I don't regard Greenhill Formula as an absolute. It is generally a reliable predictor of bullet behavior by length in a given twist, but it has poetic flights of fancy on occasion.
Example #1--NEI #20, .257" 100 grain cone point. Looks like an RG-4 that shrunk in the wash. At 1700 FPS, my Savage 99's 1-14" twist isn't supposed to handle it.......but it does. VERY well. Same bullet at 1500-1600 FPS from my Marlin 94 CL--same 1-14" twist--print like #4 buckshot does at similar ranges.
Example #2--NEI #6, 72 grain .224" round flatnose. Greenhill says "YES" in 1-9" 223 twist........rifles said "H--L NO" with malice aforethought from 1600-2200 FPS, cartwheeling them downrange with a delightful buzz like Africanized honey bees in the Mojave Desert. Same rifles love RCBS 22-55-SP (and NEI #4) like patriots love liberty. I just work here.
All you can do is make sure they fit well, and go to the range with them. View Greenhill like a weather forecast.......an educated guess.