So I’m looking for a way to get a certain arrow set up. I want 700 grains total weight with a 30% extreme f.o.c set up. I need to keep my 140 grain broad heads as i have over 100 of them. I also like being able to use judos that are the same weight as my.
Here is what I have come up with. 2 brass 100 grain inserts. I grind down the end on one so that it would fit completely into the shaft. I used a finish nail and cut it to the length i needed. Put the finish nail into one insert then slide the other insert on to the opposite end of the nail so that the ends of both inserts face each other. Then I put one punch in one end and the other punch in the opposite end and hit with a hammer to bend the nail locking the 2 inserts together. Simple, quick, and effective.
This gives me a total insert weight of 185 grains.
My arrows im testing are my goldtip 3555 and some 5575 and so beman 340 ics. all arrows are cut to 27 inches. my longbow is a 63# at 26″ longbow and I pull about 25.5 inches. So far my bare shaft testing has me leaning really heavy on the goldtip 3555 flying the best. The 340s are way too stiff. the 5575 are just a hair to stiff. Still need to fine tune the testing. I want to stay with a 27″ arrow as I have a ton of them in a bunch of sizes. (don’t want to cut to tune).
So my 3555 set up (if i go that route) makes a 695 grain arrow with 30% E.F.O.C set up as follows 27″ GT 3555 shaft, 100 grain brass insert, extra 100 grain insert, 100 grain steel adapter, 140 grain head, and the knock.
Added bonus is the extra insert will work like a poor mans internal footer and help strengthen the shaft as the total insert length is about 3 inches with both inserts together.
I’m pretty excited to do more testing with this set up.