SR 4756 Powder Uses

[Pirate69]

I recently scored some SR 4756 powder. I did an Advanced Search to see what load data may be available on this site. Got about 41 pages that contain the "SR 4756" text. It took a while to go through them. This is what I think I understand about the powder.

It has a slower burn rate than Unique and a faster burn rate than Herco. I should be able to use data slightly less than Herco loads and not be overly concerned about chamber pressures. First uses will be in 30-06, 308 Win, 6.5 Carcano and 6.5 Swede. Loads will be from moderate to light since I want to produce loads for kids to enjoy. Not a lot of data on light loads was found. Probably will not exceed 1200-1300 fps; depending on where I find some accuracy.

Anyone see any concerns that I need to be aware of? Thanks in advance for any comments.

Pirate69

[Ford SD]

Not sure on how it will work in rifle cases as the fill ratio will be low

I have used it in cast 357 mag and a few others

look for IMR data around 2007 and there could be some online data

[RJM52]

It was the GREATEST powder made for making "Specials" into Magnums... I've never seen rifle data...

My favorite powder for .38 Special when making .38-44 loads, .38 Super high performance loads, .45 Colt self-defense loads...

Hope they hung whoever came up with the idea of dropping that powder.

Bob

[Bookworm]

Lyman 3rd edition Casthas data for SR4756 in rifles. Specifically, 30-06, but there are others.

Generally, it stays with lighter boolits for cartridge. No heavyweights.

[jdsingleshot]

I've been using it for more than 40 years in .30-06. Recently started using it in 7.65x53mm (10g, 175g cast bullet) and .25-20 WCF.

Have had no issues.

[Pirate69]

Lyman 3rd edition Casthas data for SR4756 in rifles. Specifically, 30-06, but there are others.

Generally, it stays with lighter boolits for cartridge. No heavyweights.

Yes, there is quite a bit of load data for both the 30-06 and 308 Win. I think I have enough data to work with on those two calibers. Now to find some data or correlation to the 6.5s.

[10x]

Gordon's Reloading Tool , both freeware and subscription, is your friend on this one.

[gunther]

Seems like 4756 also has a flash supressant in it, too.

[jdgabbard]

Personally, I have used it with 4# Buckshot loads for 12ga with great results. I've also heard it can be used in various pistol calibers. I only have a little under a pound left, so I use it for the shotgun when I load for it.

[Gewehr-Guy]

I have read somewhere that it is the perfect .32-20 revolver powder.

[Minerat]

I've used it for fast 1230 fps 1oz 2-3/4" 20 ga pheasant loads since 1970. Also in .44 mag and .357. I'm now saving the last 2#s I have for the shotgun loads.

[15meter]

And now for something completely different,

There are multiple 16 gauge loads listed for 4756.

Just sayin'.

[Jeff Michel]

Great shotgun powder. I wish the mutton heads still made it.

[Pirate69]

Thanks for the information everyone.

[jsizemore]

Great shotgun powder. I wish the mutton heads still made it.

I thought I saw it was reintroduced.

[trapper9260]

I use it in 10 ga beside some handgun and rifle loads