I use JBM ballistic calculator to calculate data for my charts. I print out 5 or 6 different charts, each one for different temperatures or elevations etc. I transfer the info to an Excel spreadsheet and print out a copy to tape to my stock. During cooler months I use one particular chart, during the summer I swap it out for a chart with higher temps. I can always tote along spare charts in a pocket if I expect conditions to change. However, I mostly only shoot this 223 out to 550 or less, so slight temp variations are not a big deal.
Here's my chart from Excel.
The first column shows the distance in yards. The second column shows a modified MOA, more user friendly in my opinion. My scope is calibrated in 1/8th inch clicks at 100 yards. If my chart says 1.2 MOA, that means 10 clicks. 1.7 MOA is 15 clicks. 2 MOA is 16 clicks, etc. Works quicker for me rather than some decimal point that you have to convert in your head anyways. The third column is the number of clicks. The fourth column is inches of drop so I can visualize if I want to. Fifth column is windage clicks @10mph.
I "laminate" it with clear wide packing tape on top to protect it from moisture. On the bottom I use two-sided "permanent" tape. It sticks to my stocks very well, never had one peel off yet. I place it under the scope so I can see it better without having to move the rifle much or at all. Don't put your chart on your buttstock or you'll have to completely remove your head and look down while turning your rifle, a waste of movement.
I also tape the same chart to the underside of my rangefinder. After ranging a critter, I simply turn the rangefinder to view the underside. The chart is right there in my hands and I read off the MOA I need to dial in. That way I don't even have to look at the chart on my stock. You have to range long targets anyways, so why not just put the chart on your rangefinder? Make it easy for yourself.
I also make an abreviated round chart for the inside of the rear scope cap for quick and dirty adjustments. Again, all charts are "laminated" on the top with clear wide packaging tape, and attached on the bottom with double sided permanent scotch type tape. Never had one even start to peel up yet. It is removable, it just takes some work, and it won't damage your paint job either.