imr 7625

[30calcaster]

Garage sale jackpot!!!! 4lbs of IMR 7625 for $15!!!!
Still smells and looks good.

I looked through the threads for any info on the powder and didn't find any. I've seen the charts place this powder almost as fast as Green Dot and slower than Herco.

Has anyone loaded 308 with this powder? What has your experience been with this powder?

[felix]

7625 is never slower than Herco. Barely slower than Unique in some loadings, but can be faster by the same percentage when the bore size is smaller, much smaller. Suggest loading it as Unique and make adjustments from there. ... felix

[wiljen]

I use 7625 as a single based unique and it does real well in 200gr .45 ACP SWCs

[Dale53]

.30calcaster;

Fully in the spirit of "The first liar doesn't have a chance" I would like to relate that I beat your price on powder. Today, in a gun shop, no less, I picked up 4# of 7625, 5# of PB, 4# of Blue Dot, and 1# of Bullseye. All powder looks good and totaled 14# of powder for a grand total of $25.00. I did NOT negotiate. I asked him what he wanted for it, and when he told me how much, I reached for my pocket. The dealer had apparently bought out a "reloading estate". I also picked up several sets of dies for a total of $15.00 additional. They were not in the best condition but will work just fine.

Now, to avoid high jacking your thread, there is a lot of 7625 data in the Lyman handbooks. Both the Cast Bullet Handbook (3rd Edition) AND the latest Lyman Reloading Handbook (49th Edition). Most of the loads have pressure data. If you can find any of the older Dupont Powder handbooks they include data for most calibers with 7625 (as well as PB).

7625 is faster than Unique according to Lyman's pressure tests. It would be prudent to use Lyman's data if you can.

I have shot a caddy of it through my 1911's (full house loads for IPSC when "Major" requirements were a lot heavier than these days). It measures well, does not create surprises, and is reasonably clean (although that is not one of my "high priority issues").

Needless to say, I will be shooting quite a bit more of 7625 than I had anticipated.

Dale53

[30calcaster]

I can't beat that .It was a spur of the moment thing while passing by. I bought from an elderly gentleman on a farm who has quit reloading and decided to get rid of it. He had sold everything else except for the 4# of 7625. Being in an old metal container that looked to be in poor shape, I think I know why it didn't sell. Powder was still good!

I feel cheated out of having the braggin rights of the best find, I need to sniff out another one. You are right about estate sales. One of the guys that shoots Service Rifle at my club said he came away from an estate sale with 16 rifles for just over $6500. Evidently a widow wanted to get rid of them quickly. They sure can yield good deals.

My mistake about the burning rate of the powder. I had found an old article from Propellant Profiles. The article covered both 7625 and 4756. I was reading it in bed, and was occasionally nodding off. Not a good way to educate myself properly.

[Dale53]

30calcaster;
I did not mean to "throw water on your deal" - you got a GOOD one, as did I. My cans were old appearing also, and that is why someone else hadn't jumped on this. However, the powder is good and I believe it is what it seems to be. I will be using the chronograph for the first run at each powder to make sure it IS what it is supposed to be. The caddy of Blue Dot is a bit easier to make sure of (it has Blue Dots in it, just like Red Dot has Red Dots, and Green Dot, well you get the idea).

I am NOT a fan of running rifle cartridges with pistol powders. The problem CAN be serious if you double charge it. It is very easy to double charge as most pistol powders take up so little room in a rifle case. However, Ed Harris (who I greatly respect) has developed working loads of Red Dot (a fast burning pistol powder) in various rifle cartridges with good results.

Dale53

[sargenv]

I can beat both of you.. scored a 12 pound steel can of 7625 for gratis from a friend who um.. couldn't make it run in his 38 super and he didn't want to deal with it's inconsistencies...

Another friend gave me a 4 or 5 (can't remember, likely 4) pound partially used can of Hodgdon Benchmark..

I have some really cool friends...

[Dale53]

sargenv;
I told you, "the first liar didn't have a chance"

On the other hand, there is near NOTHING that beats good friends.

Dale53

[30calcaster]

I am NOT a fan of running rifle cartridges with pistol powders. The problem CAN be serious if you double charge it. It is very easy to double charge as most pistol powders take up so little room in a rifle case.

I totally agree with what you have said. When I loaded my GP100 with Bullseye I was always looking down the case to make sure it was not double charged.

I'm ok. Can't win em all

[sargenv]

One reason why I use trail boss in all of my reduced anything loads.. It's a bit more expensive but the stuff is fluffier as heck and no way to double charge it in the cases I use. 8.5 gr gets me about 70% full and there is no way to double charge 38, 44, or 45 colt with it.

[Dale53]

sargenv,

If I didn't have so much experience with older powders (and have so much) I would consider Trail Boss, myself.

The other consideration, is my "standard loads" with .44 Special and .45 Colt are somewhat above Trail Boss loads.

If you buy in 5.0# caddies the price of TB is comparable to a lot of "normal" powders.

FWIW
Dale53

[BerdanIII]

From Lyman Cast Bullet Handbook, 1973:
SR7625

.308 Winchester (.308 WCF)
120-gr GC #311359 - 12.0 to 15.0 - 1704 to 1953 - 26.4K to 39.4K CUP
123-gr GC #311576 - 11.0 to 14.0 - 1600 to 1851 - 27K to 39K
150-gr GC #311440 - 11.5 to 14.0 - 1481 to 1661 - 30.5K to 39.4K
155-gr GC #311466 - 11.0 to 13.0 - 1490 to 1650 - 30.5K to 37.7K
173-gr GC #311291 - 10.0 to 13.0 - 1290 to 1560 - 28.8K to 39.9K
176-gr GC #31141 - 10.0 to 13.0 - 1272 to 1499 - 24.6K to 38.6K
180-gr GC #311467 - 10.5 to 13.0 - 1320 to 1508 - 27K to 36.9K
183-gr GC #311407 - 10.0 to 12.5 - 1254 to 1470 - 24.6K to 37.7K
193-gr GC #311334 - 10.0 to 12.5 - 1222 to 1402 - 24K to 37K

I have never used it, myself.

[30calcaster]

that's great, thanks