Are you using aluminum arrows? I preferr carbon over aluminum, as carbons do not permanently bend....My 20 inch carbon arrows are only 360 gr., that is with aluminum inserts at both ends(flat alum. nock) and 100gr point. 450gr seems like an awfully heavy arrow...even for aluminum....if you know which company produces this weight for 20 inch arrows, please pass it on. Anyway, this is really a very small point to quibble over, as all extra weight does is create a faster drop rate.....over 40 yds it is easily compensated for....with any bow.

BTW, bolts do not have feathers or vanes.....I shoot arrows from all my bows.

Todd