Lately I've been hearing a lot about how heavy arrows are better because of penetration and lots of other things. I can't decide to between a 7.5 gpi arrow and a 8.6 gpi I have a pse brute at 26" and 60 lbs. Help!
I created some info in regards to what you are asking. You might find it of value. http://forums.bowhunting.com/showthread.php?24494-Getting-the-most-from-your-bowhunting-setup
The difference between those 2 choices is negligible at best. If you want a heavier arrow, add it to the front of the lighter shaft. That will give you better penetration for your lighter setup. Sent from my DROIDX using Tapatalk 2
Isn't it true though that too much can mess up the dynamic spine of the arrow if too much is added to a lighter spined arrow?
Kinda. You would have to be border line too weak before adding weight up front would be a problem. Even then you would have to add more than 25 grains before it would be an issue IMO. For the OP I would consider Easton Axis arrows with either the 50 or 75 grain brass inserts. Sent from my DROIDX using Tapatalk 2
The answer is a lot more complex than just 'arrow weight', it includes FOC, total arrow grain weight and broadhead choice and it all depends on what type of animals you are hunting. Here's a video of some testing i have done when certain grain weight arrows and broadheads come into contact with heavy bone, hope it helps, cheers Doz
At some point I was thinking about writing something up on this – but wanted to do more shooting first to put even more info together – but since you asked the question, here’s what I got so far…. I have recently found myself in the same situation. I’ve been shooting Gold Tip 5575’s for years. Usually pulling in the mid 50’s, 29” ish arrow. Have never had a penetration issue with my arrow but was looking at trying a different setup going into the fall. Picked up some Carbon Express Blue Streaks to try out. Great thing for my specific situation is that the Blue Streaks offered a better fit for me spine wise as I was comfortably able to slide into 250’s. So I basically went from 8.2 GPI with the GT’s to 7.4 with the BS’s . I haven’t been able to shoot through a chrono – so don’t know what’s happening speed wise. BUT – I can tell you that for me, at 30 yards, my Blue Streaks were shooting around 3-4 inches higher than my GT’s! Honestly, I was pumped when I walked up to the target (of course I need to shoot more groups to 100% verify what I saw the other day - regardless, I'm confident there will be a noticeable difference in how the lighter arrow will shoot). To me, the flatter trajectory is certainly worth the loss of 30 gr’s off my setup. Also, very impressed with how the Blue Streaks hit. I’m not sure if it’s the Dual Spine Weight Forward technology or what but using my red neck methods/observations - they were certainly driving deeper into the targets that my overall heavier GT’s… I would shoot the lighter arrow and see how it’s performing with your bow. If you have similar results to what I’m seeing – I wouldn’t be afraid to go with the lighter/faster setup. The true test will be how they perform in the field – can’t wait to test them out on speed goats in about 6 weeks!
I noticed in your video you are using the Bulldog nock collars on the front of your shaft. Are you using the nock collars on both ends of your shaft? I have only used them on the nock end never the front.
There is a lot more to it than just total arrow weight and TFox is absolutely spot on with the FOC information. I had a very similar situation to SouthDakotaHunter. I was shooting a 5575 GT Pro Hunter out of my bow, but found out that I probably needed to jump to a 350 spined shaft. So, I set out to build the perfect arrow for my rig. I didn't want to jump up to a much heavier weight shaft as I wanted to retain my speeds (280-290). The Blue Streaks I found to be the perfect arrow for my setup at 8.2gr/inch. It gives me options, in that I can use a 100gr head up from and lower foc if I want to and still be safe. However, for a hunting arrow, I'm shooting these shafts with 125gr heads. At 27.5" in length, I get a 13.5% FOC. They fly very well and seem to hit the target with authority. Seems like a great combo so far.
hi mate, im not using them on both ends atm, that range come with them assembled on the nock end and i swap them to the front and glue in the insert over the top. The arrow is quite thick at the front end but its a great idea on any arrow imo to strengthen the front. Ive since shot a number of beef front shoulder bones and the only thing that has been injured has been the end of the broadhead shaft bending so that says something for reinforcement. hope that helps
Every arrow set up has an ideal weight configuration. When in doubt, add weight up front. You get an object moving quickly with little bend from having the front of it heavy and you have something that can penetrate. You get that object flexing by adding weight incorrectly and you significantly reduce it's ability to penetrate.
