Disappointing 1st Bow Hunt

[MagicBlade]

This year is my 11 year old grandson's first year bow hunting. He has taken lessons and has practiced at 20 yards with great accuracy. His bow blind is set up at 25 yards from the feeder.

He shot two doe at 20 yards and made two good vital shots. Drew blood on the first but didn't get good penetration. Same with the second.

I'm wondering if he's pulling enough poundage.

What poundage would you recommend to obtain good penetration.

Both shots were well placed and right where you would expect a heart shot.