Bnett: 1-800-237-4507 press 2.

Min weight on Rev 425 gr. quote: "No Lower!!" Current weights being shipped w/ bows 443 gr +/- a few.

The reason the Strykers are shooting good is they have a ton of FOC compared to bnetts. I'd try them w/ 100 gr bheads w/ an inch of 8-32 tpi screwed in nock w/ loc tite if you have threaded nocks on the Stryker arrows. same over all weight, but not so "nose heavy". Ask cossack how he likes that nose heavy, lol.