Years ago, I purchased Terminator Select 4560 carbon express arrows cut to 28", while shooting my compound bow set to approx. 50#.
Now, I'm shooting my new crossbow set to 125#. I shortened these arrows to 20", added 125 gr field point, and shot one arrow, which seemed to fly fine.
Does anyone out there know what the spine would now be equivalent to. The crossbow suggests 300 spine arrows at 23". Is my window safe?