Thread: Short 7mm08?

Hey guys. Looking at buying my first rifle, and have settled on 7mm08 calibre. Considering a second hand Tikka, or new Howa. I have seen a fair few second hand rifles with the barrel cut down to 16.5 or 17" with a suppressor. I understand that you lose a certain amount of fps per inch, but does that make that much of a difference? I don't expect to shooting any further than 400m on the outside, and expect to engage in the 100-200m range. If the animal is further than that I will narrow the distance.
Cheers for your advice.