im at a loss

[bouncer6475]

i have a horton blackhawk. 200lb draw. 300+fps. i shoot lightning strike alum arrows tipped with monotec G5 heads 100 grain.and use a multirange horton scope. ive been shooting this bow for 3+yrs and have never had a prom..now after i sighted it in this season. my 10 and 20 yd lines r dead on but my 30 is shootin bout 4 inchs high.. i never had this problem before all past seasons the line were perfect out to 50 yds but now they r off.. could it be the scope or is it more than likely just me??? btw. my last 9 shots were from a rest

[smokepolehall]

Does yer model have that dial a range? If so it maybe messed up or moved.

[Hotburn76]

That sounds weird to me. A bow shooting higher would mean its is faster if nothing is wrong with the scope. I would not think it is the dial a range since your ten and twenty are still right on. Are you using the same arrows as before. If you were using carbons before and now aluminums that could do that but I would not think that much. The carbons are heavier then all. Not sure what to tell ya. Are you sure it does not look like something is wrong with scope? Also, same B-head as before, same weight?