Current Powder Burn Rate Chart

[FatBuddah]

Does anyone have a link to a current chart with the new powders out?
Cheers

 

[46and2]

No! I've been searching.
Hodgdon "newest " doesn't even have Reloder 33.

 

[Ron Gorski]

Does anyone have a link to a current chart with the new powders out?
Cheers

There is an up to date chart in the new Sierra Manual.

 

[Jammer Six]

And in the Hornady manual.

 

[Liven The Dream]

Shooter World Powder has a one to down load ?

 

[Bill K]

This is one that I found is pretty much up to date.

 

[GSS]

This isView attachment 1117046 one that I found is pretty much up to date.

Thanks for sharing.
Is Alliant AR Comp missing or am I just not seeing it?

 

[Pawnee Bill]

Thanks for sharing.
Is Alliant AR Comp missing or am I just not seeing it?

Don't see it either. Just discovered AR Comp, works well. Don't know where it fits though.

 

[shoot4fun]

That chart has several of the newer Alliant powders missing. No AR-Comp, RL16, RL26 among others.

 

[KMart]

The only place I have seen AR Comp listed is on the Shooters World chart. But no 16,23, or 26

 

[GSS]

Don't see it either. Just discovered AR Comp, works well. Don't know where it fits though.

Definitely faster than RL15 (my old faithful before going to AR Comp) as I get the same velocities ( 20" Service Rifle ) with a full grain less powder.

RL15 measured well but the AR Comp meters even better.

Seems to burn cooler as well.
I have used it in the last 2 barrels and I am getting slower throat erosion in both. Could just be the pot luck the barrel manf get in the steel they purchase to make barrels from. More time will tell and I plan on sticking with it.

George

 

[hogpatrol]

Most charts including the one posted, are five or more years behind the times and are lacking a lot of the newer powders like RL 26,33 and the Enduron line. Missing a couple Norma powders also. Quickload has all of these in their database.

 

[GSS]

Most charts including the one posted, are five or more years behind the times and are lacking a lot of the newer powders like RL 26,33 and the Enduron line. Missing a couple Norma powders also. Quickload has all of these in their database.

Would Quickload software allow you to make a chart of all the powder burn rates like the obsolete on posted above that would include all the missing powders?

If yes would you post it here?

 

[hogpatrol]

Would Quickload software allow you to make a chart of all the powder burn rates like the obsolete on posted above that would include all the missing powders?

If yes would you post it here?

AFAIK, They only list powders for entry in to load calculations, no burn rate chart.

 

[6ShotsOr5?]

That chart has several of the newer Alliant powders missing. No AR-Comp, RL16, RL26 among others.

Missing RL-23 and RL-33 also. Missing Vihta Vuori N565 also. I appreciate Hodgdon providing the resource but it takes a lot longer for competitor products to show up on the chart.

 

[Kurz]

Something to bear in mind while trying to use a Burn Rate Chart:

There are some powders which are very similar in burn rate yet they are listed vertically as if one is faster or slower than the others. So which one is which?

Burn rate charts never take into consideration faster or slower lots of powders. We've all seen our own loading using a powder then switch lots and get one that's faster or slower.

Realistically a burn rate chart is merely a loose reference not anything absolute.

 

[dolek]

I think it is much more than a "loose reference" . Published data by the powder companies is much safer than internet speculation .

 

[Ned Ludd]

A burn rate chart is typically most useful for getting finding the "right neighborhood" for a given cartridge/bullet combination. Finding the correct specific street address is then up to the reloader. More often than not, a variety of powders within a certain burn rate range would work for a given load, and we usually select the powder we wish to try using additional criteria such as single base versus double base, kernel size/shape, how clean it burns, cost, etc, etc, etc. Most manufacturers provide sufficient information regarding the cartridges for which they consider a specific powder to be optimal that it's pretty easy to figure out the approximate burn rate range without a chart.

 

[Straightshooter1]

When comparing burn rates between one powder and another, since I use QuickLoad with the most recent update for comparing one load configuration with another, I simply compare the calculated Chamber Pressure curve for a given charge weight. And, it does provide info, like Burning Rate Factor (a coefficient during beginning of combustion of the outer layer of granules) along with other burning factors. As mentioned, this kind of thing really gives a decent "in the neighborhood" information since one batch of powder and be different from the same powder of a different batch. The newest QuickLoad update has all the powder 's mentioned in this thread.

 

[corsair4360]

I find those charts a useful reference, but not a loading manual. The biggest challenge is that reloading manuals have in some cases quite different data. For instance 270 WSM data or 7mm Mag data in one case shows lightest loads are maximum in another manual. My experience is that loading manuals are a guide, and we as reloaders are responsible for being careful and cautious experimenters. I am first and foremost in all cases looking for an accurate load.