Primal Rights, an online long-range store, has posted up an excellent primer on the differences between first and second focal plane scopes. Many shooters take this knowledge for granted, but as an experienced one, I still found value in the the refresher course.
They break it down barney style on how the reticle scales to the target and the various advantages and disadvantages of both systems. Primal’s conclusions?
The number one situation where FFP reticles show their strengths is in tactical shooting, and what I mean by that is situations where you have limited time and one shot, or if you are lucky you might get a follow-up shot. For most of us this means running through a precision rifle competition. At these events you are presented with targets of various size at known or unknown distances in virtually every position imaginable. Shots can be from 11yds to well over 1000yds and you may only have a matter of seconds to find and engage targets. In these circumstances are where optics with FFP reticles really shine. You may not have time to run the turrets at a stage, so you will rely heavily on the reticle to apply your correct hold. You will often be shooting multiple directions, so your wind hold will move from left to right and dialing the windage turret will take too much time. I could go on for another full page about all the situations I can think of at a match where a FFP reticle would be superior to SFP, but I think you get the point.
I have not yet encountered a situation where a FFP reticle was not able to get the job done. I get my fair share of paper punching in as well and again I have not encountered an instance where I wished I had a SFP reticle. A FFP reticle is kind of like a concealed carry weapon. I’d rather have it and not need it, than need it and not have it! The most important thing for you is to understand what you are using. Not everyone can afford the latest and greatest FFP rifle scope. Do not let that discourage you from shooting. There are new models being offered in FFP configuration by most major optics manufacturers at ever decreasing price points.
What are your thoughts? SFP enough for you and/or do you prefer FFP?