09mjl01

i am going to be switching from a 200 grain arrow to a 300 grain arrow. will i need to resight or will it have no effect on my grouping.

bigcountry

Yea, you are changing arrows, I doubt spine will be exact, so i bet you might have to readjust some minor things, maybe more, and yes, its going to be at least 20fps slower, so its going to drop quicker. So what do you think?

Roskoe

Back in June, I tried some arrows that were 100 grains heavier than what the bow was tuned for and set up to shoot. I found that I needed to use the 30 yard pin for 20 yards, with the 507 grain arrows. Tuning was OK, though - probably because the spine was still correct for this bow. This might not be true in all cases though . . . . . .

r33h

I would assume you will have to do some re-tuning...especially to your sights to make the arrows hit the bulls-eye. Anytime you make changes to your bow, you are most likely going to have to adjust for those changes.

Roskoe

I guess I was thinking tuning and sight adjustments were "apples and oranges".

Arthur P

They are, Roskoe. Tuning is adjustments to the bow, arrow and rest to achieve clean launch, good arrow flight and consistent accuracy. Then you adjust the sights to make point of impact and point of aim one and the same.

Apples and oranges... but you have to have both in order to make fruit salad. You have to have a well tuned bow/arrow combo and well adjusted sights to make your arrows consistently hit where you want.

But you can't forget the shooter has to be tuned too. Practice good, repeatable form.