I hope this helps someone.
I have always believed everything I have read that suggests that if you take your time and learn your tackle, you will be accurate.
Here is why:
I had Marty Thompson build me his Ossabaw high performance longbow. Wicked nice- smooth and quiet and dead in hand.
About the time I received it I happened to be down at RMSG and shot a bow down there and put every arrow in a 2 inch group. No hassle. No super concentration please please let this arrow fly true. I just shot this bow/arrow combo and every arrow went into the spot I looked at.
!!!!!!
1) I now had (by chance/luck) finally shot a bow that with its particular set up and my particular style of shooting shot the way a bow is meant to shoot. ie: Deadly.
I cannot tell you how helpful shooting a bow that does this can be. It is like a revelation. A door opens and your minds says "ah yes, thats how its supposed to work"
So I finally had an idea what to aim for (no pun intended) regarding tuning!
I wanted MY bow to shoot out of MY hands like that bow. So the journey began.
I read up on OL Adcock's bare shafting. While on that part that finds the right spine I ordered two 450+ skinny strings from Josh.(OliverStacy)
So this is what I did:
I shot in the strings without silencers and found the bow brace ht sweet spot. On my bow it is easy to find. One twist either way and it lets you know. PERFECT!
Then I put on a little knot of cat whiskers (just nine strands, like nine lives get it?) down 9 inches from the tips.
SILENT! Well, almost. Pretty darn quiet.
So I am shooting the spined arrows that work and I am still getting large groups and getting frustrated because I cannot for the life of me account for why some of my shots are so crappy.
I tried a lot of things like side plate stuff and shelf stuff and concentrated on my release stuff and sacrificed a ----, wait, that part is not true just kidding, but could not get the groups to compress and I KNEW it was something(s) in how I had this tackle set up. So I went back down to RMSG and shot some arrows out of this bow for them. Tommy suggested knocking off some tip weight because he was seeing some wobble on the arrows quick trip down range. So we reduced by 25 grains. The arrows now flew like darts even if my groups were not great.
------SIDEBAR-------
(you need someone else to watch arrow flight for you, it helps A LOT, they can see what you cannot and you should be concentrating on shooting not catching a glimpse of an arrow as it spends 1 second in the air)
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So I went home and started from scratch with the string. Took off the silencers and found the sweet brace ht. Put back on silencers, Then, shooting only broadheads, I twisted the string one twist every group of arrows.
And guess what? If I twisted the string even ONE twist too tight or ONE twist too slack I got poor groups. But with the brace ht EXACTLY at 7-3/16 I could shoot a three arrow group under 2 inches. EVERY time. I shaved fletching more than once. This perfect broad head grouping/accuracy brace ht is about two twists away from the no cat whiskers on the string perfect brace height. They differ slightly.
So what is my point?
Read and understand a tuning method. Just one mehtod at a time. Follow directions. Be patient.
In OL Adcocks tutorial he mentions that when tuning for broadheads that a twist or two on the string will bring them in. THAT is why its worth reading about tuning arrows and tackle. It worked!
Some little detail may well be between your bow/archer/arrow combination and really tight groups. Find what that is. It may take awhile and
only change one small thing at a time!
But keep at it. When you find it you will know it. Get help from someone. Don't be too hard on yourself. It may not be you. It may be how your tackle is tuned.
Joshua