IMR 4320

[ballpowder]

I been wondering for a long time. Why is it that 6mm BR guys will use Varget and RL 15 but never will you see a a guy saying IMR 4320 doesn't work let alone does? Has anybody tried it?

I'm not a 6MM BR loader BUT I have come to realize that when AA2520, IMR4064, Varget, RL15, and IMR 4320 are compared, that 4320 has a lot going for it. I actually use IMR 4007 a ton as well but that's on it's way out....


Tim

 

[CatShooter]

I been wondering for a long time. Why is it that 6mm BR guys will use Varget and RL 15 but never will you see a a guy saying IMR 4320 doesn't work let alone does? Has anybody tried it?

I'm not a 6MM BR loader BUT I have come to realize that when AA2520, IMR4064, Varget, RL15, and IMR 4320 are compared, that 4320 has a lot going for it. I actually use IMR 4007 a ton as well but that's on it's way out....


Tim

I have wondered that also...

I have a good friend that is a well known 1,000 yard shooter and rifle builder. He has a shop and he sells supplies.
I thought IMR 4320 looked like the right burning rate for a rifle I started loading for, and asked him for a pound to try. He said, "I don't carry it - NOBODY shoots 4320!" and would not give me a reason.

I am also looking for a replacement for 4007. I think one of the new IMR fine grain powders are lookin' good in that burn rate now...

4166 is just a tiny bit faster than 4320 and about identical to 4064

4451 is identical to 4007.

These are said to be very small grain (benchmark small) and have some kinda anti-copper stuff in them.

If they flow throw a measure like benchmark or even 8208, I am sold, cuz this past weekend, I loaded up my last 4064, and swore I would never buy another can of the stuff... I damn near cut my hand, poundin' on the handle of my powder measure to cut the grains

 

[Pappy42]

I'm curious about 4320 and 4166 in 6.5x47 and .308

 

[CJ6]

I'm curious about 4320 and 4166 in 6.5x47 and .308

Compare them on the Hogdon web site.

 

[CatShooter]

Regarding IMR-4166. Occasionally I'll go internet shopping in the evening with a rather large glass of Wild Turkey in my hand. Apparently I did this (again) a while back as two eight pound jugs of H-4166 showed up yesterday. So far I'm not exactly thrilled by the little I've read about the stuff and am also less than delighted by what were described as "small kernels". I guess they're smaller than some but a whole lot bigger than some others. Kind'a like Varget:

Dave, you do much better when shopping on a little Wild Turkey than I do when shopping on a little Makers Mark.

I usually wind up wanting to chew my arm off in the morning so I can go home.

That is very disappointing about the grain size - 4166 is better than 4064, but no way in hell can they be called "small grains"

 

[bdale]

Regarding IMR-4166. Occasionally I'll go internet shopping in the evening with a rather large glass of Wild Turkey in my hand. Apparently I did this (again) a while back as two eight pound jugs of H-4166 showed up yesterday. So far I'm not exactly thrilled by the little I've read about the stuff and am also less than delighted by what were described as "small kernels". I guess they're smaller than some but a whole lot bigger than some others. Kind'a like Varget:

Dave, you do much better when shopping on a little Wild Turkey than I do when shopping on a little Makers Mark.

I usually wind up wanting to chew my arm off in the morning so I can go home.

That is very disappointing about the grain size - 4166 is better than 4064, but no way in hell can they be called "small grains"




Yeah CatShooter, I've woke up with some pretty ugly one's myself, they all look better at closing time :-[

 

[RGRobinett]

Thank you, Dave! Ya just made me toss an anchor overboard - was about to go, "all in" on some of the 4166 . . . not desperate yet, been enjoying great success with the 4007, which appears to have become last weeks news B4 the paper was printed.

Perusing the published DATA reveals that either the IMR4166, 4451, or, both may work well where I have been using the 4007. It doesn't look dramatically larger than the 4007 granules, but , I'll trim the sails a little!. RG

 

[JamesnTN]

I did a quick test in my dasher not long ago with 4320, there may be promise there just have see when I do more testing next spring. I'm also going to be testing the new 4166 powder as well.

 

[ballpowder]

This thread got better responds than I expected. Cool. So is IMR claiming 4166 is a replacement for 4007?

One thing I've noticed is that NOBODY uses ballpowders in their 6MM BR. Bet there is a good reason. I used believe that the best powder for the .22-.100 short PPC was XTerminator. I've shot some of the smallest groups with it but can't seem to figure out when or why it falls apart.


Tim

 

[RGRobinett]

This thread got better responds than I expected. Cool. So is IMR claiming 4166 is a replacement for 4007?

One thing I've noticed is that NOBODY uses ballpowders in their 6MM BR. Bet there is a good reason. I used believe that the best powder for the .22-.100 short PPC was XTerminator. I've shot some of the smallest groups with it but can't seem to figure out when or why it falls apart.


Tim

I don't see where IMR has stated that 4166 is a 'repalcement' for 4007, nor do they state that for the 4451. Perusing their (Hodgdon) web site, and comparing load DATA for the new IMR offerings, with 'standard/old' offerings, such as 4895, 4007, 4350, etc. (where possible, both IMR and Hodgdon), over a variety of capacities, calibers, and bullet weights, it appears that both IMR 4166 and 4451 may prove quite useful.

The Hodgdon site DATA indicate that charge weights, velocities, and pressures, for the IMR 4451 and IMR 4007 are very close - not a 'claim', but rather data comparison. What's missing are the bulk:desnity comparisons for the new numbers. Dave has provided a decent perspective on the granule size - I presumed that the pans displayed equal weight, as opposed to bulk. Perhaps I'm wrong. Dave, please let us know? RG

 

[cmillard]

i use imr 4320 in my 6BR f-open rifle. made the switch from varget when that got hard to find and have not looked back. shooting 105 berger hybrids. i am running 1 half more grains of powder (over my old varget load) and getting more velocity before any signs of pressure.

 

[RGRobinett]

I presumed that the pans displayed equal weight, as opposed to bulk. Perhaps I'm wrong. Dave, please let us know?

Wish I was smart enough to have thought of that Randy but what's in the pan is however much poured out of the jug when I tipped it. Sorry about that.

Not an issue, Dave - that's why, before making a 'full blown' assumption, I asked! ;D
RG