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I have a wildcat .17 based on the 22/250 case and could use some load data. How would I go about determining some safe loads to begin with? The only two loads I've been able to find use 4350 and 4320, but so far haven't hit magic. Speed is not my number one consideration, only accuracy.

Is that where these programs come into play? Thanks for any help.

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]
You gave no specifics, so I arbitrarily chose a 25-grain Berger for this example of QuickLOAD. Bear in mind that this is NOT loading data, it is calculated estimates.

Code
Cartridge          : .17/22-250 Rem
Bullet             : .172, 25, Berger M Var #17308
Useable Case Capaci: 40.765 grain H2O = 2.647 cm³
Cartridge O.A.L. L6: 2.310 inch = 58.67 mm
Barrel Length      : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 58500 psi, or 403 MPa
or a maximum loading ratio or filling of 107 %
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
---------------------------------  -----------------------------------------------------------------
Alliant Reloder-17                  82.9     32.7     2.12    3874   100.0    58500   10746   1.042  
Alliant Reloder-26                  90.4     36.5     2.37    3867   100.0    58500   11505   1.080  
IMR 7828 SSC                        92.6     35.7     2.32    3866    97.4    58500   11578   1.045  
IMR 7828                            97.9     35.7     2.32    3866    97.4    58500   11578   1.045  
Vihtavuori N560                     93.5     35.9     2.33    3863    96.9    58500   11818   1.057  
IMR 4895                            79.3     29.8     1.93    3862   100.0    58500   10504   1.029  
Norma MRP                           91.7     36.0     2.33    3862    99.3    58500   11616   1.066  
Alliant Reloder-16                  88.8     32.5     2.11    3857   100.0    58500   10698   1.048  
Alliant Reloder-25                  98.8     36.9     2.39    3854   100.0    58500   11167   1.062  
Hodgdon Retumbo                    104.9     39.6     2.57    3852    99.9    58500   11484   1.070  
Hodgdon H4895                       77.6     29.2     1.89    3852   100.0    58500   10260   1.021  
Alliant Reloder-15                  80.1     30.1     1.95    3851   100.0    58500   10457   1.029  
Hodgdon H414                        82.7     32.9     2.13    3851    99.2    58500   11043   1.042  
Winchester 760                      82.7     32.9     2.13    3851    99.2    58500   11043   1.042  
Alliant Reloder-22                  93.9     35.7     2.31    3843    98.5    58500   11450   1.060  
Norma 203B                          80.4     30.2     1.96    3842   100.0    58500   10343   1.031  
Lovex D060                          65.1     22.9     1.48    3841   100.0    58500    9212   0.965  
Accurate 5744                       63.6     22.9     1.48    3841   100.0    58500    9212   0.965  
Vihtavuori N530                     75.4     28.5     1.85    3839   100.0    58500    9957   1.012  
Winchester WXR                      96.3     35.8     2.32    3838    98.4    58500   11435   1.061  
Norma URP                           87.3     32.4     2.10    3837   100.0    58500   10641   1.045  
IMR 3031                            79.6     27.9     1.81    3835   100.0    58500    9697   1.023  
IMR 4320                            82.0     30.3     1.96    3835   100.0    58500   10095   1.015  
Winchester 748                      73.4     29.7     1.92    3832   100.0    58500    9949   1.026  
Vihtavuori N550                     84.8     32.5     2.11    3831   100.0    58500   10701   1.048  
Hodgdon CFE223                      74.8     31.3     2.03    3831   100.0    58500   10246   1.034  
Alliant Reloder-19                  91.5     34.4     2.23    3829    98.3    58500   11079   1.043  
Ramshot Hunter                      87.3     33.9     2.20    3828    99.7    58500   10853   1.048  
Accurate 4350                       86.4     32.5     2.10    3826   100.0    58500   10666   1.065  
Ramshot Big Game                    79.1     31.7     2.05    3826   100.0    58500   10260   1.036  
Accurate MAGPRO                     93.5     37.3     2.42    3824    95.7    58500   11703   1.072  
IMR 4064                            83.5     29.6     1.92    3824   100.0    58500   10021   1.016  
Ramshot Wild Boar                   76.1     30.6     1.98    3823   100.0    58500   10142   1.026  
Hodgdon H380                        81.2     31.2     2.02    3822    99.9    58500   10454   1.039  
IMR 8208 XBR                        76.9     28.9     1.87    3822   100.0    58500    9819   1.012  
Hodgdon H322                        75.2     27.4     1.78    3821   100.0    58500    9502   1.006  
Hodgdon VARGET                      83.0     30.2     1.96    3820   100.0    58500   10081   1.014  
Norma 204                           87.1     33.8     2.19    3820    98.1    58500   10901   1.038  
Hodgdon H1000                      102.1     38.0     2.46    3819    98.0    58500   11133   1.050  
Accurate 2200                       70.5     26.9     1.74    3817   100.0    58500    9448   0.994  
Alliant Reloder-23                  96.0     35.3     2.29    3812   100.0    58500   10511   1.067  
IMR 4166 Enduron                    84.5     30.4     1.97    3812    99.2    58500   10294   1.012  
IMR 4451 Enduron                    84.8     31.5     2.04    3812    99.1    58500   10425   1.018  
Hodgdon BL-C2                       75.4     30.9     2.00    3810   100.0    58500   10060   1.041  
Norma 201                           79.1     29.1     1.88    3809   100.0    58500    9855   1.029  
Ramshot TAC                         76.5     31.0     2.01    3808    99.8    58500   10262   1.023  
Norma 203 old                       81.2     30.9     2.00    3808   100.0    58500   10098   1.051  
IMR 4831                            91.4     32.9     2.13    3806   100.0    58500   10387   1.056  
Hodgdon H4198                       72.3     25.5     1.65    3805   100.0    58500    9049   0.975  
Lovex S062                          81.2     29.7     1.92    3804   100.0    58500    9826   1.032  
IMR 4007 SSC                        83.1     31.7     2.05    3802    98.9    58500   10481   1.032  
Lovex S060                          79.2     29.0     1.88    3801   100.0    58500    9685   1.005  
Lovex S070                          87.4     32.5     2.10    3801    99.3    58500   10554   1.047  
Winchester 296                      55.6     22.4     1.45    3800   100.0    58500    8932   0.982  
IMR 4350                            88.1     32.9     2.13    3798    99.0    58500   10458   1.032  
If I was looking at loading for this one using that bullet, I'd probably opt for Retumbo or H1000 and Re23 looks like a good candidate, but I lean toward temp tolerant powders. Note that powder consumption is damn near 100% for everything, likely owing to the bore size. Looks like the slower the burn, the better. Maybe a handful of grass clippings and a couple of match heads?
wink

Try <saubier.com> for your wildcat recipe. They have pages of small-bore threads and often there is a member who knows your cartridge well who will speak up. You may have to become a member, but that shouldn't scare anybody.
I may need to invest in one of these programs.
Originally Posted by Fireball2
I may need to invest in one of these programs.

Agreed. I've never completed one from scratch but have played around a lot with altering parent cartridges. You need QuickDesign and QuickLoad together, esp. if you're building proprietary cases. Enormously useful.
Originally Posted by Fireball2
I may need to invest in one of these programs.



It's a great tool and a fun toy. When you start fooling around with it, you'll probably get to playing " what if" and you'll spend hours fiddling. It's easy to lose track of time once you start doing that. It will lead you to insights you never pondered. Buy it.
Go to http://www.woodchuckden.com if there is any data out there he will have it He IS the 17 and 20cal guy
Pic reminds me of the .22 Eargensplittenloudenboomer.

If it doesn't have a name I recommend .17 Neddledick, or just ND for short..

laugh
Reminds me of the guy on the right:

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