I want to start by saying this just an observation and by far from any form of sophisticated scientific test. In my other thread I was discussing building a heavy high FOC arrow for my Sept elk hunt. So I ended up building a 26.5" CE Maxima 350 with 100g insert and 100g tip giving me a total weight of around 490g (don't remember exact) and around 16% FOC. I started shooting these arrows in the back yard and noticed something interesting. The sights on my bow were previously set up for my 28" standard Axis arrows. I think these arrows weighed in around 390g. No doubt my initial velocity was slower with the 500g arrows than the 390g, but what was eye opening was how much I had to change my pins.
20 yard pin = no change
30 yard pin = no change
40 yard pin = moved it up
50 yard pin = moved it up
60 yard pin = moved it up
This meant that despite the lower FPS at the bow the heavier arrow demonstrated a slightly better trajectory than the lighter 390g arrow at a higher velocity. I am guessing this is do to the weight factor resisting gravity allowing for slightly less drop.
Maybe something to ponder on....
20 yard pin = no change
30 yard pin = no change
40 yard pin = moved it up
50 yard pin = moved it up
60 yard pin = moved it up
This meant that despite the lower FPS at the bow the heavier arrow demonstrated a slightly better trajectory than the lighter 390g arrow at a higher velocity. I am guessing this is do to the weight factor resisting gravity allowing for slightly less drop.
Maybe something to ponder on....
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