I called Alliant asking about Reloder 16

[Tripplet918]

I called Alliant asking about Reloder 16. I havent seen the stuff on shelves in over a year.

They said they never stopped producing. That production remains the same, and that demand is just outpacing supply.

That sucks. It doesnt look like I'm gonna see that powder soon.

There is no relief in sight. I'm down to my last 8 pound jug

[pennstater]

"last 8 pound jug"? You're better off than most. Count your blessings.

MLC

[BIGOX]

I've seen it recently at a shop i frequent. On the high end on price and I think all in 1lb bottles. Where are you located? I

[Capybara]

Reloder 16 is a good medium rifle cartridge powder. It looks as if you'll have to switch to something that's available? Hunting? Target? Calibers?

[TomReloaded]

Try 4350 instead.

[Capybara]

Try 4350 instead.

Powder Valley has Accurate 4350 in stock as we speak.

[JackEllis]

Without knowing what caliber you're using if for...

.30-06 requires somewhere around 55-60 grains per cartridge. Let's call it 60, so you could load 115 cartridges per pound. Close to 1k rounds in that 8 lb jug.

[BrassCase]

The unicorn is 15.5 TS, not 16.

[shamrock12]

Both 1 lb and 8 lb are in stock as of now

https://www.brownells.com/reloading/powder/rifle-powder/reloder-16-smokeless-powder-prod98659.aspx

[QED]

Try 4350 instead.

4350 is ambiguous. There's H4350, A4350, and IMR4350. H4350 is probably the least temperature sensitive and is very popular with people shooting Creedmoor cartridges. H4350 is super accurate in my 6mm Creedmoor.

[ar15barrels]

4350 is ambiguous. There's H4350, A4350, and IMR4350.

And all of them are so close to each other that you can quickly work up a load with any of them when you can't get the specific one you want.

[QED]

And all of them are so close to each other that you can quickly work up a load with any of them when you can't get the specific one you want.

True but that doesn't take into account the temperature sensitivity thing. H4350 is the most popular powder for the PRS crowd. I find it to be pretty accurate. YMMV

[ar15barrels]

True but that doesn't take into account the temperature sensitivity thing.
H4350 is the most popular powder for the PRS crowd.
I find it to be pretty accurate. YMMV

People make a big stink about temperature sensitivity but in reality, we don't see big enough temperature changes throughout a day for it to really matter.
Even with how temperature sensitive one powder or another may be, you still have to adjust dope throughout the day just from the air density changes.
So it realistically matters little if there is also 5-10fps difference in change throughout the day from the powder when you already have a 40fps change in H4350.
The difference in dope between really temperature sensitive powder and not really temperature sensitive is smaller than the air density dope changes throughout a day to the point that when I ran IMR4350, i didn't really see a difference in my dope vs H4350.

Comparing H4350 against IMR4350 against AA4350 in Quickload, I get the following results:

Powder Temp Velocity
H4350 70 2738fps
H4350 110 2783fps
40 degree delta 45fps

IMR4350 70 2743fps
IMR4350 110 2788fps
40 degree delta 45fps

AA4350 70 2743fps
AA4350 110 2789fps
40 degree delta 46fps

IMR and Hodgdon compared at the exact same charge weight while I had to drop 0.8gr with Accurate.
This is with a 142gr SMK in a 6.5 Creedmoor with a 26" barrel.

So how about those huge temperature sensitivity differences?
Just because one powder is considered temperature insensetive does not automatically mean that other powders are more temperature sensetive.
Hodgdon just has better marketing.

Now maybe this mythical difference in sensetivity shows up more at higher pressures so lets push up to 65,000 psi at 110 degrees and then drop the temperature back down to 70 degrees for our next comparison:

H4350 70 2815fps
H4350 110 2858fps
40 degree delta 38fps

IMR4350 70 2814fps
IMR4350 110 2857fps
40 degree delta 38fps

AA4350 70 2841fps
AA4350 110 2884fps
40 degree delta 43fps

I looks like the difference in temperature sensitivity gets smaller with higher pressures.
Of course other powers will have bigger swings right?
I was just comparing the 4350's since that's what we are talking about.

Here is Winchester 760 (a ball powder because ball powders are notably more temperature sensitive than stick powders):

W760 70 2737fps
W760 110 2786fps
40 degree delta 49fps

So there's our big temperature sensitivity.
Over a 40 degree temperature shift, W760 has a 10fps bigger FPS deviation than H4350.

[QED]

People make a big stink about temperature sensitivity but in reality, we don't see big enough temperature changes throughout a day for it to really matter.
Even with how temperature sensitive one powder or another may be, you still have to adjust dope throughout the day just from the air density changes.
So it realistically matters little if there is also 5-10fps difference in change throughout the day from the powder when you already have a 40fps change in H4350.
The difference in dope between really temperature sensitive powder and not really temperature sensitive is smaller than the air density dope changes throughout a day to the point that when I ran IMR4350, i didn't really see a difference in my dope vs H4350.

Comparing H4350 against IMR4350 against AA4350 in Quickload, I get the following results:

Powder Temp Velocity
H4350 70 2738fps
H4350 110 2783fps
40 degree delta 45fps

IMR4350 70 2743fps
IMR4350 110 2788fps
40 degree delta 45fps

AA4350 70 2743fps
AA4350 110 2789fps
40 degree delta 46fps

IMR and Hodgdon compared at the exact same charge weight while I had to drop 0.8gr with Accurate.
This is with a 142gr SMK in a 6.5 Creedmoor with a 26" barrel.

So how about those huge temperature sensitivity differences?
Just because one powder is considered temperature insensetive does not automatically mean that other powders are more temperature sensetive.
Hodgdon just has better marketing.

Now maybe this mythical difference in sensetivity shows up more at higher pressures so lets push up to 65,000 psi at 110 degrees and then drop the temperature back down to 70 degrees for our next comparison:

H4350 70 2815fps
H4350 110 2858fps
40 degree delta 38fps

IMR4350 70 2814fps
IMR4350 110 2857fps
40 degree delta 38fps

AA4350 70 2841fps
AA4350 110 2884fps
40 degree delta 43fps

I looks like the difference in temperature sensitivity gets smaller with higher pressures.
Of course other powers will have bigger swings right?
I was just comparing the 4350's since that's what we are talking about.

Here is Winchester 760 (a ball powder because ball powders are notably more temperature sensitive than stick powders):

W760 70 2737fps
W760 110 2786fps
40 degree delta 49fps

So there's our big temperature sensitivity.
Over a 40 degree temperature shift, W760 has a 10fps bigger FPS deviation than H4350.

Kudos to you for doing diligent computer modeling (sincerely) which does need empirical confirmation however. The Ineos bike racing team has a philosophy of accumulating "marginal gains" in which the aggregation of all small advantages results in real improvements and they and their predecessor Sky realized great results in the TdF as a result. In the end, using recent high level competition data in conjunction with the theory of revealed preferences (cf Samuelson 1938), PRS competitors much prefer H4350, so for PRS use cases, the market has spoken. I get it, use what you can get, but I choose H4350 when it is an option and I currently have an adequate stash. As I mentioned to you in a different thread, you do you and I'll do me.

[TomReloaded]

PRS is cool and all, but it was a rl16 thread. I was already recommending substitutes for an unavailable powder.

A good, workable powder in stock beats a better powder you can't find. Sometimes the in stock one surprises you anyway.