Traditional Archery Discussions on the Leatherwall


adjust windage with point weight

Messages posted to thread:
Bob Rowlands 22-Dec-21
fdp 22-Dec-21
Corax_latrans 22-Dec-21
2 bears 22-Dec-21
Bob Rowlands 22-Dec-21
Viper 22-Dec-21
Andy Man 22-Dec-21
JusPassin 22-Dec-21
Bob Rowlands 22-Dec-21
Smokey 22-Dec-21
aromakr 22-Dec-21
Corax_latrans 22-Dec-21
From: Bob Rowlands
Date: 22-Dec-21




I shoot right handed. I shoot 20 yards and in. Yesterday I exchanged 160 target points for 190s and that immediately moved my groups to the right a few inches, without consciously aiming more to the right. Pleasantly surprised the arrows still fly straight dead straight with no fishtailing. Anyone else done this to get arrows hitting your spot?

From: fdp
Date: 22-Dec-21




Well you weakened the spine which would make them impact to the right off you are right handed. But the change shouldn't be dramaticm

But I prefer that the arrows go where I aim them. Sounds like a tune thing but impossible to tell from here.

There's a popular misconception that arrows that are not properly matched to a bow and archer will always exhibit unstable flight characteristics. That's not always the case. They just don't go where you aim them.

From: Corax_latrans
Date: 22-Dec-21




That sounds like one of those things that you can get away with…. as long as you’re only shooting field points.

FWIW, I have only very rarely been able to see fishtailing on a fletched arrow, and then only when I have a very serious tuning issue. As in about #20 worth. And even then, it can take slow motion video from my phone in order to be able to detect it. Then in the video (with a carbon shaft at least) it looks like a skilled driver taking off in a muscle car with the back end kicked out a foot or two and the front wheels running straight down the pavement. Matter of inches on an arrow of course, but you get my “drift”…. :p

Those arrows were HITTING right down the middle beyond about 10 yards because of higher FOC and large fletchings, but they were absolutely NOT the correct spine for that bow.

So I guess I would say that if you are certain that the center of your group moved a couple of inches with FP‘s, you have done something a lot more drastic than you think. But if you are confident enough in your shooting to believe that it’s the tune making the difference, I would definitely start experimenting with bare shafts to see where you are ending up that way.

From: 2 bears
Date: 22-Dec-21




Now lighten the points to see if they go left showing stiff spine. Most likely the change won't be equal but as fdp said out of tune is out of tune. >>>----> Ken

From: Bob Rowlands
Date: 22-Dec-21




I'm thinking overspine now. I got dynamic spine data from Stus calculator. All inputs were accurate. However I never played with point weight to cross check what the calc said was 'correct'. Hmmm....

From: Viper
Date: 22-Dec-21




Bob -

A heavier point will weaken the dynamic spine and theoretically move the arrows to the right, for a right handed shooter. In MY experience, that can be quite evident with bare shafts, but not so much with fletched arrows over a short range course. IOWs, fletching can hide a multitude of sins.

Viper out.

From: Andy Man
Date: 22-Dec-21




when I tune to the best of my shooting abilities its perty clear a 2016 shaft with 175 grain point is as close to perfect as I can get

but with the same set up and 5" feathers I can hit the mark with a range of shafts 1816-2117 out to 20 yards and they don't fly bad to the target

I keep a range of bare shafts cut to my length so can quickly see what a bow kinda likes

From: JusPassin
Date: 22-Dec-21




I used to do that when bare shafting wood arrows. The down side was if I was shooting at any distance at all it also messed with elevation.

From: Bob Rowlands
Date: 22-Dec-21




Just came in from shooting a few dozen shots with both my #55 and #40. Mixed results, pretty much on the money windage wise with the #40. That's the bow I made the switch. Flight is straight but it's hard to tell. After a couple dozen shots with my 40 and I switched to fifty five and they were impacting right of where they normaly do. Shooting heavier points on the 40 must have changed my aimpoint. Think I'm gonna do some bareshafting after lunch.

From: Smokey
Date: 22-Dec-21




If your close to spine with the shaft your shooting point weight is the best way to perfection.

From: aromakr Professional Bowhunters Society - Qualified Member
Date: 22-Dec-21




Bob:

The only way you are going to have a meaningful test is by shooting at a vertical line and your eye directly over the arrow, then place the point inline with the line on the target. Arrows are tuned when they hit on or very near the vertical line, to the right they are weak and too stiff to the left. And yes as you have found point weight will change the dynamic spine.

Bob

From: Corax_latrans
Date: 22-Dec-21




“ Arrows are tuned when they hit on or very near the vertical line, to the right they are weak and too stiff to the left. “

AND when your fletched arrows agree ;)





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