Moderator:
I have no idea how to categorize this query. If it should be elsewhere, please put it where you think it should go.
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I run Macintosh OS 9.2.2. Under physical duress, I'll run OS X 10.3.9. I have searched for ballistics software compatible with my operating system that yields pressure data. I have identified nothing.
I have a USRAC/Winchester M1886 rifle that I want to have converted to 475 Turnbull, 50 Express (modernized 50-110), or 48-90 (.475-caliber on 45-90 brass). Handloading data having pressures acceptable to me -- between 32,000 and 40,000 CUP -- is not available.
1. What software can calculate reliable pressure data for these wildcat cartridges?
2. How close to reality are pressure data generated from the software?
What exactly does software require to do the calculation?