arrow weight and bow speed

[USMC 82-86]

#4172

What is a good weight for a arrow if bow speed is 160-165fps for a longbow vs a bow that shoots 170-175? For this question lets say both bows were tested with a 540 gr arrow. what is acceptable for the arrow weight of the slower bow vs the faster bow?

[Patrick]

#27752

For what animal?

[USMC 82-86]

#27781

Deer, Hog and possible Elk. Thanks

[George D. Stout]

#28218

Around 9 grains per pound has worked for eons, so I don’t know why it wouldn’t work now. 😆

[Ed Zachary]

#29196

The best thing to do is test it for yourself.

What ever your maximum effective hunting range is,
test arrow weights at that distance and see how much
trajectory you can put up with, and still have decent predictable groups.

I’ve shot very heavy arrows and they simply die on the vine past 15 – 20 yards, the trajectory is worse than a bounding kangaroo with his pants full. You might be able to up it to 12 gpp, but still, it’s best to try it and see for yourself.

If your tune is spot-on, you can push the envelope by experimenting with number of fletches and their length/height. I try to squeak by with the least amount of square inches and still get good broadhead flight.

[MontanaFord]

#42916

Good starting rule of thumb, from what I understand, is 10 grains per pound of bow weight (550 grain arrow for a 55 pound bow). Also, I understand that you can drop as low as 10% of the weight from that number (550 minus 10% would be 495 grains). But, heavier will definitely give you better penetration. Just make sure you know your maximum comfortable yardage with whatever arrows you choose to shoot.

Michael

[Author]

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