Alright, did some test shooting last night. Not real sure what to make of it though. I shot from 10 & 20 yards to check things out. Now from reading I have heard alot of people claim you shouldn't have to have 2 different pins for 10-20yrd shots, the same pin should work for both but that just isn't the case with my bow & I'm not sure if it's me, the sight, a old bow string or what. At 10 yards I was drilling a 4" grouping. I was happy with that & moved out to 20 yards & using the same pin I shot low. So the next couple shots I moved to my second pin which I had sighted last year for 20 yards & was alot closer. It was shooting left but the elevation was right. I figure the left was all me & maybe some wind since there was a storm blowing in. Could a old worn bow string cause my shot to move that much from 10-20 yards elevation wise? Like the bow has lost alot of speed or something? Possibly the cheap heavy Walmart Wolverine arrows I'm shooting? I read so many people saying they don't sight a pin closer than 20 yards but mine is forcing me to have a 10yrd & 20yrd pin set.
Once you start comparing arrows around the same price point, look for low weight tolerance and straightness. For example, the arrows I purchased this year have a weight tolerance of +/- 2 grains and a straightness tolerance of +0.004". This means each arrow in a set of 12 will be within those specified tolerances. Your cheap-o arrows are cheaper because they have very poor tolerances some as high as +/- 10 grains and 0.010" between shafts. Individually this isn't a terrible thing but shot groupings will suffer with lower tolerance arrows and if you do like most guys and split a dozen shafts into a 'practice set' of arrows and 'hunting set', you may wind up with differences in accuracy in the field - which is exactly what you don't want when you've got one shot. I've heard that too. I've tried with just a 20 yard pin. I'm still more accurate with a 10 yard and 20 yard. Depends on the shooter in my opinion. Again, take everything "everyone else says" with a grain of salt. When I think about how I hunt, I would rarely have an opportunity to shoot past 30 yards. I have three pins, 10, 20 and 30. Last year I split 3 arrow shafts at all three distances (not all in one session thankfully lol). I'm used to shooting with pins at 10 and 20. It's comfortable for me and I'm accurate. I've always done it that way. Trying to change to using a single 20 and 30 or 40 would be more difficult than simply continuing to practice at 10/20/30. My opinion on the string question is your string would have to be super stretched out to really make a noticeable difference in drop between 10 and 20 yards; something which I don't think would have happened over a single season unless the string was brand new and not pre-stretched. Now I too have shot those Wolverine arrows and they are pretty heavy (something around 9 - 10 gpi if I recall correctly). A heavier arrow will fly slower so maybe that's what you're seeing. I honestly wouldn't worry too much about it though. Pick some decent arrows and sight them in and unless you've got some terrible drop off at around 30 yards (talking like a foot or more from 20 to 30 yards) you should be good to go for the season.
