? about 5010

[IMR]

Tell me about IMR 5010 powder.
Is it faster or slower than 7383?
Is it bulkier or finer?
is it compression sensitive?
Can it be used in straightwall and bottleneck cases?

Thanks,
IMR

[StarMetal]

5010 is slower. It's 50 cal and larger powder. It has thick kernels not necessarily long. It can be compressed. No, don't use it in straight walled cartridges and the powder needs either a bottleneck restriction or some resistance to get it too burn better.

Joe

[Maven]

IMR, As Starmetal said, IMR 5010 isn't designed for straight-walled cases and needs a heavy CB, a mag. primer and a compressed load to burn more efficiently. Even so, a good deal of it will be unburned and blown as much as 30 yds. from the end of your bbl. I've used it to good effect in the 7.5 Swiss, the .30-06 and 8 x 57mm, but always with a filler, a mag. primer and a heavy CB. PM me if you want load suggestions.

[IMR]

Maven & Starmetal,
Thanks for the info. Sounds like a powder I could work with. If my tax returns provide enough for toys, I might place an order for some along with some other types.

IMR (I Make Reloads)

[rockrat]

I used it in my 375 H&H Ruger #1. Not too shabby with a heavy cast bullet. Don't need fillers as I use a casefull with a little compression when seating the bullet. Unburned powder by the bucketfull, but I get rewarded with 1.5" groups. About all I can do with the lousy trigger pull.

[IMR]

Me thinks I might rethink this. Not too keen on blowing powder down the barrel. IMHO, the powder should burn, not act as a self appointed filler.
Nevertheless, thank y'all for the info. I'm edgukated now.

BTW, Maven, your avatar reminds me of my Dad. Man, he loved trains!

[StarMetal]

IMR

2400 powder rarely burns completely without some getting blowed down the barrel and other places and it's noways at all in the slow league that 5010 is. Don't let that statement discourage you, it really doesn't blow that much powder down the barrel, yes more then say 4895, 3031, 4064, etc. Its a dang good powder for the price. I have an Austrian Model 95 carbine that shoots the 8x56R round and mine happens to shoot one of the bullets designed by Oldfeller on the board here into 7/8 groups at 100 yards with peep sights using 5010 powder. Don't sell it short.

Joe

[Buckshot]

.................I have some several years old Thunderbird cartridge 5020 ball, which is slower then WC86o and 872, so probably also slower then 5010. In the 8x57 Mauser with a 240gr cast lead slug a full caseload (57 grs) propells said slug to 1975 fps from the 29" bbl of my M38 and M88/14/35 Turks.

Neatest deal is is that it's clean as a whistle!

What do you plan on trying it in? Give us a hint of your plans for usage.

......................Buckshot

[IMR]

Well, Sir, since y'all are willing to help, I'll take the help.
I own rifles in the following calibers:
.223
.270
7.5 Swiss (purchase pending)
.30-06
.303
8 MM
.45-70

Of these, I cast for all but the first two. All my molds and dies are made by Lee. I use 14 lbs. of wheel weights and 1 lb. of Taramet Sterling or Silvabrite solder as my alloy. I size all my cast bullets and experiment with different lubes, some being some rather strange concoctions and/or products. I use strictly milsurp powders and a LOT of IMR 7383 at that.
I'm a recreational shooter and am not interested in competition or trying to one hole at 300 yds. I just like to hand load and shoot. I do try for good groups and I do work my loads up carefully. However, I own the guns, they don't own me.

Well, Sir, there ya' have it. That's who I am and that's what I'm about. That's my story and I'm stickin' to it.

IMR

[Johnch]

I wonder if 5010 would be a powder that would burn better if a small charge of 2400 or some other powder was just over the primer to ignite the 5010 .
Then hold everything in place either with slightly compressed loads or Dacron ?

Johnch

[Buckshot]

I own rifles in the following calibers:
.223
.270
7.5 Swiss (purchase pending)
.30-06
.303
8 MM
.45-70

.223.........Nope, no good. Now if it was a 22-250..........

.270.........Yes! Probably give you some pretty respectable FLGC ballistics too!

7.5 Swiss ..........See Maven's post

30-06 ...............See Maven's post. I can also add that a caseload sends a med heavy cast slug off at about 2100 fps. G-VG accuracy. Deputy Al has tried this also.

.303 ...............Prolly not so shiney. Moderate boiler room, big bore.

8mm (8x57).... See my post above.

45-70............... Forget it without a duplexing charge.

Smokless needs pressure to burn efficiently. At it's most efficient it's a bomb. We wanna stay this side of that.

So to help it, as Maven has suggested: Big heavy slug, hot primer, a filler for partial loads, jam the slug into the lands, maybe a good healthy crimp.

Of those you listed, the 270 is a definate winner. Two other common ones would be the 6.5 Swede and the 7mm Mauser.

.....................Buckshot