Arrow weight question

[archerjustin]

I was recently checking the weight of my arrow shafts befor fletching them and noticed 3 of them were exactly 13 grains off. This is before nocks and fletching. All of the shafts did have inserts already glued in. My question is should I just not shoot these 3 arrows or can I add 13 grains somehow to the other 6 arrows? Also, does it matter where I add the weight if I were to do so? Seems strange as Gold Tip claims thier arrows to be +/- .5 grains. These are Gold Tip Pro Hunter Arrows.

[deerslayer#1]

The places I buy my shafts will take them back if I'm not satisfied. If a shaft is a few grains off, I put some lead shot under the field point. 13 is excessive and could be the glue on the insert.

[Adam Gibbs]

possibly different inserts

[mattm]

see how they shoot before you mess with them When I buy a dozen arrows I usually try to find the four best flying and use the rest for practice. sometimes the glue used in the inserts can change the flight of an arrow

[ThePro]

Unless your shooting spots for money and trying to hit a nickle every shot. I wouldnt worry about it. shoot them and see if your groupings are way off from the 3. I doubt it will but check first!!

[archerjustin]

Unless your shooting spots for money and trying to hit a nickle every shot. I wouldnt worry about it. shoot them and see if your groupings are way off from the 3. I doubt it will but check first!!

These were going to be my target arrows!! Seems weird 6 of them would be exactly one weight and three others would be exactly another weight. If I add 13 grains to the nocks on the lighter arrows they should fly the same right?

[Michihunter]

YES it matters where the 13 grains is missing/added. FOC could change as could spine. Take em back if you're not satisfied.;)