Powder for 300 Weatherby with 180 grain bullets

[Dr. Vette]

Unfortunately IMR 7828SSC is not available and probably will not be for the foreseeable future. While I have enough for myself I'm at the point with a friend that he's out of his 2 pounds of 7828, and now out of previously loaded ammo. I've loaded for many 300 Wby rifles over the years, thousands of rounds, and to date only used the 7828SSC. But, I can get a load with it very quickly.

Looking at the burn chart, IMR powders, Reloder powders and Norma powders are not available. Vihtavuori 165/565/170 are close.
I considered H1000 as it's easy to get, but you really have to stuff it in to match the 7828 velocities.

Has anyone used the Vihtavuori powders in the 300 Wby, or can you suggest via Quickload where to start? The Vihtavuori website itself ignores the 300 Wby with the 5XX series of powders.

Thanks for any suggestions!

 

[gerry]

H 4831sc or the Vhitavouri powders you mentioned.

 

[DrMike]

Cartridge          : .300 Weath. Mag.
Bullet             : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 87.035 grain H2O = 5.651 cm³
Cartridge O.A.L. L6: 3.560 inch = 90.42 mm
Barrel Length      : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 64000 psi, or 441 MPa
or a maximum loading ratio or filling of 110 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

20 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
Powder type          Filling/Loading Ratio  Charge    Charge   Vel. Prop.Burnt P max  P muzz  B_Time
                                      %     Grains    Gramm   fps     %       psi     psi    ms
---------------------------------  -----------------------------------------------------------------
Vihtavuori N570 *C                 109.4     92.6     6.00    3227    96.6    64000   15938   1.130  ! Near Maximum !
Vihtavuori N568 *C*T               109.0     91.2     5.91    3190    98.3    64000   15114   1.137  ! Near Maximum !
Alliant Reloder-26 *C               97.4     84.0     5.44    3173   100.0    64000   13770   1.149  ! Near Maximum !
Alliant Reloder-33 *C              110.0     95.7     6.20    3169    96.4    61302   15576   1.154  ! Near Maximum !
Norma MRP 2 *C                     108.5     87.1     5.64    3165    99.6    64000   14435   1.145  ! Near Maximum !
Vihtavuori N560 *C                 100.3     82.2     5.33    3161    99.0    64000   14446   1.135  ! Near Maximum !
Alliant Reloder-25 *C              106.4     84.9     5.50    3160   100.0    64000   13421   1.132  ! Near Maximum !
Norma MRP *C                        98.5     82.4     5.34    3159   100.0    64000   13960   1.142  ! Near Maximum !
IMR 7828                           104.8     81.7     5.30    3153    99.3    64000   13997   1.124  ! Near Maximum !
IMR 7828 SSC                        99.2     81.7     5.30    3153    99.3    64000   13997   1.124  ! Near Maximum !
Accurate MAGPRO                    100.6     85.8     5.56    3152    98.1    64000   14561   1.142  ! Near Maximum !
Vihtavuori N565 *C*T               104.9     86.5     5.60    3138    99.1    64000   14270   1.155  ! Near Maximum !
Hodgdon H1000 *T                   109.4     86.8     5.63    3135    99.5    64000   13653   1.120  ! Near Maximum !
Alliant Reloder-22 *C              100.6     81.6     5.29    3134    99.8    64000   13832   1.141  ! Near Maximum !
Winchester WXR                     103.3     82.0     5.31    3134    99.8    64000   13854   1.141  ! Near Maximum !
Ramshot Magnum                     100.3     87.7     5.68    3114   100.0    64000   13194   1.137  ! Near Maximum !
Hodgdon Retumbo                    110.0     88.7     5.75    3099   100.0    57303   14044   1.183  ! Near Maximum !
Alliant Reloder-16 *C *T            93.3     72.9     4.72    3096   100.0    64000   12359   1.132  ! Near Maximum !
Alliant Reloder-19 *C               97.7     78.4     5.08    3094    99.8    64000   13214   1.135  ! Near Maximum !
Ramshot LRT                        110.0     95.2     6.17    3090    89.9    60315   14871   1.154  ! Near Maximum !
Alliant Reloder-23 *C *T           102.2     80.2     5.20    3084   100.0    64000   12310   1.150  ! Near Maximum !
Ramshot Hunter                      93.3     77.3     5.01    3081   100.0    64000   12690   1.143  ! Near Maximum !
Vihtavuori N555 *C*T                99.1     78.0     5.05    3081   100.0    64000   12500   1.167  ! Near Maximum !
Hodgdon H4831 SC *T                 99.0     80.3     5.20    3074    98.8    64000   13116   1.132  ! Near Maximum !
Hodgdon H4831 *T                   102.9     80.3     5.20    3074    98.8    64000   13116   1.132  ! Near Maximum !
Norma 204 *C                        92.8     76.9     4.98    3073    99.7    64000   12904   1.135  ! Near Maximum !
Vihtavuori N550 *C*T                90.3     74.0     4.80    3058   100.0    64000   12305   1.152  ! Near Maximum !
Hodgdon LVR                         90.6     72.7     4.71    3057   100.0    64000   12156   1.143  ! Near Maximum !
Accurate 4350                       91.9     73.8     4.78    3051   100.0    64000   12116   1.166  ! Near Maximum !
Winchester Supreme 780              96.4     81.6     5.28    3047    99.7    64000   12568   1.141  ! Near Maximum !
Vihtavuori 24N41 *C                110.0     94.0     6.09    3046    89.8    60641   14040   1.154  ! Near Maximum !
IMR 4955 Enduron *C*T              100.4     78.3     5.08    3041    98.9    64000   12717   1.134  ! Near Maximum !
Vihtavuori N165 *C                 103.0     81.7     5.30    3040    99.9    64000   12321   1.146  ! Near Maximum !
IMR 4831                            97.4     74.8     4.85    3038   100.0    64000   11900   1.157  ! Near Maximum !
Accurate 3100                      100.7     80.8     5.24    3035   100.0    64000   12168   1.171  ! Near Maximum !
Shooters World SW4350               92.9     73.7     4.78    3031   100.0    64000   12151   1.153  ! Near Maximum !
Shooters World BMG                 108.9     94.0     6.09    3028    91.5    64000   13213   1.142  ! Near Maximum !
Vihtavuori N160 *C                  90.3     74.0     4.79    3018   100.0    64000   11559   1.148  ! Near Maximum !
Hodgdon Hybrid 100V                 95.3     74.0     4.79    3010   100.0    64000   11241   1.150  ! Near Maximum !

 

[salmonchaser]

Not quite apples to apples but I’ve had good luck with VV560 and Rl 19 in my 300 HH.

 

[Dr. Vette]

The 560 looks good in Dr Mike's list above. I have some RL19 but it belongs to another friend, and also not easily available.

Thanks @DrMike for the QL information. That does help.

 

[Ralt71]

Looking at the burn chart, IMR powders, Reloder powders and Norma powders are not available. Vihtavuori 165/565/170 are close.

I have a 300 bee to do some load development on at some point here in the near future for my FIL. Something to keep in mind when loading with Viht, the powders that start with a "1" are supposedly temp stable, where powders starting with a "5" are not. It's been my experience the 5's are faster, but at the cost of losing that in the colder months. I really like their line up and love how clean they shoot.

 

[SJB358]

What about H1000 or Ramshot Grand. Both are very available and have worked well in a few Wbys I’ve loaded.

 

[jimbires]

looking at Dr Mikes chart , I'd be looking at ; RL26 , N560 , MRP , MAG PRO . good case fills , and good velocity .

 

[Dr. Vette]

looking at Dr Mikes chart , I'd be looking at ; RL26 , N560 , MRP , MAG PRO . good case fills , and good velocity .

RL26 and MRP = nonexistent, just like 7828SSC.

What about H1000 or Ramshot Grand. Both are very available and have worked well in a few Wbys I’ve loaded.

109% fill for the H1000. Great powder but that's more than I want to smash in there if alternates are available.
I use it in my 7mm Wbys a lot.

 

[Alaska]

Unfortunately IMR 7828SSC is not available and probably will not be for the foreseeable future. While I have enough for myself I'm at the point with a friend that he's out of his 2 pounds of 7828, and now out of previously loaded ammo. I've loaded for many 300 Wby rifles over the years, thousands of rounds, and to date only used the 7828SSC. But, I can get a load with it very quickly.

Looking at the burn chart, IMR powders, Reloder powders and Norma powders are not available. Vihtavuori 165/565/170 are close.
I considered H1000 as it's easy to get, but you really have to stuff it in to match the 7828 velocities.

Has anyone used the Vihtavuori powders in the 300 Wby, or can you suggest via Quickload where to start? The Vihtavuori website itself ignores the 300 Wby with the 5XX series of powders.

Thanks for any suggestions!

Ramshot Grand

 

[jimbires]

grand must not have made it into quickload yet ? I don't see it on Dr Mikes chart , and he's usually up to date on the latest quickload .