took my bow in today for its 1 year inspection.
got 6 new arrows while I was at it....talking with the owner he was telling me that my arrow weight of 390 grains was fine for whitetail but a tad light for mule deer and elk.
Recommended I bump up the arrow weight to 410-420 grains.
What weight are ya'll guys shooting? with this arrows I can add 20-30 grains with a weight behind the insert...really easy and adds FOC.
I've never had a issue on passthru's with this set up however I've never really shot anything big, a 150 lb pig about the biggest
Go to www.archersadvantageonline.com
like $12 bucks a year. That gives a quicker and cheaper way to make sure you are very close on spine.
Play with it(fletching number/weights, pt weights.etc). With that said tune your arrow to your bow not bow to arrow. Iíve killed animals with 360gr to 620gr, 9% to 22% FOC. Only thing I didnít have a pass through on was a high shoulder shot elk that lived. That was a 510gr 18% FOC,287ft/s, two blade single bevel. (Moral of story-no matter what you shoot 99% chance you wonít beat the shoulder blade on an elk)
Now with all things said the real truths are
Penetration is determined by Broadhead design first, weight second, spine/tuning third.
If I had a short draw, I would first look at two fixed blade heads with bleeders(solid,iron will), or two blade(cutthroat, VPA, kudu, etc). Note two blades make rough tracking on high lung shots.
I look at arrow weight and FOC as an outcome to shoot better not a number to chase.
You may go up to 420gr (correctly spined)and shoot best groups you have, may go to 450(correctly spined and groups open back up. Let your shooting tell you what you need weight and FOC wise.