45-70 & Accurate 5744 powder

[getitdone1]

I'm using Accurate 5744 in my Browning 1886 SRC 45-70 to duplicate the Remington 405 gr factory load. Yesterday when shooting fast I noticed when case would exit the chamber I'd get little, rather warm specks/granules of unburned powder hitting me in the face. I'm sure this is unburned powder but I can't detect any significant amount of it. Did see a small amount of it when I'd eject case over my table. Once I've used-up this canister of 5744 I'm done with it. Using Winchester LR primers. Standard, not magnum.

Anyone here experienced this? If so did you switch to another powder for same performance. If so, what powder?

I think I read that 5744 was not case position sensitive and thus required no filler. I really don't want to get into using a filler.

I also don't like the chance of granules of powder getting into the action.

Don

[Hobie]

I wouldn't think that 5744 was what I'd choose for that application. But that's just my opinion. I take it that you're loading the 27.0 gr. AA recommends for that load level, right? I know folks have used Unique, 2400, 3031 and so forth. I've been using the 300 gr. jacketed so used 54 gr. H322. Works a treat DUPLICATING factory 300 gr. load ballistics for both the Remington and Federal loads when fired in my two .45-70s.

[Chuck 100 yd]

I have found 5744 to be a very accurate powder in many loads but it does leave unburned powder granules behind.I shot 300 gr. cast bullets over IIRC 31 grains 5744 in my .45-70 to get some fine accuracy.

[Old No7]

"I have found 5744 to be a very accurate powder in many loads but it does leave unburned powder granules behind..."

Well, as they say, a picture is worth a 1,000 words...

Here's my 38-55 High Wall after a shot with 5744 :

38-55 Fouling xmp5744.jpg

And here's a comparable load after SR4759:

38-55 Fouling sr4759.jpg

And lucky for me, the latter load is more accurate too. Yes, I know it's a smaller bore, but we ran the same tests in my late father's .45-70 High Wall and he saw similar results. He just didn't own a digital camera.

Tight groups,

Old No7

[Don McDowell]

I've not had any problems with the old maids from 5744. A bit tighter crimp or a bit more powder etc, that will bump the pressure up just a tad will clean the barrel up quite a bit.

[Ysabel Kid]

I also have seen some unburnt powder granules in my .45-60 WCF loads. I do use a KirkD recipe with this powder for that caliber as well as .45-70 Govenment which includes 1/3 sheet of TP loosely folded. 26.2 grains. This is not an overly-powerful load, shoots well, and didn't leave much if anything in the way of unburnt powder.

[Sixgun]

Except for my elk loads, 5744 and sometimes Unique is all I use for a couple of dozen dash caliber cartridges.

It requires a stiff crimp, but it still leaves junk in the bore. 5744 is so uniform in extreme spreads and in ignition, I have not found anything else that gives me that performance in the velocity ranges that I use. (1200-1600 or so) (A bit higher in the 30-30, 32 Spl--1800)

Its nothing for me to shoot 100-150 rounds out of a 45-70 (28 gr. with a 375 NEI @ .459) in a single outing. I never have noticed feeding or operating problems due to the unburned granuals. Sometimes a grain or two with remain in the chamber and upon firing the next round, you can see the dimple on the outside of the case when its ejected.

Some guys don't like that. I never did let the little things bother me as long as the end result was getting what I wanted.--accuracy at the velocity I want.-----------Sixgun

[6pt-sika]

Plugged this one using a circa 1978 Marlin Model 1895 shooting the Ranch Dog 460-350GC and 34 grains of XMP5744 .









To be honest I've used XMP5744 in a pile of lever cartridges most everything from the 25-36 Marlin up to the 45-70/450 Marlin and have killed deer with most of the cartridges using that powder !

I found this powder to not be concerned about position in the case .

[6pt-sika]

Let me say this I started my cast bullet loading for the 45-70 with SR4759 . After awhile I changed over to XMP5744 .

And now I shoot H322 almost exclusively in my 45-70 .

[getitdone1]

Let me say this I started my cast bullet loading for the 45-70 with SR4759 . After awhile I changed over to XMP5744 .

And now I shoot H322 almost exclusively in my 45-70 .

6pt-sika,

What were your problems with the first two powders and why have you settled for H322?

Have you found any of these to be "case position sensitive?" That is, do each give consistent velocity without using a filler material?

Don

[6pt-sika]

Let me say this I started my cast bullet loading for the 45-70 with SR4759 . After awhile I changed over to XMP5744 .

And now I shoot H322 almost exclusively in my 45-70 .

6pt-sika,

What were your problems with the first two powders and why have you settled for H322?

Have you found any of these to be "case position sensitive?" That is, do each give consistent velocity without using a filler material?

Don

SR4759 seemed a little case sensitive , XMP5744 was fine but I wanted a bit more velocity so I went to H322 .

[kragluver]

My friend has experimented with a number of cast bullet powders in 45-70 and had the same experience with 5744 (unburned powder). I know many swear by 5744 though. He and I have both used 4759 with no issues. In fact, I use 4759 in all my cast bullet applications with good success - 30-06, 30-40, 303 and 45-70.

[msmith1228]

Magnum primers will help. They are all I use with 5744.

Mack

[BigSky56]

Big + on the mag primers and heavy crimp it will solve most of your problem. danny

[getitdone1]

Thanks for the mag primers tip. To what extent will they up the pressure and velocity? Very little would be my guess.

Don

[Sixgun]

My friend has experimented with a number of cast bullet powders in 45-70 and had the same experience with 5744 (unburned powder). I know many swear by 5744 though. He and I have both used 4759 with no issues. In fact, I use 4759 in all my cast bullet applications with good success - 30-06, 30-40, 303 and 45-70.

I had a nice conversation with the ballistics tech at Accurate Arms. He told me magnum primers will do nothing for the unburned granuals. I experimented with both kinds of primers and chronographed the loads. Mag. primers gave me no noticable advantage. He told me to use a hard crimp--thats all.

Its still a free country so you and the boys can choose what you use.-----Me

[Richard]

Been using 4198 for some time now in my 45-70's and been very happy with it. You can makin' soft, medium or wild, all great to shoot.

Although I am going to try H322, some like a winner!