I have done one dry fire...LOL, my hands were really sweaty and I didn't have a release at the time, it just some how slipped and it just made a loud noise. A couple of weeks later my string started to pull apart, like long pieces of it was just coming off, it wasn't because I never waxed it enough, (I wax my bow 3-4 times a month), and It was a brand new string.
After working in the shop for a while I have seen more than my fair share of bows being dry fired. Most of the time, something ended up being broken. However, out of all the Hoyt dry fires I've seen, they have all been just fine. I have seen 2 Brownings that haven't ended well. One cracked a limb, and the other exploded into pieces.
I wonder if the design engineers are dry firing bows during production to test the durability....I make engines...and I try tofind ways to blow themup.... so we can learn...
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"Cherish your time in the woods"
I dry fired a PSE edge 1000c one time. It broke my cables, broke my wheels and cracked the lower limb. Also it cut, scraped and bruise my arm up real bad. I was 14 and I been shooting at a shop all day after getting my bow set up. When I got home I went to my room and drew it back, the next thing I know it flew out of my hand with a loud pop and a crack. it hurt bad...... Sent it to PSE and it came back with new limbs, wheels and string and cables ( for 75 dollars ) so I basically had a new bow. I learned a lesson that day and since then I have only drawn back a few without an arrow, usually I am outside with an arrow..
I have seen at least a half dozen Mathews dryfired in the shop when I was still helping there. Only one had any issues, and that one only needed a new string. The others were fine. I dryfired my old 04' Patriot as well and had no issues with that one.
I saw a 98' PSE Baby G Lightning 1 cam dry fired at the Harrisburg Sport Show by someone I know.........I don't want to mention any names but Frank was pretty embarrassed.
(The bow didn't fare very well either......think Humpty Dumpty )