with a 30 inch arrow the z7 at 60lbs draw bow or a 70lbs draw bow shoot the the same ftps+or - a few ftps do your due diligence good sir
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Well again, if you slow bow, and then lighter arrow, your drop will be the same, as even you say, in your example, first shot, then after your example, it would hit same hole
thus, your gap wouldn't change, and all you did was lower draw weight, and lower KE of the arrow
so to be fair, I see your example as being a wash, and not changing anything really on drop down range!
I have shot 1,000 yrd matches for close to 25 yrs, so my logic goes more with guns
but again, if you adjust, compensate lighter arrow, to get same speeds as with heavier arrow, and higher draw weight, it to me would be a wash on drop
a 500 grain arrow at 350 as to a 400 grain arrow at 320, just crazy numbers
the drop down range would almost be the same, thus, pins shouldn't change?
only way I see to get pins farther apart, is again, smaller pins, or change there zero's, from like 20 to 25 yrs or 30, to like 35 to 40, and so on
the easiest and best solutions I say is a one pin sight you adjust for range?
then you do not have to maybe re tune your bow, all the more so if you like your current draw weight and set up/form
and I agree, 70 lbs is not needed for deer, or even bigger game, but like they say, dead is dead, bigger weapon or smaller, shoot what you like and have confidence in
and I am not trying to bash or turn this into a major debate, just asking and stating what I THINK, and just my opinion, and I am NO expert
so don't get all excited folks!
and you be leave that it will travel the same ftps with a lighter arrow and less poundage i can't wait to show you how wrong you are on that we will just have to agree to dis agree,, now maybe a 22 wasnt the best example
at what 70-100 yards ?????????????????????????? if he wants want to get any pin gap he has to slow down the bow down or hes is going to have to shoot a way heavy arrow from 30 and beyond point blank period and yes you lose efficiency when you turn a bow down but that dosent mean you accuracy yea he might have a problem dropping a cape buffalo at100 yards but your not going to do that at 70 lbs either
To clarify a little. Lets assume the lighter arrow at 50 pound pull leaves the bow at the same fps as the heavier arrow at 60 pound pull. The lighter arrow will lose speed faster than the heavier arrow downrange. Will it be enough trajectory to quibble over in the range of a bow and arrow, probably not. I'd say the best solution is one of three mentioned. Smaller diameter pins, longer gaps in sight in points or a single pin type of sight. I know little about bows, but I'm assuming that changing the weight would mean one would have to retune the bow completely.
And you guys thought I only knew about crossbows.
And kinetic energy has little to do with killing when it comes to archery. Hemmorage or lack there of is the key element.