Okay, so I read through the search results on bolts and found some good information but NOT specifically what I was looking for. My hunting crossbow is going to have a max draw weight of 190lb and I want it to be good enough to hunt something as large as elk. So I know I need to make decently heavy arrows, but I'm still wondering about what diameter of wood shaft material and whether spine weight makes any difference. The last set of bolts I ever made were quick and dirty for my SCA target crossbow. I think they were Port Orford Cedar and either 11/32 or 23/64 and probably the highest spine weight I could find - probably 80+ lb or more if I remember correctly. Should I just buy the largest diameter (23/64) wood shafts I can get and just go for the highest spine?
Spine I guess doesn't really matter when you're not having to deal with Archer's Paradox, except maybe a higher spine would make for a more durable arrow because they're less resistant to bending and thus more resistant to shock one would think. Also, if you're buying 32" shafts and cutting them in half, or perhaps cutting them slightly longer (16-17") then you're increasing the spine and getting an even stiffer arrow, theoretically. Again, maybe none of this really matters in a crossbow. Also, I see now that none of 3 Rivers wood shafts are available spined any higher than about 80-85lb. Also, they now include some other interesting, heavier options than the typical POC shafts, namely Douglas Fir, Ash, and Lodgepole Pine to name a few. All of those appear to be available in 23/64 as well. Looking at the hunting regs where I would be using this bow, it appears that the minimum length I can get away with for an arrow is 16". If I'm lucky I might be able to get two arrows out of a single shaft, assuming with the tip (either field point or broadhead) would make the total length be 16" or greater.
Spine I guess doesn't really matter when you're not having to deal with Archer's Paradox, except maybe a higher spine would make for a more durable arrow because they're less resistant to bending and thus more resistant to shock one would think. Also, if you're buying 32" shafts and cutting them in half, or perhaps cutting them slightly longer (16-17") then you're increasing the spine and getting an even stiffer arrow, theoretically. Again, maybe none of this really matters in a crossbow. Also, I see now that none of 3 Rivers wood shafts are available spined any higher than about 80-85lb. Also, they now include some other interesting, heavier options than the typical POC shafts, namely Douglas Fir, Ash, and Lodgepole Pine to name a few. All of those appear to be available in 23/64 as well. Looking at the hunting regs where I would be using this bow, it appears that the minimum length I can get away with for an arrow is 16". If I'm lucky I might be able to get two arrows out of a single shaft, assuming with the tip (either field point or broadhead) would make the total length be 16" or greater.