I like the 100grn for deer but in va you must have 125

Huh? Don't know where you heard that, but it's not true. The only restriction on broadheads is they must be at least 7/8" wide.

When did that rule go into effect? I always used 100 grain when I lived there.

I just read through their regulations and I don't see any where it says this. Where are you getting your info?

The only thing I found on the Virginia Fish and Game site was this....

While hunting deer with bow and arrow the following restrictions apply:

Arrowhead widths must be at least 7/8-inch wide or expand upon impact to 7/8-inch.
Bows must be capable of propelling a broadhead arrow at least 125 yards

He is a rifle hunter and is probably talking about 100 and 125 grain bullets......don't think he has ever bowhunted.

125 works just great for me! I like the extra weight....I get better flight at longer ranges.

I'm glad to see you're really getting into this bowhunting. You will enjoy it. Its a great time of year. I've been bowhunting for over 30 years now and used to use 125 gr broadheads. Now I exclusively use Muzzy 100 gr 3 blade broadheads. I believe these have a 1 1/16" cutting width which meets most state laws and they fly as good as field tips thru a properly set up bow.

compound shooting up to 55# = 100 gr.
55-75#= 100-125 gr.
Traditionals.........................= 125-145 gr. range
This is simple keep it simple. But if your state doesn't allow 100 you'll have to live with it.

Who knows how much further a 100 gr. broadhead will fly compared to 125 gr. with 65 lbs pull weight?

I doubt there is much difference and certainly wouldn't affect hunting ranges. A heavier arrrow will retain more energy downrange and will not lose speed as quickly as a lighter arrow.