anybody use AA5744 in a 450 Bushmaster

[mavracer]

Am in the process of building a 450 Bushmaster AR, I plan to reload and I have a good supply of Accurate 5744, it seems like it should be a decent powder for heavier bullets.
Just wondering if anyone has tried it and what your results were.

 

[cfullgraf]

Here you go, check page 62.

http://www.ramshot.com/wp-content/uploads/2010/09/WesternLoadGuide1-2016_Web-1.pdf

 

[mavracer]

Yes I have the load data, I want to know how it actually works.

 

[Walkalong]

It works well with larger big bore straight walled rifle calibers, so I would expect it to do well, but don't load for the .450.

 

[Toprudder]

So far I have only tried 5744 in 460 S&W, reduced loads with regular 45 230gn bullets. (450b and 460S&W are very similar) It works fairly well except for some unburned powder left in the cylinder. I suspect that would clear up with full throttle loads. I have an AR in 450b and have all the dies for it, just have not worked up any loads for it yet. I heard Lil Gun is great in 450b and I have some of that I will try as well, whenever I get around to it.

 

[someguy2800]

I would expect it to be pretty low velocity compared to whats possible with other powders since its really bulky but I bet it would work well.

 

[mavracer]

Ac

I would expect it to be pretty low velocity compared to whats possible with other powders since its really bulky but I bet it would work well.

According to the data it's pretty close to what is possible with lil gun, I'm not really that worried about 100 fps or so if it's accurate.
I'm looking to run 300gr XTPs or maybe MBC hi Tec coated @ 1600-1800fps as long as it's 2" @ 100 capable I'd be tickled.

 

[someguy2800]

Sounds like that will be perfect for that. I've been told that 5744 is less temp sensitive than the magnum ball powders usually used for that type of round though I've never tried 5744 in cold temps. Zero'd a couple inches high at 100 you should be around a couple inches low at 150 and about 8 inches low at 200.

 

[Toprudder]

Sounds like that will be perfect for that. I've been told that 5744 is less temp sensitive than the magnum ball powders usually used for that type of round though I've never tried 5744 in cold temps. Zero'd a couple inches high at 100 you should be around a couple inches low at 150 and about 8 inches low at 200.

I don't know about other bullets, but I calculated that the factory Hornady 250gn, if zeroed 3" high at 100, would be about 3.5" low at 200. This would be from an AR with a standard scope height above the bore.

 

[someguy2800]

I don't know about other bullets, but I calculated that the factory Hornady 250gn, if zeroed 3" high at 100, would be about 3.5" low at 200. This would be from an AR with a standard scope height above the bore.

The hornady ftx factory load is about 400 fps faster than what he is talking about doing with a much more streamlined bullet. I was just going off what I see from my 444, 357 herrett, and 357 maximum at similar velocity using revolver bullets. I zero most things about 1-1/2 to 2" high at 100 and I need about 6-8 inches holdover at 200 with them.

 

[dh1633pm]

I don't load for the bushmaster. However I do load for 45-70 and AA5744 is just what the doctor ordered. I have also used it for 45 Colt Rifle loads. It doesn't burn well in short pistol barrels, something to consider.

 

[Toprudder]

The hornady ftx factory load is about 400 fps faster than what he is talking about doing with a much more streamlined bullet. I was just going off what I see from my 444, 357 herrett, and 357 maximum at similar velocity using revolver bullets. I zero most things about 1-1/2 to 2" high at 100 and I need about 6-8 inches holdover at 200 with them.

Gotcha.

 

[mavracer]

I got 20 loaded up, ended up with 300 gr XTPs. I also got notice that my barrel shipped Friday. I'll update the thread with results in case anyone is interested.

 

[Toprudder]

I got 20 loaded up, ended up with 300 gr XTPs. I also got notice that my barrel shipped Friday. I'll update the thread with results in case anyone is interested.

Yes, please!