Fortunately although the gun broke nobody was hurt and the construction of the gun itself (barrels & metal parts) held up perfectly. As predicted the wooden handle was the weak point of this build, as a result it was the point of failure. Please never test fire your homemade guns in your hand the first time, NOR THE SECOND. As you can see here the handle didn`t break on the first attempt! Always test the 1st couple of shots remotly! I will be continuing this build in the future, no more wood will be used. I will make a metal only handle and hammer guides......