450 bushmaster in rugger no 1 load data

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murph

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Hello, I have recently purchased a 450 BM in a Ruger no 1. I am hoping to to play with some heavier loads but the only load data I can find is in my Lyman 50th edition. There are I think 5 offerings in this book, but correct me if I am wrong, all of these loads are suitable for an ar platform. I was hoping to hop things up a bit for the no 1. I have a BM in a Ruger ranch as well, but primarily looking to play with the no 1.
Any idea where I can find some reputable load data?
Thanks
 
I loaded for a No 1 in a wildcat caliber (375 H&H AI). Using a chrono and watching the brass I worked up to where I was comfortable. I wasn’t too concerned about the rifle as long as I went slow.
 
here's a Quickload list of 450 Bushmaster 250gr FTX loaded to 55,000 psi (SAAMI max for 450BM is 39k psi)

Code: 
Cartridge          : .450 Bushmaster
Bullet             : .452, 250, Hornady FTX 45201
Useable Case Capaci: 45.375 grain H2O = 2.946 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length      : 20.0 inch = 508.0 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 55000 psi, or 379 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 !

Powder type          Filling/Loading Ratio  Charge    Charge   Vel. Prop.Burnt P max  P muzz  B_Time
                                      %     Grains    Gramm   fps     %       psi     psi    ms
---------------------------------  -----------------------------------------------------------------
Winchester 296                      92.3     41.5     2.69    2405    98.4    55000    4043   0.978  !DANGEROUS LOAD-DO NOT USE!
Hodgdon Lil'Gun                     93.0     40.4     2.62    2384   100.0    55000    3516   0.976  !DANGEROUS LOAD-DO NOT USE!
Hodgdon H110                        93.1     41.8     2.71    2354    99.6    55000    3733   0.991  !DANGEROUS LOAD-DO NOT USE!
AA 5744                            100.1     40.0     2.59    2341    94.7    55000    3910   0.991  !DANGEROUS LOAD-DO NOT USE!
IMR 4227                           108.0     41.3     2.68    2307    96.1    55000    3610   0.988  !DANGEROUS LOAD-DO NOT USE!
AA 1680                            104.5     45.6     2.96    2295    89.4    55000    3754   0.992  !DANGEROUS LOAD-DO NOT USE!
Alliant RL7                        110.0     44.5     2.88    2237    91.7    47994    3728   1.039  !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4198                      110.0     43.2     2.80    2167    85.2    48472    3407   1.050  !DANGEROUS LOAD-DO NOT USE!
Hodgdon H335                       110.0     50.2     3.25    2149    79.8    43700    3684   1.076  !DANGEROUS LOAD-DO NOT USE!
IMR 4198                           110.0     41.3     2.67    2147    89.8    42152    3476   1.079  !DANGEROUS LOAD-DO NOT USE!
Alliant RL10x                      110.0     43.4     2.81    2103    86.3    37194    3639   1.121  ! Near Maximum !
Hodgdon H322                       110.0     44.7     2.89    2033    78.5    36775    3395   1.140  ! Near Maximum !
Winchester 748                     110.0     49.5     3.21    2007    71.3    37418    3343   1.150  ! Near Maximum !
 
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