I've shot GT Velocity pros at 357grains and then shot some Easton FMJ's at around 430 grain out to about 40 yards and couldn't tell much of a difference so far (besides speed and drop) groups were both pretty tight. My CS 30 is 29", number 3 cam, about 72 pounds. The FMJs where penetrating my "the block" about 1-2 inches more though.
My Spyder Turbo shoots best with arrows between 375-425 gr. I have two sets that I routinely use, my Easton Da'Torch (375 gr) and my Easton Carbon Injexions (409 gr). The Injexions shoot the best - most accurate and quietest. Hope that helps.
Mine likes a heavier arrow at distance but at normal hunting distances I dont see much of a difference other than 1-2 inches deeper penatration into the target. I shoot 450 grain Black Eagle carnivores and have like the results.
I've found my Spyder Turbo to be much more spine critical than weight. At 65# I shoot GT Velocity Pros 340s and Easton AC Carbon Injection 330s. I would have to say that other than the heavier Eastons feeling more solid and quieter there isn't much difference in accuracy as far as I can shoot accurately. I played with some GT Vel Pro 400s for a while and my groups were noticeably bigger than the 340s.
A forum community dedicated to bow and crossbow owners and archery enthusiasts. Come join the discussion about optics, hunting, performance, troubleshooting, styles, reviews, accessories, classifieds, and more!