Comparative Powder "Burning Rates"

The chart below lists powders currently and commonly available in the US. They are listed in order from the fastest burning to the slowest burning. 

WARNING! WARNING! WARNING! WARNING! WARNING! 
The actual burning rate and position on this chart can be drastically altered by many factors including case size,
bullet weight, expansion ratio, operating pressures, etc.   Industry tests have shown that a powder's location on
this list can shift by 5 - 6 positions or more  depending on conditions.  This data was typical under the test
conditions it was developed under but may not be true under your circumstances.

Do not attempt to make powder changes
or determine a load based upon this data.

Data extracted from Western Powders burnrate chart, dtd 2013-08-06. You can visit Western Powder's web site at: http://www.ramshot.com.

ACCURATE RAMSHOT ALLIANT HODGDON IMR WINCHESTER VIHTAVOIURI NORMA ADI TUBAL
NITRO 100F             R1    
NITRO 100           N-310     Ba10
  COMPETITION   TITEWAD            
          WST     AS-30N  
      CLAYS            
    BULLSEYE              
  ZIP   HP-38   231 N312   AP-50N  
SOLO   e3   IMR-700X          
A-No.2   RED DOT TITE GROUP            
    PROMO   TRAIL BOSS          
    CLAY DOT              
    AMERICAN SELECT INTERNATIONAL   WSL N-320     AS24
  SILHOUTTE GREEN DOT             As
  True Blue     PB WAP        
A-No.5           N-330   AS-50N A1
    20/28              
    UNIQUE UNIVERSAL SR-7625       AP-70N Ba9
    POWER PISTOL HS-6   540 N-340     Ao
                   
    HERCO   SR-4756   N-3N37     Sp8
A-No.7   BLUE DOT   IMR-800X   N-350   AP-100 Sp2
    PRO REACH       N-3N38      
    STEEL HS-7   571 N-105     Sp3
A-No.9   410     630   123   Ba6
    2400              
A-4100 ENFORCER   LIL GUN SR-4759   N-110      
    PWRPRO 300-MP H110   296        
      H4227 IMR-4227       AR-2205  
A-5744                  
A-1680         680        
            N-120      
      H4198 IMR-4198     200 AR-2207 2000
LT-32               AR-BMk1  
A-2200   REL-7              
      H-332            
A-2015               AR-2219  
      BENCHMARK IMR-3031          
A-2230 X-TERMINATOR REL-10x         201 AR-BMk2 3000
            N-130      
A-2460                 Sp10
      BLC(2)   748 N-133      
A-2495 TAC RL-12 H-335       202 AR-2206H Sp9
      H-4895            
A-2520     VARGET IMR-4895       AR-2208 Sp7
                   
        IMR-4064   N-530      
            N-135      
A-4064   REL-15   IMR-4320          
              203B    
    PWR PRO
2000- LR
H-380     N-140     5000
  BIG GAME                
A-2700     H-414     N-540      
                   
    REL-17   IMR-4350 760 N-150   AR-2209 7000
A-4350     H-4350            
    PWR PRO
3000- LR
      N-550 204    
  HUNTER                
            N-160      
A-3100   REL-19 H-4831 IMR-4831 WXR   205 AR-2213SC  
      H-4831sc     N-560      
          WMR   MRP   Sp12
    REL-22              
    PWR PRO
4000-MR
      N-165 MRP2   8000
        IMR-7828       AR-2217  
MAGPRO                  
  MAGNUM   H-1000         AR-2225  
    REL-25 RETUMBO            
            N-170      
      H-870   870        
    REL-50              
      H-50BMG     24N41   AR-2218  
            20N29     Sp13

Temperature Effects on Powder

Effect Of Temperature On Various Powders
  (0F) (70F) (125F) Changes
Powder Pressure
(kpsi)
Velocity
(f/s)
Pressure
(kpsi)
Velocity
(f/s)
Pressure
(kpsi)
Velocity
(f/s)
D P
Cold
D V
Cold
D P
Hot
D V
Hot
Accurate 2520 50.5 2781 49.9 2805 52.6 2844 +600 -24 +2700 +39
IMR 4064 51.3 2651 51.1 2686 49.7 2697 +200 -35 -1400 +11
Reloader 15 48.7 2665 50.3 2715 47.3 2705 -2100 -50 -3000 -10
Win 748 47.3 2655 50.2 2724 51.1 2769 -2900 -69 +900 +45
Varget 51.2 2778 51.1 2771 51.5 2779 +100 +7 -440 +8
Vit N140 47.5 2629 49.6 2665 51.0 2679 -2100 -36 +1400 +14
Vit N555 48.8 2778 50.1 2808 51.5 2834 -1300 -30 +1400 +26

Data based upon the 308 Win. cartridge using all the same lot number Winchester cases, Winchester Large Rifle Primers and Sierra 168 gr. BTHP Match bullets. Note that many ball powders can exhibit unexpected extreme changes in pressure below 35 degrees F and above 105 degrees F, rising pressures 10,000 psi or more at elevated temperatures. Be careful at the temperature extremes!  In addition do not use ball powders at very low load densities.

Data courtesy of Varget.


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Disclaimer

As far as I know all the information presented above is correct and I have attempted to insure that it is. However, I am not responsible for any errors, omissions, or damages resulting from the use or misuse of this information, nor for your doing something stupid with it. (Don't you hate these disclaimers? So do I, but there are people out there who refuse to be responsible for their own actions and who will sue anybody to make a buck.)

Updated 2013-11-03