RE: Arrow Speed
i have the barnett rhino system 4. it originally came with the carbon bolts and was rated around 316 fps-320fps using 100gr. heads. but i switched to alum. bolts 100gr. heads. they don't seem to vear off coarse as easy as the carbon in windy conditions. so i will gladly sacrifice a few fps for better accuracy. as far as how much they weigh in one vs. the other i don't know. but i'm guessing my alum. are around 305 fps - 310fps. i'd like to get a new one but don't have the $ as mine is heavier and louder than most - but it gets the job done and i'm happy with that. it's also been very dependable!