Silent which arrow do you shoot? If I shot an arrow with 10 gpi then a 26.5 arrow would weigh 265 grains plus the veins and inserts. When I add the 100 grain broadhead then the total would be about 365 grains.
265 is what the bare shaft would weigh. Then you add about 15 for the insert and 12-15 for the nock and the about 20-25 for the veins. You can count on adding about 50 grains or more to your weight with components.