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Max Online: 16728 @ 03/25/12 08:51 AM
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#5983012 - 10/18/15 06:42 PM Loading a 20" Barrel which powder??
Buzzsaw Offline
THF Trophy Hunter

Registered: 06/29/11
Posts: 5023
Loc: Frisco, Texas
Looking at 6.5X55, .260, 20" barrel hunting rifle. probably 140gr bullets, which powders would get the most powder burned up in 20", in another words which powders should I look at, accuracy and velocity being the same?
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"I ain't here for a long time, I'm here for a good time"
King George Straight



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#5983059 - 10/18/15 07:04 PM Re: Loading a 20" Barrel which powder?? [Re: Buzzsaw]
RiverRider Online   content
THF Trophy Hunter

Registered: 11/11/07
Posts: 6193
Loc: Wise Co.
Unless you're concerned with muzzle flash/blast, use the same powder you'd choose for a 24-inch barrel.

Even with very large small arms cartridges using the slowest powders, your propellant will have burned by the time the bullet moves very far at all. Whatever is going to burn will have burned long before the bullet exits the muzzle.
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Originally Posted By: Cleric
God I am hating caliber threads more and more

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#5983074 - 10/18/15 07:14 PM Re: Loading a 20" Barrel which powder?? [Re: Buzzsaw]
RiverRider Online   content
THF Trophy Hunter

Registered: 11/11/07
Posts: 6193
Loc: Wise Co.
Code:
Cartridge          : 6.5 x 55 Swedish
Bullet             : .264, 140, Nosler AccuBond 39457
Useable Case Capaci: 51.841 grain H2O = 3.366 cm³
Cartridge O.A.L. L6: 3.150 inch = 80.01 mm
Barrel Length      : 23.5 inch = 596.9 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 55114 psi, or 380 MPa
or a maximum loading ratio or filling of 115 %
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 !

3 loads produced a Loading Ratio below user-defined minimum of 80%. 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                    111.0     55.9     3.62    2890    93.2    55114   13552   1.217  
Hodgdon Retumbo                    114.5     55.0     3.56    2878    99.8    55114   12548   1.213  
ADI AR 2225                        114.5     55.0     3.56    2878    99.8    55114   12548   1.213  
Alliant Reloder-33                 111.3     58.5     3.79    2875    93.5    55114   13403   1.218  
Alliant Reloder-25                 107.5     51.1     3.31    2857   100.0    55114   11833   1.219  
Norma MRP                           99.6     49.7     3.22    2854    99.4    55114   12221   1.229  
ADI AR 2218                        113.8     57.9     3.75    2845    91.8    55114   13564   1.211  
Vihtavuori N560                    101.2     49.4     3.20    2840    96.9    55114   12374   1.226  
Accurate MAGPRO                    101.6     51.6     3.35    2832    95.5    55114   12432   1.232  
IMR 7828                           105.5     49.0     3.17    2826    97.3    55114   11991   1.217  
IMR 7828 SSC                        99.8     49.0     3.17    2826    97.3    55114   11991   1.217  
Alliant Reloder-22                 101.4     49.0     3.17    2821    98.5    55114   11958   1.232  
Winchester WXR                     104.1     49.2     3.19    2820    98.4    55114   11967   1.233  
ADI AR 2213                        100.7     48.6     3.15    2810    97.2    55114   11856   1.216  
Ramshot Magnum                     101.6     52.9     3.43    2808    99.0    55114   11541   1.223  
ADI AP 2214                        104.8     52.0     3.37    2803    97.4    55114   11767   1.214  
Norma 217                          115.0     54.1     3.51    2801    98.6    49011   12718   1.290  
ADI AR 2217                        110.1     52.1     3.37    2801    97.4    55114   11731   1.215  
Hodgdon H1000                      110.1     52.1     3.37    2801    97.4    55114   11731   1.215  
Alliant Reloder-17                  88.8     44.5     2.89    2799   100.0    55114   10731   1.232  
Hodgdon H870                       115.0     56.7     3.68    2786    93.7    50050   12904   1.275  
ADI AR 2209                         97.3     46.3     3.00    2777    98.3    55114   11269   1.223  
Alliant Reloder-19                  97.8     46.7     3.03    2774    98.4    55114   11326   1.232  
Ramshot Hunter                      93.4     46.1     2.99    2772    99.8    55114   11029   1.239  
Winchester 760                      88.1     44.5     2.89    2768    99.4    55114   11027   1.241  
Hodgdon H414                        88.1     44.5     2.89    2768    99.4    55114   11027   1.241  
Alliant Reloder-50                 115.0     59.4     3.85    2756    90.4    47422   13212   1.317  
Norma URP                           92.8     43.9     2.84    2753   100.0    55114   10552   1.247  
Vihtavuori N550                     90.1     44.0     2.85    2752   100.0    55114   10671   1.251  
Norma 204                           92.7     45.8     2.97    2751    98.2    55114   11021   1.234  
Hodgdon H4831 SC                    99.2     47.9     3.11    2751    96.5    55114   11140   1.229  
Hodgdon H4831                      103.2     47.9     3.11    2751    96.5    55114   11140   1.229  
Accurate 4350                       92.3     44.1     2.86    2750   100.0    55114   10550   1.266  
Vihtavuori 24N41                   112.2     57.1     3.70    2749    85.8    55114   11801   1.224  
IMR 4831                            97.5     44.6     2.89    2737   100.0    55114   10338   1.256  
Accurate 3100                      101.5     48.5     3.14    2736    99.8    55114   10651   1.268  
Winchester Supreme 780              96.8     48.8     3.16    2734    98.2    55114   10805   1.237  
Vihtavuori N170                    113.1     53.5     3.47    2732    91.5    55114   11392   1.249  
Vihtavuori N165                    103.4     48.9     3.17    2730    98.8    55114   10634   1.242  
Hodgdon Hybrid 100V                 95.4     44.1     2.86    2717   100.0    55114    9737   1.246  
Hodgdon H380                        85.6     41.8     2.71    2710   100.0    55114   10156   1.257  
Vihtavuori N160                    103.1     47.2     3.06    2708    97.2    55114   10537   1.239  
_________________________


Originally Posted By: Cleric
God I am hating caliber threads more and more

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#5983075 - 10/18/15 07:15 PM Re: Loading a 20" Barrel which powder?? [Re: Buzzsaw]
RiverRider Online   content
THF Trophy Hunter

Registered: 11/11/07
Posts: 6193
Loc: Wise Co.
Notice how many powders do not achieve 100% consumption. I had barrel length set at 23.5 inches.
_________________________


Originally Posted By: Cleric
God I am hating caliber threads more and more

Top
#5983085 - 10/18/15 07:22 PM Re: Loading a 20" Barrel which powder?? [Re: Buzzsaw]
RiverRider Online   content
THF Trophy Hunter

Registered: 11/11/07
Posts: 6193
Loc: Wise Co.
With a 20-inch barrel. I haven't checked closely and do not intend to, but you won't see any significant shift in position for velocity for any of the powders listed in the results. There may be one or two, but they won't be significant.


Code:
Cartridge          : 6.5 x 55 Swedish
Bullet             : .264, 140, Nosler AccuBond 39457
Useable Case Capaci: 51.841 grain H2O = 3.366 cm³
Cartridge O.A.L. L6: 3.150 inch = 80.01 mm
Barrel Length      : 20.0 inch = 508.0 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 55114 psi, or 380 MPa
or a maximum loading ratio or filling of 115 %
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 !

3 loads produced a Loading Ratio below user-defined minimum of 80%. 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                    111.0     55.9     3.62    2761    91.0    55114   16078   1.114  
Hodgdon Retumbo                    114.5     55.0     3.56    2756    99.0    55114   15199   1.110  
ADI AR 2225                        114.5     55.0     3.56    2756    99.0    55114   15199   1.110  
Alliant Reloder-33                 111.3     58.5     3.79    2746    91.3    55114   15891   1.114  
Alliant Reloder-25                 107.5     51.1     3.31    2741    99.8    55114   14415   1.115  
Norma MRP                           99.6     49.7     3.22    2735    98.6    55114   14741   1.124  
Vihtavuori N560                    101.2     49.4     3.20    2720    95.4    55114   14795   1.121  
ADI AR 2218                        113.8     57.9     3.75    2714    89.1    55114   15975   1.106  
Accurate MAGPRO                    101.6     51.6     3.35    2710    93.7    55114   14830   1.127  
IMR 7828                           105.5     49.0     3.17    2708    95.9    55114   14374   1.112  
IMR 7828 SSC                        99.8     49.0     3.17    2708    95.9    55114   14374   1.112  
Alliant Reloder-22                 101.4     49.0     3.17    2703    97.4    55114   14359   1.126  
Winchester WXR                     104.1     49.2     3.19    2702    97.2    55114   14362   1.127  
ADI AR 2213                        100.7     48.6     3.15    2693    95.7    55114   14180   1.110  
Ramshot Magnum                     101.6     52.9     3.43    2693    98.0    55114   13928   1.117  
Alliant Reloder-17                  88.8     44.5     2.89    2692   100.0    55114   13081   1.126  
ADI AP 2214                        104.8     52.0     3.37    2687    95.9    55114   14104   1.108  
ADI AR 2217                        110.1     52.1     3.37    2684    95.9    55114   14062   1.108  
Hodgdon H1000                      110.1     52.1     3.37    2684    95.9    55114   14062   1.108  
Norma 217                          115.0     54.1     3.51    2674    97.1    49011   15274   1.183  
ADI AR 2209                         97.3     46.3     3.00    2664    97.2    55114   13525   1.116  
Ramshot Hunter                      93.4     46.1     2.99    2661    99.2    55114   13335   1.132  
Alliant Reloder-19                  97.8     46.7     3.03    2661    97.2    55114   13590   1.125  
Hodgdon H870                       115.0     56.7     3.68    2658    91.4    50050   15280   1.168  
Winchester 760                      88.1     44.5     2.89    2656    98.6    55114   13318   1.134  
Hodgdon H414                        88.1     44.5     2.89    2656    98.6    55114   13318   1.134  
Norma URP                           92.8     43.9     2.84    2645    99.9    55114   12840   1.139  
Vihtavuori N550                     90.1     44.0     2.85    2643    99.8    55114   12954   1.143  
Accurate 4350                       92.3     44.1     2.86    2642    99.9    55114   12873   1.158  
Norma 204                           92.7     45.8     2.97    2640    97.0    55114   13223   1.125  
Hodgdon H4831                      103.2     47.9     3.11    2639    95.0    55114   13315   1.121  
Hodgdon H4831 SC                    99.2     47.9     3.11    2639    95.0    55114   13315   1.121  
Vihtavuori 24N41                   112.2     57.1     3.70    2631    83.4    55114   13911   1.115  
IMR 4831                            97.5     44.6     2.89    2631    99.9    55114   12605   1.148  
Accurate 3100                      101.5     48.5     3.14    2627    99.2    55114   12918   1.159  
Winchester Supreme 780              96.8     48.8     3.16    2624    97.1    55114   12971   1.128  
Alliant Reloder-50                 115.0     59.4     3.85    2624    87.8    47422   15557   1.208  
Vihtavuori N165                    103.4     48.9     3.17    2622    97.7    55114   12818   1.133  
Vihtavuori N170                    113.1     53.5     3.47    2617    89.5    55114   13522   1.140  
Hodgdon Hybrid 100V                 95.4     44.1     2.86    2617   100.0    55114   11901   1.137  
Hodgdon H380                        85.6     41.8     2.71    2605    99.7    55114   12328   1.147  
Vihtavuori N160                    103.1     47.2     3.06    2600    95.9    55114   12632   1.129  
Norma 203 old                       85.8     41.5     2.69    2598   100.0    55114   11889   1.160  
IMR 4007 SSC                        87.4     42.4     2.75    2588    98.2    55114   12337   1.141  
Accurate 4064                       85.1     39.8     2.58    2560   100.0    55114   11118   1.182 
_________________________


Originally Posted By: Cleric
God I am hating caliber threads more and more

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#5983212 - 10/18/15 08:36 PM Re: Loading a 20" Barrel which powder?? [Re: Buzzsaw]
FiremanJG Offline
THF Celebrity

Registered: 12/16/08
Posts: 17893
Loc: Wolfe City, TX
20" barrel same as a 24" barrel.

H-4350
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