Bullet FPS Variance Vs. Accuracy: Reloaders!?

I'm fairly big into reloading- Out of my Beretta CX4 Carbine in 9mm I chronoed the 124 (Should be, but come out more like 127ish) grain bullets to be coming out at a good 1475 FPS. Of course not every bullet was traveling at 1475 exactly, there was variance. 1465-1485 was about normal. I consider this to be due to several factors: Not every bullet weighs exactly the same, not every case had the EXACT amount of powder, seating depth variance might have something to do with it, phase of the moon, what have you. Anyhow my question: I've got these statistics (fps figures), How do I make sense of the data, as in, What kind of affect will this variance have on the accuracy of my ammunition (of course, lets assume the gun is in a bench-vise.) Does a 25 fps spread have any difference in where the bullet will land?