Also a single shot speed isn't accurate. You really need to shoot through a chrono several times and take the average.
Correct. I get variations up to 7 fps depending on conditionsAlso a single shot speed isn't accurate. You really need to shoot through a chrono several times and take the average.
I have high quality 13gpi arrowsGive and take. A high quality lower GPI arrow front loaded at about 545 grains is what my bow likes to eat at 30.5" and 75#. Never been on a chrono with it but it performs well in the woods which I all I care about.
Agree. I love the dead silence of it as well.I have high quality 13gpi arrows
I also have some arrows that are 7gpi ish
I could easily build a arrow to shoot over IBO but I like how quiet my bow is with the heavy arrows I don't really worry about foc with heavy arrows my light arrows are 20%
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I 100% agree. My CPX ranges from 323 to 329. Also, string age and other factors play out over time. I haven't chrono'd the RPM360, I have shot it maybe a dozen times. It just isn't as smooth and quiet as the Invasion CPX. Any speed it does bring comes with other shortcomings.Also a single shot speed isn't accurate. You really need to shoot through a chrono several times and take the average.
The advertised IBO of his bow might be 344fps but there's no way he's shooting an actual 344fps. IBO is measured at 70#, 30" draw length and absolutely NOTHING on the string and a 350g arrow. Some bow companies even do their IBO test with a string with no serving. Or a "test" string with a few less strands than spec.I've got a Mathews dxt and I love it. I believe as long as I hit the intended target it'll for sure get the job done. It's not the fastest but it's very quiet. But a member here and a friend of mine got me thinking about speed. One thing I said was, I don't know many people that shoot a bow faster than 350 fps. My buddy bought a newer Mathews a couple years ago and it does shoot 344 fps. To me that seems extremely fast. I bought my bow years ago from a guy that told me he was getting 302 fps with it, whether that's true I'm not sure buts it's a killer. So how about it. What do you guys believe the speed of your bow is.
Bud I don't really no what to believe and to be honest I didn't think that sounded right either. That's why I asked what everyone what they believed the speed of their bows were. I know a couple guys on here believe they're getting speeds like that. Maybe they are shooting bows with a lot more limb weight. All I do know is I'm pleased with the speed I'm getting after reading the comments shared in this post. I believe most of us are shooting about the same or close.The advertised IBO of his bow might be 344fps but there's no way he's shooting an actual 344fps. IBO is measured at 70#, 30" draw length and absolutely NOTHING on the string and a 350g arrow. Some bow companies even do their IBO test with a string with no serving. Or a "test" string with a few less strands than spec.
So unless he's shooting over 70# and a draw length over 30" and dangerously shooting an arrow under 350g with no dloop, no peep or anything on the string he's not hitting 344fps. He's probably quoting the advertised IBO. The way they measure IBO, it's basically an unhuntable bow.
I think the Mathews XLR8 is the fastest bow Mathews ever made and I think it IBO'd at 360fps. One way Mathews is NOTORIOUS for overpumping their IBO numbers is their draw length. Ever notice how Mathews mods are always 1/2-3/4" longer than they should be? So when they use 30" mods they're really shooting a draw length of 30.5-->30.75 which can add 5-8fps.
70#, 30" draw and 350g arrow is SUPPOSED to be constant across the board for all manufacturers. Another trick Mathews will pull is they'll say "But 80# limbs are an option on our bow."
So a Mathews will be tested at 80#, 30.5" draw length and a 350g arrow and then people wonder why they can never hit IBO.
If a produced bow actually hits IBO ( most fall short of advertised numbers ) a 70# bow, 30" draw length and a 415g arrow would be around 315fps with a dloop and peep if the advertised IBO was 344fps.
A LOT of people get confused with the advertised IBO. Between all companies fudging their numbers it doesn't make it any easier. I hear people all the time that fully believe that since their bow is advertised at 320fps they think they are shooting at 320fps. LOL!Bud I don't really no what to believe and to be honest I didn't think that sounded right either. That's why I asked what everyone what they believed the speed of their bows were. I know a couple guys on here believe they're getting speeds like that. Maybe they are shooting bows with a lot more limb weight. All I do know is I'm pleased with the speed I'm getting after reading the comments shared in this post. I believe most of us are shooting about the same or close.