Close, but not good enuf. You really need a FFP scope to pull it off.
Would it work on SFP scopes as long as they are cranked to max power? (which for long shots I do)
yep-but you have to prove it at the range. basic process is this. first, find your most accurate load(s). get the chrono out once you have that and get that data. sit in front of yer computer and feed the data into the JBM calculator. plug in the manufacturers specs on their reticle into JBM and compare. start playing around with different zero's until you can map out the ballistics for your load(s) to be as close as possible to that of the reticle ballistics. then, head to the range for a boring but necessary set of trials to prove what JBM is telling you. you might find certain ranges to be more accurate than others. for example, maybe the mapping is "true" from say 200-350, but goes out the window after that. that's where the price of the scope starts to matter. in other words, you start to find out how accurate the BDC is for your scope. YMMV, but it is a true formula...but you have to prove it out at the range.