can you'll list some pros and cons for using a 100 gr. vs. a 125 grain...i don't really see any other then which on makes your arrows fly better?that and it is much easier to find a 100 grain broadhead then a 125 grain.
josh

I have been wondering about the same thing too. I would think the 100 grain would fly faster and farther, but I could be totally wrong. I use 125 grain only because where I get my supplies they have both and I went with the rifle mentality that bigger is better. But, this could be totally wrong.

lighter = faster less drop hever= bigger hole

Depends on your shaft. It has to match of course. I shoot 125s because I want the heavy weight and max penetration.

100 is goodfor deer100unless you are hunting elk

If you shoot a shaft that has a lot of flex then you want to shoot a lighter broadhead, because heavier will cause it to bend more and be slower!

Now if you shoot a shaft that doesn't have much flex than you can shoot either depending on which one performs better for you!

Personally I choos a a light broadhead because i like maximize the speed i can get out of my bow, and plus thats just what works for me.

thanks guys, i am shooting a newer parker (05 model) am shooting around 290 fps or so, have always been shooting a 125 graing (31 inch draw, carbon arrow's) but wanted to buy some mechanical broadheads that had a large cutting diameter, but most makers only make the larger sizes in 100 grain... so i got some practic tips with 100 grain and shot them and they seem to be faster, but other than that i couldn't see any real differences.....
thanks for the advice guys...since i only shoot blacktails and maybe a black bear i think the 100's for now will be fine...
josh

Why is it that people get all wrapped up in a curtain weight head is best. It's only best if it matches your shaft. Yes lighter is faster, but just lighter mean nothing if it's not on a matching shaft. If you're after speed, then by all means go with lighter and find a shaft to match. If you favore more momentum and want penetration, then go heavier with a shaft to match. If you're shooting 100s on the same shaft you shot 125s it can be or maybe not.... a proper match. If you're shooting 290 with 125s why do you feel a need for more speed? Really, I don't see the point of this at all.

Then why chime in?

Speed is momentum, which equals more penetraton!