What happened to....

[Igiveup]

IMR or H 4320 powder. It is one I used years ago and don't see it listed for sale anymore. I don't need any, just a question of curiosty.

 

[Skeet 028]

I seem to remember it was the 1st IMR powder developed for the 270 Win. I have some IMR but don't remember H4320. Seem to remember it being useable in many cals but not great in any particular round

 

[TJm15.38]

I liked IMR 4320 and used it in several loads including .30-06 and .303 British. I never see it anymore, so I have switched to IMR 4064 and 4895 for similar applications.

 

[Photog]

It appears that sometime around 2021 it was discontinued. It is no longer listed on their website.

 

[Igiveup]

I also used it for my 30-06 and .303, besides a couple more. I got 8 lbs. of IMR 4895 on a good deal and have used it for the last ten years or so. I will have to find an old powder list and see what powder is above and below the 4320.

 

[rockquarry]

There never was an H4320. I used IMR4320 many years ago. There was a shortage of it, or maybe it wasn't produced for a while during the 1980s. I switched to IMR4064; charge weights, velocities, and accuracy were very close to IMR4320 results.

H4895 can likely replace both powders in most instances and provide very similar or perhaps better performance. It also lacks the temperature sensitivity of the two IMR powders.

 

[Nemo288]

I have an older IMR reloading guide and it lists 4320 as between 4895 and 4350 (4350 being slower).

 

[Nevada Ed]

It did ok in my 22-250 up to my 30-06 loads that I used, over the years.

The thing that I liked about it was it's short stick power, that flowed very well
and did not bridge like the longer IMR powders.

I prefered 4895 over 4060, in most of my other loads , except one Jack O'Conner load
with a 130 gr bullet in my 270.

H380, was a sleeper.

 

[Eddie Southgate]

It's my favorite powder and had they announced they were dropping it I would have bought all of it I could find. As it is I have 36 pounds so I will never likely run out but I would like to have more as both of my sons use it in their .243's . I use it in about any medium sized case and much prefer it to IMR 4064 or H4895 though I do use both a fair amount in certain applications. I have begged them to do an occasional run with no positive results. They dropped it and offered several new powders all of which they now seem to have dropped. Winchester did me the same way with the W680 but I was caught in worse shape there as I only have 2 pounds of it left. I watch gun shows for both but have yet to find any of either.

 

[Nemo288]

I still have a couple of pounds of W680 myself.
That's been out of print for 3-4 decades!
It was considered the premiere powder for the supermags and I shot a lot of it in the early
.44 Rhino/Gates/Supermag when we were making our own brass from 30-40 and 303.
1680 is supposed to be almost the same but I have never been able to get any decent accuracy (or SD) using it.
In the 1.6" revolver cartridges IMR4227 is now my preferred powder.
It doesn't give quite as much velocity but is VERY consistent, accurate, and easy to work with.
You didn't say what you were using W680 for but IMR4227 might be useful.
You ever get up here to Wisconsin, I'd lay the couple of cans of W680 I have on you as I don't use it any more.
Like primers, ball powders will last practically forever stored properly.

 

[Eddie Southgate]

I still have a couple of pounds of W680 myself.
That's been out of print for 3-4 decades!
It was considered the premiere powder for the supermags and I shot a lot of it in the early
.44 Rhino/Gates/Supermag when we were making our own brass from 30-40 and 303.
1680 is supposed to be almost the same but I have never been able to get any decent accuracy (or SD) using it.
In the 1.6" revolver cartridges IMR4227 is now my preferred powder.
It doesn't give quite as much velocity but is VERY consistent, accurate, and easy to work with.
You didn't say what you were using W680 for but IMR4227 might be useful.
You ever get up here to Wisconsin, I'd lay the couple of cans of W680 I have on you as I don't use it any more.
Like primers, ball powders will last practically forever stored properly.

Wish I was close enough , I'd swap you some IMR 4227 for it. I use it in .218 Bee and .22 Hornet and used to use it in .30 carbine till it got rare. I use Little Gun instead of 1680 and load the W680 every now and then for old times sake. Thanks for the offer , If I am ever up that way I'll bring trade goods and we will work something out.

 

[boatbum101]

Discontinued when Hodgon consolidated their product lines . Currently IMR extruded powders are being made @ General Dynamics in Quebec . Same plant also makes Accurate's line of extruded powders . If you aint been pricing powder lately an 8lber of the IMR extruded powders runs around $ 425 US , just about all single-based extruded powders have jumped significately . Believe it or not the Vihtavouri 100 series powders still around for the bargin price of $ 280 - 300 for an 8 lber . Insult to injury is the industry is talkin' more upcoming shortages .