300 RUM 208 Amax data pls

[SneekeeMT]

Could someone chime in with load data for a 300 RUM. 26" barrel, 1/10 twist, CCI LMR primes, 208 grn Hornady Amax with Nosler brass. I've got Retumbo, H4831 and IMR 7828SSC. Anyone have any favorite recipes for this combination? I also have some IMR 4350 if someone likes that but I'm not planning on loading it up in the RUM. I sure wish I could get my hands on RL22, or RL25!
Sorry if this was posted elsewhere.

Thanks for all the help!

Newbie-Dan

 

[SneekeeMT]

So I see that Nosler has published load data worked up for the 210 grn NABLR for the 300 RUM, can some one tell me why there is load data for only three powders: IMR 7828SSC, H1000 and RL25? Boy wouldn't I love to get a hold of those!!
I've got 7828SSC but I've heard that it can be a temp sensitive powder. Was hoping to make retumbo or H4831 my go-to powder since I cant get any h1000 or RL25... any thoughts?
Thanks
Dan

 

[FOTIS]

Cartridge          : .300 Rem Ultra Mag
Bullet             : .308, 210, Nosler AccuBond LR 58317 G7
Useable Case Capaci: 98.272 grain H2O = 6.381 cm³
Cartridge O.A.L. L6: 3.598 inch = 91.39 mm
Barrel Length      : 26.0 inch = 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 64855 psi, or 447 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 !

219 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
---------------------------------  -----------------------------------------------------------------
ADI AR 2218                        102.9     99.3     6.43    3071   100.0    64855   14499   1.304  ! Near Maximum !
Vihtavuori N570                     98.5     94.1     6.10    3027    99.8    64855   14241   1.334  ! Near Maximum !
ReloadSwiss RS 80                  101.3     99.6     6.45    3011   100.0    64855   13868   1.338  ! Near Maximum !
Alliant Reloder-33                  98.9     98.4     6.38    3009    99.9    64855   14005   1.340  ! Near Maximum !
Alliant Reloder-50                 104.4    102.3     6.63    3004    99.8    64855   14295   1.367  ! Near Maximum !
Hodgdon H870                       104.4     97.7     6.33    2995   100.0    64855   13533   1.342  ! Near Maximum !
Norma 217                          104.1     92.9     6.02    2966   100.0    64855   12548   1.354  ! Near Maximum !
Hodgdon Retumbo                    102.0     92.9     6.02    2963   100.0    64855   12234   1.331  ! Near Maximum !
ADI AR 2225                        102.0     92.9     6.02    2963   100.0    64855   12234   1.331  ! Near Maximum !
Vihtavuori N560                     90.9     84.1     5.45    2962   100.0    64855   12685   1.325  ! Near Maximum !
Accurate MAGPRO                     91.0     87.7     5.68    2959   100.0    64855   12906   1.335  ! Near Maximum !
Bofors 12,7mmRA NC1214 Lot20115087 105.2    100.8     6.53    2956    95.4    64855   14261   1.368  ! Near Maximum !
Hodgdon 50BMG                      107.2     98.6     6.39    2953    94.1    64855   13912   1.327  ! Near Maximum !
Norma MRP 2                         97.9     88.7     5.75    2952   100.0    64855   12523   1.344  ! Near Maximum !
Bofors RP30                         97.9     88.7     5.75    2952   100.0    64855   12523   1.344  ! Near Maximum !
IMR 7828                            95.0     83.6     5.42    2950   100.0    64855   12250   1.317  ! Near Maximum !
Vihtavuori 24N41                   101.9     98.3     6.37    2949    97.0    64855   13468   1.320  ! Near Maximum !
PB Clermont PCL 517                 93.2     90.1     5.84    2948   100.0    64855   12312   1.333  ! Near Maximum !
Accurate 8700                      109.1    103.1     6.68    2947    99.8    64855   12956   1.332  ! Near Maximum !
SNPE Vectan SP 12                   93.1     90.0     5.83    2946   100.0    64855   12283   1.333  ! Near Maximum !
Vihtavuori 20N29                   109.0    106.3     6.89    2946    98.8    64855   13482   1.349  ! Near Maximum !
ADI AR 2213                         91.1     83.5     5.41    2942   100.0    64855   12207   1.312  ! Near Maximum !
Hodgdon US 869                     106.8    103.0     6.68    2937    97.1    64855   13470   1.337  ! Near Maximum !
ADI AP 2214                         94.6     89.0     5.77    2936   100.0    64855   11953   1.316  ! Near Maximum !
Hodgdon H1000                       99.5     89.2     5.78    2934   100.0    64855   11919   1.316  ! Near Maximum !
ADI AR 2217                         99.5     89.2     5.78    2934   100.0    64855   11919   1.316  ! Near Maximum !
Raufoss RA15                        91.2     83.5     5.41    2928   100.0    64855   12065   1.332  ! Near Maximum !
Alliant Reloder-22                  91.2     83.5     5.41    2928   100.0    64855   12065   1.332  ! Near Maximum !
Bofors RP5/NP ~approximation        91.2     83.5     5.41    2928   100.0    64855   12065   1.332  ! Near Maximum !
Bofors RP15                         93.7     83.9     5.44    2928   100.0    64855   12087   1.332  ! Near Maximum !
Winchester WXR                      93.7     83.9     5.44    2928   100.0    64855   12087   1.332  ! Near Maximum !
SNPE Vectan SP 13                  108.7    100.7     6.52    2927    99.6    64855   12921   1.347  ! Near Maximum !
Bofors RP5 NT ~approximation        94.8     87.6     5.67    2926   100.0    64855   12320   1.313  ! Near Maximum !
Alliant Reloder-25                  95.8     86.3     5.59    2920   100.0    64855   11660   1.335  ! Near Maximum !
Rottweil R905                       92.7     83.4     5.40    2916   100.0    64855   11979   1.328  ! Near Maximum !
PB Clermont PCL 513/520/9520       110.0    101.8     6.60    2915    99.0    63668   13067   1.356  ! Near Maximum !
Vihtavuori N170                    102.6     92.0     5.96    2895    99.2    64855   12449   1.342  ! Near Maximum !
Ramshot Magnum                      90.9     89.6     5.81    2894   100.0    64855   11450   1.341  ! Near Maximum !
Hodgdon H4831 SC                    90.5     82.9     5.37    2892   100.0    64855   11669   1.318  ! Near Maximum !
Hodgdon H4831                       94.1     82.9     5.37    2892   100.0    64855   11669   1.318  ! Near Maximum !
Lovex D100                          99.8     97.3     6.31    2879    97.4    64855   12439   1.335  ! Near Maximum !
Vihtavuori N160                     94.7     82.2     5.33    2850   100.0    64855   11013   1.322  ! Near Maximum !
Vihtavuori N165                     94.0     84.2     5.46    2842   100.0    64855   10791   1.336  ! Near Maximum !
Accurate 3100                       91.6     83.0     5.38    2826   100.0    64855   10641   1.363  ! Near Maximum !
Lovex S071                          96.8     83.0     5.38    2826   100.0    64855   10641   1.363  ! Near Maximum !
NC A3502 ,test only                110.0     97.5     6.32    2748    86.0    51800   13418   1.441
TLP A 502(RH) ,test only           110.0     97.5     6.32    2698    84.8    50109   12478   1.477

Cartridge          : .300 Rem Ultra Mag
Bullet             : .308, 208, Hornady A-MAX 30712
Useable Case Capaci: 101.726 grain H2O = 6.605 cm³
Cartridge O.A.L. L6: 3.598 inch = 91.39 mm
Barrel Length      : 26.0 inch = 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 64855 psi, or 447 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 !

222 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
---------------------------------  -----------------------------------------------------------------
ADI AR 2218                        101.8    101.7     6.59    3087   100.0    64855   14888   1.301  ! Near Maximum !
Vihtavuori N570                     97.4     96.3     6.24    3041    99.9    64855   14625   1.331  ! Near Maximum !
ReloadSwiss RS 80                  100.2    101.9     6.61    3024   100.0    64855   14233   1.336  ! Near Maximum !
Alliant Reloder-33                  97.8    100.8     6.53    3023    99.9    64855   14377   1.337  ! Near Maximum !
Alliant Reloder-50                 103.2    104.7     6.78    3016    99.8    64855   14671   1.365  ! Near Maximum !
Hodgdon H870                       103.3    100.0     6.48    3008   100.0    64855   13892   1.339  ! Near Maximum !
Norma 217                          102.9     95.0     6.16    2978   100.0    64855   12889   1.351  ! Near Maximum !
Accurate MAGPRO                     90.1     89.8     5.82    2975   100.0    64855   13262   1.330  ! Near Maximum !
ADI AR 2225                        100.9     95.1     6.16    2975   100.0    64855   12566   1.327  ! Near Maximum !
Hodgdon Retumbo                    100.9     95.1     6.16    2975   100.0    64855   12566   1.327  ! Near Maximum !
Bofors 12,7mmRA NC1214 Lot20115087 104.1    103.2     6.69    2972    95.6    64855   14669   1.364  ! Near Maximum !
Hodgdon 50BMG                      106.2    101.1     6.55    2971    94.3    64855   14327   1.323  ! Near Maximum !
Vihtavuori 24N41                   100.8    100.7     6.53    2966    97.2    64855   13861   1.316  ! Near Maximum !
Bofors RP30                         96.9     90.8     5.89    2966   100.0    64855   12867   1.339  ! Near Maximum !
Norma MRP 2                         96.9     90.8     5.89    2966   100.0    64855   12867   1.339  ! Near Maximum !
IMR 7828                            94.0     85.7     5.55    2966   100.0    64855   12598   1.312  ! Near Maximum !
PB Clermont PCL 517                 92.2     92.3     5.98    2962   100.0    64855   12653   1.329  ! Near Maximum !
Accurate 8700                      108.0    105.6     6.85    2962    99.8    64855   13314   1.329  ! Near Maximum !
SNPE Vectan SP 12                   92.1     92.2     5.97    2961   100.0    64855   12624   1.329  ! Near Maximum !
Vihtavuori 20N29                   107.9    108.9     7.05    2960    98.9    64855   13855   1.346  ! Near Maximum !
ADI AR 2213                         90.2     85.5     5.54    2958   100.0    64855   12551   1.307  ! Near Maximum !
Hodgdon US 869                     105.7    105.5     6.84    2952    97.2    64855   13855   1.333  ! Near Maximum !
ADI AP 2214                         93.6     91.1     5.91    2951   100.0    64855   12291   1.311  ! Near Maximum !
ADI AR 2217                         98.5     91.3     5.92    2949   100.0    64855   12256   1.312  ! Near Maximum !
Hodgdon H1000                       98.5     91.3     5.92    2949   100.0    64855   12256   1.312  ! Near Maximum !
PB Clermont PCL 513/520/9520       109.4    104.8     6.79    2946    99.2    64855   13467   1.341  ! Near Maximum !
Alliant Reloder-22                  90.3     85.6     5.55    2943   100.0    64855   12402   1.326  ! Near Maximum !
Raufoss RA15                        90.3     85.6     5.55    2943   100.0    64855   12402   1.326  ! Near Maximum !
Bofors RP5/NP ~approximation        90.3     85.6     5.55    2943   100.0    64855   12402   1.326  ! Near Maximum !
Bofors RP15                         92.7     86.0     5.57    2943   100.0    64855   12425   1.326  ! Near Maximum !
Winchester WXR                      92.7     86.0     5.57    2943   100.0    64855   12425   1.326  ! Near Maximum !
Bofors RP5 NT ~approximation        93.9     89.8     5.82    2942   100.0    64855   12663   1.307  ! Near Maximum !
SNPE Vectan SP 13                  107.6    103.1     6.68    2942    99.6    64855   13277   1.343  ! Near Maximum !
Alliant Reloder-25                  94.7     88.3     5.72    2934   100.0    64855   11982   1.330  ! Near Maximum !
Rottweil R905                       91.8     85.4     5.54    2932   100.0    64855   12320   1.322  ! Near Maximum !
Vihtavuori N170                    101.7     94.3     6.11    2912    99.3    64855   12806   1.336  ! Near Maximum !
Hodgdon H4831                       93.2     85.0     5.51    2909   100.0    64855   12002   1.311  ! Near Maximum !
Lovex D100                          98.9     99.8     6.46    2897    97.5    64855   12809   1.329  ! Near Maximum !
Vihtavuori N160                     93.8     84.3     5.46    2868   100.0    64855   11335   1.314  ! Near Maximum !
Vihtavuori N165                     93.1     86.3     5.59    2858   100.0    64855   11104   1.329  ! Near Maximum !
Accurate 3100                       90.7     85.0     5.51    2842   100.0    64855   10948   1.357  ! Near Maximum !
Lovex S071                          95.9     85.0     5.51    2842   100.0    64855   10948   1.357  ! Near Maximum !
NC A3502 ,test only                110.0    100.9     6.54    2805    87.9    53503   14211   1.412
TLP A 502(RH) ,test only           110.0    100.9     6.54    2750    85.9    51941   13056   1.447
Vihtavuori N32C Tin Star            98.9     46.3     3.00    2159   100.0    64855    5108   1.363  ! Near Maximum !
V1734 7-multiperf ,test only       110.0    100.9     6.54    1984    43.9    26877    7131   1.965
ADI AS 25 BP                       110.0     34.8     2.25    1868   100.0    42708    4023   1.632
IMR TrailBoss                      110.0     34.8     2.25    1868   100.0    42708    4023   1.632

 

[DrMike]

So I see that Nosler has published load data worked up for the 210 grn NABLR for the 300 RUM, can some one tell me why there is load data for only three powders: IMR 7828SSC, H1000 and RL25? Boy wouldn't I love to get a hold of those!!
I've got 7828SSC but I've heard that it can be a temp sensitive powder. Was hoping to make retumbo or H4831 my go-to powder since I cant get any h1000 or RL25... any thoughts?
Thanks
Dan

Dan,

Nosler ballisticians will give you the powders that perform with the greatest efficiency and which offer the greatest chance of a successful load without complications. Hence, they list these three powders in this instance. Other powders will work, but these are the powders that performed best with this particular load. IMR7828SSC should not be particularly temperature sensitive. Either Retumbo or H4831 should work just fine with the 210 grain ABLR.

 

[GaryLC]

I had a savage with the same barrel length and twist as yours. It's favorite load with 208gr Amax bullets was 93gr of Retumbo in RP brass with Fed 215 primers. No pressure signs at all and good case life in that rifle. Probably could have gone a few grains hotter, but accuracy was so good I saw no reason to push it harder.

 

[DrMike]

Consequently, welcome to the forum, SneekeeMT. Glad to have you aboard. I believe you are going to enjoy those who frequent this place.

 

[SneekeeMT]

Thank you all so much for your replies
I have learned so much already from this forum just "lurking".
Thanks DrMike for taking the time to work up that load data!!!
I can't wait to get some loads worked up for this gun.
I'm waiting on a few things to show up in the mail before getting started with a load development.

Whats the best way to select a powder? As mentioned above; I've got several choices to choose from. Should I just load up 3-5 rounds with each powder, keeping everything else (COAL, seating depth, primers) the same to see which is the most accurate? Accuracy is my number one concern, then velocity. The gun will shoots .9 inch groups with factory ammo at 100 yards but the average is more around 1.25". Obviously I want to tighten that up. I recently re-stocked, bedded and replaced the factory trigger and the gun shoots about the same although I can't say for sure as I've only put about 10 rounds down range since the switch.

Just curious what the best process is to select the right powder. Thoughts appreciated!

Dan

 

[DrMike]

Just curious what the best process is to select the right powder. Thoughts appreciated!

Dan

Truthfully, trial and error. Eventually, we gain enough experience that we gravitate to one or two possibilities that will likely prove most satisfactory. In this instance, conferring with what ballisticians have suggested in the various manuals is a good indicator of where we should focus. Nosler indicates which powder gave the lowest standard deviation--that is a good place to start. Hornady and Speer manuals often suggest one or two powders that have given the best results. Sierra suggests both an accuracy load and a hunting load. These are a distillation of years of experience being put into print.

 

[SneekeeMT]

Thanks again DrMike!
Im prettty stoked, i just picked up 2 boxes of Nosler 210 grn 30 cal NABLR..... SCORE!!!
I'm partial to the AccuBond as i have taken many large game with that bullet. Ive been unable to find any 200 grn accubonds for the last 4 months when i started looking for reloading supplies.

 

[SJB358]

Good luck, seems the 200-210's and Retumbo really thrive in the 300 RUM.

Welcome aboard. Please post pictures as you can.

 

[IdahoCTD]

R-33 and H-1000 is the good stuff in my 30-338 Norma Imp., which is about the same capacity as a RUM. When I had my RUM I shot R-25 and Retumbo.

 

[FOTIS]

I choose powders on 95% or better densities. Then choose the most accurate one.

 

[SneekeeMT]

DrMike,
Could you work up load data for the .300 rum with 208 Amax, retumbo, R-P brass, CCi mag primers, COAL = 3.6940

I looked at the above chart you posted and its states 95.1 grn is max load but I'm really skeptical to go even near that high. Berger manual stated max load for the 210 berger vld is 92 gn, I'd like to work up a load using the OCW principle at 5 to 7, .3 grn increments. This would only take me down to about 93 grn which is well above the max listed for the berger which concerns me.

Thanks for the help!

 

[DrMike]

Cartridge          : .300 Rem Ultra Mag
Bullet             : .308, 208, Hornady A-MAX 30712
Useable Case Capaci: 103.536 grain H2O = 6.722 cm³
Cartridge O.A.L. L6: 3.694 inch = 93.83 mm
Barrel Length      : 26.0 inch = 660.4 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 !

56 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                     96.4     97.0     6.28    3030    99.8    64000   14791   1.340  ! Near Maximum !
Alliant Reloder-33                  96.8    101.5     6.58    3012    99.9    64000   14541   1.346  ! Near Maximum !
Alliant Reloder-50                 102.1    105.4     6.83    3005    99.8    64000   14838   1.375  ! Near Maximum !
Hodgdon H870                       102.2    100.7     6.53    2998   100.0    64000   14053   1.349  ! Near Maximum !
Norma 217                          101.8     95.6     6.20    2968   100.0    64000   13038   1.360  ! Near Maximum !
Hodgdon Retumbo                     99.8     95.7     6.20    2965   100.0    64000   12710   1.337  ! Near Maximum !
Hodgdon 50BMG                      105.1    101.9     6.60    2962    94.3    64000   14493   1.331  ! Near Maximum !
Vihtavuori 24N41                    99.9    101.5     6.58    2957    97.2    64000   14024   1.324  ! Near Maximum !
IMR 7828                            93.0     86.2     5.59    2957   100.0    64000   12744   1.320  ! Near Maximum !
Norma MRP 2                         95.8     91.5     5.93    2956   100.0    64000   13013   1.348  ! Near Maximum !
Accurate 8700                      106.9    106.5     6.90    2952    99.8    64000   13478   1.339  ! Near Maximum !
Vihtavuori 20N29                   106.8    109.7     7.11    2951    98.8    64000   14020   1.356  ! Near Maximum !
Hodgdon US 869                     104.6    106.4     6.89    2943    97.2    64000   14017   1.341  ! Near Maximum !
Hodgdon H1000                       97.4     92.0     5.96    2940   100.0    64000   12404   1.320  ! Near Maximum !
Winchester WXR                      91.7     86.6     5.61    2934   100.0    64000   12562   1.335  ! Near Maximum !
Alliant Reloder-25                  93.7     88.9     5.76    2924   100.0    64000   12116   1.339  ! Near Maximum !
Vihtavuori N170                    100.6     95.0     6.16    2903    99.3    64000   12955   1.344  ! Near Maximum !
Hodgdon H4831                       92.3     85.6     5.55    2902   100.0    64000   12142   1.319  ! Near Maximum !
Vihtavuori N160                     92.8     84.9     5.50    2860   100.0    64000   11469   1.321  ! Near Maximum !
Vihtavuori N165                     92.1     87.0     5.63    2851   100.0    64000   11236   1.337  ! Near Maximum !