 March 2011

Here we go. Handloader 113, January-February 1985. I doubt I can legally scan it and send it to you, but tell me what cartridges you are interested in and I can tell you what it says. Handloader load for a 170 cast bullet in the .30-30 (MP-5744) is 17 grains, 1650 fps, and 37,000 CUP. Current data is 5744 170 LC RNFP 19.8 1,791 22.0 2,035 32,800 2.550.

Dale M. Lock

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Clod Hopper posted this 20 March 2011

Current AA date for .30-30. Powder 5744 Bullet 170 LC RNFP 19.8 grains 1,791 fps 22.0 grains 2,035 fps 32,800 psi OAL 2.550

PSI is not the same as CUP.

For 150 jacketed in the .30-30, Handloader says 20 grains, 1,900 fps and 38K CUP.

Mike Venturino did write the article and has some loads for old BP catridges too.

Dale M. Lock

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RicinYakima posted this 20 March 2011

The first MP 5744 I used was sold in the 2# milk jug plastic carton. It was 10% nitroglycerin and heavily deterrent coated. It was made by IMI (Israel) for the 40MM grenade launcher round. (All of the DuPont SR 4759 was being used in the US for the same purpose at that time, the 1960's during Viet Nam.) While it took some pressure for it to burn cleanly, it was very consistent and gave great accuracy in 25/20 and 32/20 with jacketed bullets for me.

The stuff AA had made for them is <10% nitroglycerin with less coatings and burns cleaner, but still take more pressure than some others. This seems to have made it better for black powder cartridges, but only with top pressure loads.

FWIW, Ric

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onondaga posted this 20 March 2011

I Have used 5744 in .458 Win Mag. It prefers heavy bullets, solid crimp and the addition of fillers when powder fills less than 75% of the case for good ignition. The powder is currently marketed as not being position sensitive for ignition in reduced loads. That is a good observation when you follow Accurate Powders loading guide, but dropping below recommended minimum charges will see ignition problems without calculated filler loads compressing the powder. I use BPI Original Filler and add the weight of the filler used to the bullet weight for a total projectile weight when calculating charges, velocity and pressure safety.

Gary

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DAMRON G posted this 20 March 2011

I still have about 6# of MP5744 and use 25g in the 35 Whelen with 250 and 280g bullets as my best load.I also use it in the 22-250 and 30-06 with 4759 data with good results.

George

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Kit posted this 21 March 2011

5744 is also the #1 powder recommended by Savage Arms for the 10-MLII muzzleloader smokeless loads. ie. 44gr. 5744, 300gr. Hornady (.45) in .50 cal sabot at 2218fps.  This load is lightening quick on ignition.......and punishing on the shoulder.

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runnin lead posted this 21 March 2011

I should have some accurate loading data around here some place from the mid 80s. they were only about 10-12 pages. Stuff worked great in 44 mag.

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billglaze posted this 30 March 2011

I am using the currently available 5744, so this may not be quite relevant, but......here goes. It seems to be the best powder for accuracy in my .244 Remington 40XB. S.R. 4759 is a close second place. I first used 4759 about 1958 to work up a lead bullet load in my .220 Swift. It (the Swift) seemed to like 10.5 gr. for accuracy; inside a minute at 100 yds, no leading, stock Model 70, factory barrel. In the 40XB it seems that between 14-16 gr. is the best with the 95 gr. RCBS bullet, (100 gr with GC and lube) works out to ~1700 fps on the Oehler. Still working on the .30-'06 and .308 loads with different cast bullets; seems as if ~22 gr. or so may work. I'll write in if I get anything startling.

In theory, there's no difference between theory and practice. In practice, there is. My fate is not entirely in Gods hands, if I have a weapon in mine.

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