When I miss 3D target and hit something hard , the arrow shaft broke just behind the point. I saw one tool which helps you to insert internal point weight, and now I have idea to insert some plastic or aluminium rod to strenghten arrow shaft. This action will not change properties of the arrow to much.
Does anyone have experiance with inserting weight into wooden shaft. Does the insert realy strenghten the shaft. How long should be the insert? Does insert makes that arrow broke at the end of the insert?
It sounds like what you want to do is actually foot your shafts. I don't think inserting anything inside the arrows will help, and it will affect the spine of your arrow quite a bit I would think.
This may help you to understand what I'm talking about a little better.
http://tradgang.com/noncgi/ultimatebb.php?ubb=get_topic;f=1;t=085200#000000
I've been doing it on and off for years. Arrows still break when they hit something hard with a glancing blow, though they tend to break near the end of the insert. Overall, though, I'd say the insert adds just a little more strength. My objective in using them is to increase FOC, not to strengthen the arrow immediately behind the point. A standard wood footing is better for that purpose.
In my experience, the internal footing adds a significant amount of strength to the front end of the arrow. There's a metal rod just about 2" below the heart on my 3D target that holds the legs and the whole target up and hitting that the right way has put cracks in the front end of my Axis Nano Carbon arrows...my Douglas Fir arrows with a 2.5" tungsten internal footing show surprising resistance to breakage when encountering this rod. The arrow I tried this on survived 5 hits before finally being damaged, at least two of them being glancing blows that would have hurt my carbon arrows...my field point got pretty deformed before the shaft finally cracked along the grain.
Given my shafts are at least 95# in spine, but I still found it impressive :D
Craig
I find that hardwood footed shafts help with arrow durability a lot. Forward weighting is for FOC improvement.
The internal footing with tungsten in hard to beat, especially with a Doug Fir arrow! I'd put them up against any carbon or aluminum for toughness.
Andy