DuPont IMR 4320, IMR 4350, IMR4227

[WYO300RUM]

IMR 4320 is THE powder for 22-250.

4320, 4064 and H380 always worked great iny 22-250's.

 

[Raudy707]

IMR 4320 is THE powder for 22-250.

That's what I'm saying! If not for my great uncle handing this powder down to me I never would have shot it. Now I use it in a few rifles. 34 grains under a 53 grain HP match shoots one hole groups. Mid speed load around 3400 fps. If it gets 85-90 degrees I have no worries about my load. Out of my Grandpa's Rem 788 22-250 that he passed down to me it's pretty ridiculous. Showing off for my buddies I bet them $20 bucks I could hit a dime at 200 yds. One shot later and I was putting $40 bucks in my pocket. Nothin wrong with 4320.

 

[squawberryman]

I'm not gonna read seven pages to see if someone told you 4227 is the 44 magnum powder of choice.

 

[Mike apple]

So what's the best use for the 4320? It's obsolete now, but I guess used to be utilized in 270 Win or 30-06. I have my Dad's guns. He told me his Model 70 Super Grade( 1948) would !all be in a dime @ 100 yds. I never saw him do it BTW. But he was a much better shot than I.

I saw where it's high up on the .243 load charts I thought, then the 4350 steps up to like a .270. I like the reloader, and Hodgen powder myself

 

[Chas1]

How old is old and how was it stored ?

 

[memtb]

I'm not gonna read seven pages to see if someone told you 4227 is the 44 magnum powder of choice.

Well, it "was" for me….but, that wasn't the topic! memtb

 

[squawberryman]

It's in the header

 

[memtb]

Well, it "was" for me….but, that wasn't the topic! memtb

I thought the topic was concerning the use of "old" powder! Not what it could be used for!

I didn't use the forward of a book for my book reports when in school! memtb

 

[squawberryman]

As Charlie Brown would say, good grief.

 

[antelopedundee]

I'm not gonna read seven pages to see if someone told you 4227 is the 44 magnum powder of choice.

I've used it in .357 mag with 125 JHPs.

 

[antelopedundee]

I thought the topic was concerning the use of "old" powder! Not what it could be used for!

I didn't use the forward of a book for my book reports when in school! memtb

In his second post the OP asked what IMR4320 could be used for. And to clarify his first post, the powder will have an odor regardless. It should be a sweetish odor and not a sour odor. I don't have any 4320 layin around. I do have a little 4064 and 4350 that I'm saving for .243 loads.

 

[big johnson]

IMR 4350 is still my choice for my 300 whinny with 180 black tipped bullets (Sirrocos).

 

[Dirtdevil]

I am using it now in a 308. It faster and more accurate than varget. If I ever shoot up the 8lbers I will swap over

 

[irelynd1]

So what's the best use for the 4320? It's obsolete now, but I guess used to be utilized in 270 Win or 30-06. I have my Dad's guns. He told me his Model 70 Super Grade( 1948) would !all be in a dime @ 100 yds. I never saw him do it BTW. But he was a much better shot than I.

I have several 1 lb cans of 4320. Didn't know it was discontinued.