Home Forums Hunting & Shooting Ask The Gunwriters Switching from IMR. 4350 to H 4350 in my 30/06. Should I expect much difference?

Heard nothing but fantastic things about Hodgdon's version...want to give it a try. My go-to load is 57 grains of IMR behind a 165 grain nosler.

Can't assume that load will click with Hodgdon's , but will it be close you think?

Yeah, it'll be close. H4350 is usually a little slower.

Was wondering about this myself.. When I restock on 4350 I'll go with H.. But that will be a while.

What he said, but both versions are excellent. Some guns give a little better accuracy with the H verions, some with the IMR version.....

Mine liked the IMR version better, but you had to look close to see it. I used the H version for it's velocity consistency in regards to temperature.

Buy the one you can find, or the one on sale. No practical and noticable real world difference imho.

I prefer the IMR version... but that being said, if I had to use Hodgdon's version instead, I still wouldn't feel an ounce of handicap in that situation....

I like IMRs version because it has been around longer and its an American powder, even if made in Canuckistan nowadays....

I've still burned plenty of H 4350 tho....

Buy the one made in Australia!

I use 59 grains of H-4350 behind the 165/168 grain TSX or Nosler. My accuracy is excellent with IMHO, oustanding velocity

Ok, thanks everyone. Got probably ten, twelve # of IMR, but wanted to try H 4350 because of the temp insensitivity, supposedly greater consistency, and just see what the fuss is all about.

Thanks again

One of the other advantages of H4350 nobody mentioned is MUCH easier and more accurate metering through a powder measure, if that makes any difference to you.

+1

I regularly load 243 ammo that's well below MOA to 300 yards with thrown charges of H4350.

I just shot 4 groups yesterday, with my .243, to see if it were still zeroed from last year. Nuttin' over an inch.

It were just fine. That little rifle really likes it's H4350.

I do have to pour my charges, though. With the .45-70, the opening of the case is big enough I can throw the powder at it, but too much powder misses the opening on the .243. Actually, I HAVE to get the charges to the tenth of a grain. It's a compulsion that drives me to drinking, and I like drinking.

You should see what a good 308 can do with crunchily thrown charges of 4064 or 3031, but your skin would probably crawl if you saw me seat the bullets without weighing a single powder charge.

Yep, 4064 is my go-to powder for my M1A, w 168's...42.0 gr

Yep, Like I said, it would drive me to drinkin'. When's the next time you're seating bullets??

The only problem I'm having with it is it's harder to find than IMR right now!!! As everyone else has probably mentioned, it's (H4350) easier to meter thru the powder measure and it's less temp sensitive. I've seen it time and time again when I run them across my chrono....This in turn has an affect in accuracy and POI...Some of my rifles only see fall/winter use so I don't see much of a change with the IMR 4350, but if you like using some rifles all year long like I do my 30-06's (ops cartridge in question), there are benefits to using H4350...

The proof was in the pudding. Switched to H4350 to minimize my powder inventory.In my .270, 7-08 and my 30-06, I can switch 2-3 bullet grain graduations and still have same point of impact at 100 yards with near max loads in all. My velocities (trivial for H4350) were a tad better than the book listings. Don't have to do much of any re-sight when switching. Happy with the velocity's. Two of the 3 are Rem 700 Mtn Rifles, and the 3rd is Rem 700 CDL, both Mountain rifles are 22" tube, and CDL is 24" tube(survey of 3 guns/calibers)

Where can one buy H 4350 these days? I've not seen it in a couple of years.