325 WSM Reload Data

[JEM]

Hello
Starting to reload for a 325 WSM model 70 with a 24" barrel, Could use a little help if you would. Like to use 200 Grain Nosler Partician, IMR 4350 with, Win. Brass and primer. COAL of 2.860. Was thinking of useing 64.5 and 65 Grains of 4350 and starting from there, I Don't know the Max load for that barrel or Max FPS with that combination. Nosler data in there manual uses a 26" barrel. Any thoughts or advise? Rifle has a nice smooth trigger I'm impressed.
Thank you

 

[DrMike]

First off, welcome aboard. We're also glad to see the forum expanding.

To answer your question, barrel length will have no effect on chamber pressure. Therefore, the maximum charge will be identical regardless of barrel length. Velocities will be between 50 and 70 fps lower in your 24" barrel than in the 26" barrel used to generate the Nosler data. I would start at 61.0 grains and work up in 2 grain increments to a maximum charge of 65 grains for your initial tests. One of those will stand out for accuracy, giving you guidance on where to look next.

 

[gerry]

Welcome as well. I only used H 4350 and H 4831 sc the short while I had a 325 WSM so can't help with IMR 4350. The 325 WSM is an excellent cartridge.

 

[DrMike]

With the 200 grain Partition, I use Big Game. I've also had excellent success with RL19 and H4350. The 325 is a hammer on elk and moose.

 

[muleman]

I've used IMR4350 in the 325wsm with good results. I shoot the 200gr NAB over 66gr, Win case and Fed 215 primers. It is less than MOA and scoots at just under 2900fps out of my 24" Kimber. It is an over book load but safe in my gun. My COAL is a little longer than standard. IMR 4350 was the most accurate powder I tried. Start low and work up to be safe.

Scott

 

[SJB358]

Welcome to the forum! Glad to have you aboard.

Man, your amongst good company with that 325WSM. Seems to be a huge following of them here.

Cartridge          : .325 WSM
Bullet             : .323, 200, Nosler PART SP 35277
Useable Case Capaci: 72.066 grain H2O = 4.679 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length      : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 63000 psi, or 434 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 !

7 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
---------------------------------  -----------------------------------------------------------------
Norma MRP                          108.4     75.1     4.87    3031    99.5    63000   11505   1.134  ! Near Maximum !
Vihtavuori N560                    110.0     74.7     4.84    3012    97.1    62944   11652   1.134  ! Near Maximum !
ReloadSwiss RS 60                   98.3     68.5     4.44    3000   100.0    63000   10216   1.131  ! Near Maximum !
ReloadSwiss RS 70                  101.1     71.5     4.64    2999   100.0    63000   10711   1.130  ! Near Maximum !
Accurate MAGPRO                    110.0     77.7     5.03    2992    95.5    62289   11639   1.143  ! Near Maximum !
IMR 7828 SSC                       108.2     73.8     4.78    2987    97.4    63000   11230   1.128  ! Near Maximum !
Bofors RP5/NP ~approximation       110.0     73.9     4.79    2985    98.6    62237   11246   1.144  ! Near Maximum !
Alliant Reloder-22                 110.0     73.9     4.79    2985    98.6    62237   11246   1.144  ! Near Maximum !
Raufoss RA15                       110.0     73.9     4.79    2985    98.6    62237   11246   1.144  ! Near Maximum !
Alliant Reloder-17                  97.3     67.8     4.39    2978   100.0    63000   10152   1.138  ! Near Maximum !
Elcho 17                            97.3     67.8     4.39    2978   100.0    63000   10152   1.138  ! Near Maximum !
ADI AR 2213                        109.0     73.2     4.74    2970    97.2    63000   11119   1.129  ! Near Maximum !
Ramshot Magnum                     109.4     79.2     5.13    2962    99.0    63000   10724   1.132  ! Near Maximum !
PB Clermont PCL 511                 98.8     69.9     4.53    2947    99.8    63000   10444   1.147  ! Near Maximum !
Ramshot Hunter                     102.1     70.0     4.54    2946    99.8    63000   10429   1.147  ! Near Maximum !
Alliant Reloder-19                 106.6     70.8     4.59    2945    98.5    63000   10705   1.141  ! Near Maximum !
Somchem S365                       104.3     68.9     4.46    2945   100.0    63000    9682   1.152  ! Near Maximum !
ReloadSwiss RS 62                   99.5     69.2     4.49    2943   100.0    63000   10084   1.158  ! Near Maximum !
ADI AR 2209                        105.9     70.0     4.53    2943    98.4    63000   10619   1.135  ! Near Maximum !
Winchester 760                      96.4     67.7     4.39    2940    99.5    63000   10432   1.150  ! Near Maximum !
Hodgdon H414                        96.4     67.7     4.39    2940    99.5    63000   10432   1.150  ! Near Maximum !
Bofors RP14 ~approximation         107.4     71.3     4.62    2938    98.5    63000   10624   1.142  ! Near Maximum !
Vihtavuori N550                     98.7     67.0     4.34    2925   100.0    63000   10116   1.159  ! Near Maximum !
Norma URP                          101.6     66.8     4.33    2925   100.0    63000    9981   1.154  ! Near Maximum !
Bofors RP19 ~approximation         101.6     66.8     4.33    2925   100.0    63000    9978   1.154  ! Near Maximum !
Accurate 4350                      100.9     67.0     4.34    2922   100.0    63000    9943   1.170  ! Near Maximum !
SNPE Vectan SP 12                  110.0     78.0     5.05    2922    96.9    57962   11229   1.170  ! Near Maximum !
Norma 204                          101.0     69.3     4.49    2917    98.2    63000   10399   1.144  ! Near Maximum !
Bofors RP4 ~approximation          104.3     69.3     4.49    2917    98.2    63000   10399   1.144  ! Near Maximum !
Raufoss RA4                        104.3     69.3     4.49    2917    98.2    63000   10399   1.144  ! Near Maximum !
PB Clermont PCL 517                110.0     78.0     5.05    2916    96.7    57629   11229   1.173  ! Near Maximum !
Rottweil R905                      110.0     72.5     4.70    2911    96.5    60126   10775   1.165  ! Near Maximum !
Hodgdon H4831 SC                   107.6     72.2     4.68    2910    96.6    63000   10458   1.140  ! Near Maximum !
Somchem S385                       106.9     71.8     4.65    2909    99.1    63000   10240   1.161  ! Near Maximum !
IMR 4831                           106.6     67.8     4.40    2907   100.0    63000    9759   1.163  ! Near Maximum !
Winchester WXR                     110.0     72.3     4.68    2899    97.6    56531   11027   1.195  ! Near Maximum !
Bofors RP15                        110.0     72.3     4.68    2899    97.6    56531   11027   1.195  ! Near Maximum !
Bofors RP4 NT ~approximation       101.8     68.7     4.45    2897    99.3    63000   10056   1.156  ! Near Maximum !
Accurate 3100                      110.0     73.1     4.74    2893    99.8    62392    9972   1.176  ! Near Maximum !
Winchester Supreme 780             104.8     73.4     4.76    2893    98.3    63000   10127   1.147  ! Near Maximum !
Hodgdon Hybrid 100V                104.3     67.0     4.34    2885   100.0    63000    9171   1.154  ! Near Maximum !
Rottweil R904                      105.0     68.8     4.46    2883    97.4    63000   10097   1.149  ! Near Maximum !
Lovex S070                         101.0     66.4     4.30    2881    99.5    63000    9890   1.166  ! Near Maximum !
Hodgdon H380                        93.7     63.6     4.12    2878   100.0    63000    9622   1.166  ! Near Maximum !
Norma 203 old                       94.1     63.2     4.10    2870   100.0    63000    9253   1.176  ! Near Maximum !
Bofors RP3                          94.1     63.2     4.10    2870   100.0    63000    9253   1.176  ! Near Maximum !
Rottweil R903                       96.2     63.2     4.10    2865   100.0    63000    9171   1.176  ! Near Maximum !
ADI AP 2214                        110.0     75.9     4.92    2862    96.1    57067   10711   1.180  ! Near Maximum !
Somchem S355                        96.3     62.6     4.06    2860   100.0    63000    9188   1.171  ! Near Maximum !
IMR 7828                           110.0     71.0     4.60    2859    95.7    54666   10859   1.203
Lovex S065                          99.8     64.9     4.20    2858    99.9    63000    9527   1.168  ! Near Maximum !
Rottweil R907                       98.5     64.2     4.16    2857    99.1    63000    9700   1.163  ! Near Maximum !
Bofors RP7                          98.5     64.2     4.16    2857    99.1    63000    9700   1.163  ! Near Maximum !
Hodgdon H4831                      110.0     71.0     4.60    2856    95.8    59207   10298   1.172  ! Near Maximum !
IMR 4007 SSC                        95.4     64.3     4.17    2856    99.1    63000    9694   1.163  ! Near Maximum !

 

[JEM]

Thanks for all the information, will start low and work up. My son lives in AK and left the rifle with me to work a load up for him. Plans on using it on Caribou and Moose. I enjoy reloading, shooting and hunting so I don't mind this project at all. Looks like this is a forum that has a large number of knowledgeable people and a person can learn a lot if you want to.

 

[SJB358]

We all love to reload, shoot and hunt here! Your in great company. Watch out for Dr. Mike though. He has a heckuva power of persuasion to make other rifles follow you home! Ha!

 

[DrMike]

Be nice, Scotty; no picking on the old guy. I've never been able to persuade you to pick up a 325 WSM ... yet. However, hope springs eternal.

 

[SJB358]

Be nice, Scotty; no picking on the old guy. I've never been able to persuade you to pick up a 325 WSM ... yet. However, hope springs eternal.

It is not for lack of trying on your part or lack of created want you devised!

I won't leave Wild Gene out though, he does apply a certain amount of pressure as well.. :grin:

 

[wildgene]

...iff'n the 200gr. AccuBond doesn't work for you, I've had good luck w/ the 220gr. Sierra GameKing/ 63grs. RL-17 on 5 elk. Pretty accurate, very good BC, & terminal performance...

 

[wisconsinteacher]

If I were to get into the WSM game, I would take a hard look at the 325. It looks like a great round.

 

[SJB358]

If I were to get into the WSM game, I would take a hard look at the 325. It looks like a great round.

I really wished I would have went 325WSM over the 300 the first time. It's okay, gives me another shot at the 325 in the future.

 

[DrMike]

The 325 is a surprisingly well-behaved round--easy to load for and packing a pretty good wallop.