ORIGINAL: brucelanthier
ORIGINAL: KodiakArcher
They have always grouped fine at that FOC but I've never tried anything radical to get more and see if they get better.
If bow and arrow are set up correctly I doubt a high FOC will help produce better groups. It is my understanding that the high FOC makes the arrow flighta little more forgiving in poor conditions and
really helps with penetration. I know that, from my own experience, my 17% FOC arrows would definitely out penetrate my targets compared to arrows that I have at around 11-12% FOC. I set my deer arrows up with a high FOC for the better penetration it is supposed to provide.
But is that from the high FOC or from a higher total weight? If the two arrows are hitting equally square I can't see how a high FOC is going to make a difference in penetration between two shafts of the same weight. The higher FOC arrow would however have a tendency to hit more square in most circumstances (meaning the imperfect world) since the fletching has better leverage on the tip to keep it in a straight trajectory, and would therefore penetrate better.