4350 Powders

[Frank in the Laurels]

H-4350 !! You'll loose a little velocity but it's great powder....I cleaned off my bench years ago of all those other kinds and use it now almost exclusively from 25/06 to .338WM....the best " if you could only have one powder"....

 

[dgkypke]

H-4350 !! You'll loose a little velocity but it's great powder....I cleaned off my bench years ago of all those other kinds and use it now almost exclusively from 25/06 to .338WM....the best " if you could only have one powder"....

That's exactly what I want to hear!

 

[Frank in the Laurels]

H-4350, super clean, no temperature variation to speak of, great accuracy, for whatever reason all my rifles just seem to shoot the "H" better than all the others...I like having just one powder for almost all....Varget for my Dashers & V-133 for my ppc's...everything else eats H-4350...all my short mags shine with it, the big belted cases loose a 100fps but their accuracy makes up for that, any cartridge based on the /06 case also love it....I honestly can't think of any other powder that covers so much ground....can't go wrong with it for the "one and only" class...

 

[GrayCreed]

Other 4350 powders out there:

Reloader16
IMR 4451(very close to H4350)
Vitavori N565
Vitavori N570


Also you could consider powders in the 7828/4831 area to hit most of these cartridges

 

[Sage70]

This may not be what the group wants to hear but on any given day Reloader 17 is more likely to shoot a tighter group in 30-06 size cases than either H4350, IMR 4350 or Reloader 16. The long range target shooters have talked down R17 but it is a good hunting powder. I have tried all four powder in 25-06, 270 Winchester, 30-06, 280 Remington and 338-06 and if you sight-in a rifle at a temperature of 50 degrees the velocity swing and trajectory with R17 is not very much between 25 degrees and 75 degrees. Normal hunting ranges are less than 350 yards and Reloader 17 is my preferred powder for the 30-06 and it produces higher velocity and tighter groups than either H4350 or IMR 4350. I currently use R22 for 25-06 and 270 Winchester, R19 for 280 Remington, R17 for 30-06 and R15 for 338-06. I am a hunter and not a target shooter and although I have H4350 and Reloader 16 I do not use them for hunting.

 

[P7M13]

I think you better look at RL17 again, all the old Alliant powders are about 1.5 fps per 1 deg. Its why I quite using 17 long ago. The new alliance are way better. I think I've seen IMR at .67 which isn't really that bad in the IMR line.

@L.Sherm , can you please share a link to that excel table / graphic? I looked all over Accurate Shooter and did not find your specific PNG file. I'm curious what the "Hornady" column means. Thank you.

 

[L.Sherm]

.

 

[L.Sherm]

Here is more recent one.

 

[Coyote Shadow Tracker]

Here is more recent one.

L.Sherm
Could you please explain for other reloaders what exactly is the correlation of powder and the numbers that are listed in these attachments?

Thanks
Len

 

[L.Sherm]

L.Sherm
Could you please explain for other reloaders what exactly is the correlation of powder and the numbers that are listed in these attachments?

Thanks
Len

Since RL 17 was brought up lets use it for example. 1.42 is the fps it will change per deg. difference.
Let's say you developed a load at 40 deg and it warmed to 60 deg or went to another state and hunted.
1.42x20=28.4 fps difference

 

[Old Rooster]

I have always heard IMR4350 is not temp stable and that may well be true but back in1977 I killed my largest bull elk 7x6 and sold the antlers that paid for my trip from Louisiana to Colorado.
I shot that elk at 275 yards at -27 degree's with a partition using IMR4350.It shot as well at -27 as it did at 72 degree's.Maybe the velocity was a bit slower but that elk dropped like a rock.
I was told :"you got away with one time but may not the next time".
Maybe so.I am waiting for H4350 to come back again so I can stock up just to make sure.
When you spend money to hunt out of state you don't need extra worry.H 4350 Similar to IMR4350 but not the same load data.

 

[Sage70]

Since RL 17 was brought up lets use it for example. 1.42 is the fps it will change per deg. difference.
Let's say you developed a load at 40 deg and it warmed to 60 deg or went to another state and hunted.
1.42x20=28.4 fps difference

I like your example and completely agree with your logic. But it seems to me that some calibers and cartridges are more affected by temperature change than others. And, temperature studies can be tainted toward a certain manufacturer as Hodgdon comes out really sweet in the study listed above. I have been using Hodgdon powders for many years but I do not consider them superior to Alliant powders.

I have had great accuracy in my 30-06 and 338-06 rifles using Reloader 17 and both are larger caliber rifles. Nitrochemie, the manufacturer of Reloader 17 considers Reloader 17 temperature sensitivity to be in the .50 fps range. A temperature study of Reloader 17 by Rheinmetall a German munitions manufacturer using a 8 X 68 rifle with 70.4 grains of R17 with a temperature range of minus 22 degrees F to plus 122 degrees F showed a average increase in velocity of .32 fps per degree of temperature change.

 

[Old Rooster]

Having access to this much knowledge is a gold mine!

 

[L.Sherm]

I like your example and completely agree with your logic. But it seems to me that some calibers and cartridges are more affected by temperature change than others. And, temperature studies can be tainted toward a certain manufacturer as Hodgdon comes out really sweet in the study listed above. I have been using Hodgdon powders for many years but I do not consider them superior to Alliant powders.

I have had great accuracy in my 30-06 and 338-06 rifles using Reloader 17 and both are larger caliber rifles. Nitrochemie, the manufacturer of Reloader 17 considers Reloader 17 temperature sensitivity to be in the .50 fps range. A temperature study of Reloader 17 by Rheinmetall a German munitions manufacturer using a 8 X 68 rifle with 70.4 grains of R17 with a temperature range of minus 22 degrees F to plus 122 degrees F showed a average increase in velocity of .32 fps per degree of temperature change.

I'm not doudting the accuracy of RL17 just the stability, Alliant wouldnt be coming out with new lines of powder if they weren't better especially in stability.
Basically 15.5, 16, 23 and 26 are replacing 15,17,19, 22 and 25.
In the early days of RL17 I used it in my first 6.5x300wsm and I found it as unstable as Magpro, you think the manufacturer of the early Alliant powders would really admit it was unstable, if you wanna use it then go ahead these days theres better stable powders that are proven and the new Alliant line fit that category.