An example of how tough carbon or carbon/Alum composite (Easton ACC) (velocity = 243 fps) can be with standard 125 gr. field point screwed into a standard alum insert held with hot-melt glue:
1. Aimed at a brick wall + hit a brick = arrow splinters for 4-6 inches as insert is driven into shaft, nock blows off from compressed air driven by the insert. Penetration = 0 inches (bricks are hard when they come out of the oven)
2. Aimed at a brick wall + hit mortar between bricks = arrow not damaged because penetration of 0.25 inch into mortar (sand and cement) dissipated energy enough to prevent damage.
For easy stump removal, use any head that is larger in diameter at the front tapering smaller toward the rear (rubber/plastic blunts and hex-heads, etc.)
Use judo's or similar in grass/weeds/leaves and have fun