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  • Ed Ashby
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      Post count: 817

      Troy Breeding wrote: Needless to say I had to pull out the cover scent and let her smell it to get her to believe me.Troy

      … so that’s where the term “cover story” originated!

      Ed

      Ed Ashby
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        Post count: 817

        Hi Don,

        Troy Breeding wrote: Ed has told me about seeing somewhat of a starburst pattern in the lung tissue after having a single bevel head pass through.

        Not exactly, Troy. The ‘starburst’ cut is common in intestine hits, but not the lungs. With lung hits one often sees “homogenized’ lung tissue; tissue all mushed up. I can’t take credit for the ‘homogenized’ moniker; Ray Hammond came up with that after looking at the lungs of hogs he’d shot with the Grizzly. The other unique cut often seen with single-bevel broadheads is the “L-Shaped” cut, often seen on exit wounds and on liver, heart and kidney hits.

        Congratulations, Dave, on a fine, clean kill, hunted and taken fair and square, and with a unique rack to boot.

        Ed

        Ed Ashby
        Member
          Post count: 817
          in reply to: Bareshafting pics #32696

          Troy, your next amazing discovery might be just how much penetration gain AT VERY CLOSE RANGE you’ll see with these well-tuned UEFOC arrows. When I was using normal and high FOC arrows, even though those arrows were heavy, well-tuned, carried high MA broadheads and were from heavy draw weight bows, I tried to get my shots out to at least 12 to 15 yards. I’ve often passed up shots at very close distances (especially on animals of large hog size, and upwards), waiting for a shot a bit farther out, so the penetration would be better. On shots closer than about 10 yards there was a very significant decrease in penetration; due to arrow paradox.

          A well-tuned UEFOC arrow recovers from paradox so quickly that I have found no significant penetration decrease, even at very close ranges. Pass-through hits are now the norm, even on sizable hogs with 1″+ shields, at ranges as close as 2 yards. Two yards is the closest shot that’s been offered, and it was on a good size boar with a 1” plus thick shield. That arrow passed through the thorax and buried the broadhead almost 3” into a tree 5 yards past the boar. As straight as the well-tuned UEFOC arrows fly at 1 yard I believe there would be a (thorax hit) pass-through, even at that range, on all but a truly super-size boar.

          Ed

          Ed Ashby
          Member
            Post count: 817

            Wildschwein, there is hope. I have a friend who shoots a release with his hybrid longbow and he shoots it off the shelf, with very good results. He’s using a EFOC arrow setup that he tuned using the release. His bow is also in the low 40’s and he’s taken three elk in the last three years, with 2 of the shots being pass-through hits (however, none of those hit any of the heavier bones).

            Ed

            Ed Ashby
            Member
              Post count: 817

              Dead release, hands down. I’m a bowhunter, not a target archer. If every shot I NEED to take could be taken from a ‘target stance’ I think the pull-through release would be fine. However, you will rarely get a hunting shot that allows you to strike that picture-perfect target stance. When you’re shooting from a wide verity of shooting positions and degrees of bow cant I find the dead release to be far superior.

              Ed

              Ed Ashby
              Member
                Post count: 817

                Troy, these threads are a great idea. Wish I had though of it! Walking the reader through your own tuning step by step may be the very best way to get the finer aspects of tuning EFOC/UEFOC arrows across to everyone. You’re doing a terrific job.

                ADMIN. —– I’m wondering if it might not be a good idea to put these threads of Troy’s together, once they are completed, into a single ‘EFOC/UEFOC tuning document’ in the ‘Library’. They would be a lot easier for folks to locate there than having to search for them among all the other threads, and would prevent having to repeatedly answer the same questions in the future.

                As far as that goes, A ‘Saga of Tuning an EFOC/UEFOC Arrow’ by Troy would make a great TBM article too!

                Ed

                Ed Ashby
                Member
                  Post count: 817

                  What are we looking at? Are these bare shaft shots? If all shots shown are bare shaft, move out to a longer range and see where they are hitting. It looks like you are showing a strong spine, assuming you’re right handed. A few shots at longer range will tell for certain.

                  Ed

                  Ed Ashby
                  Member
                    Post count: 817

                    wildschwein wrote: does anyone make a single bevel head in a 150 grain wieght that I could use with my current setup?

                    Try Abowyer. I think they make glue-on single-bevel BH’s down to about 120 grains. http://www.abowyer.com/abowyer_glue_on_broadheads.html

                    Ed

                    Ed Ashby
                    Member
                      Post count: 817

                      I think I can turn all the EFOC tuning threads over to Troy. He’s got it down! :D:D:D

                      Ed

                      Ed Ashby
                      Member
                        Post count: 817

                        J.Wesbrock wrote: If you’re seeing bare shafts group with fletched shafts, but suspect they are not flying straight, back up five to ten yards and shoot again. The closer you get to being in tune, the further it takes for the bare shaft to plane because it’s not leaving with bow with as much kick. As you move back, your tuning becomes a magnifying glass with increasing power — it lets you see things in greater detail.

                        That’s solid advice. Start tuning up close and work your way back.

                        Ed

                        Ed Ashby
                        Member
                          Post count: 817

                          Troy Breeding wrote: I never judge my setup by the way I see my shaft is sticking in the target. I watch the arrow in flight. The only thing I judge on when it comes to target impact is which side of the line my shaft ends up on. If it’s consistantly right of my spot/line then I trim the shaft (ever so slightly) to stiffen it (remember I’m right handed). If it’s left of the spot/line then I add point weight or start over with another shaft.

                          That’s about as concise as ‘how to do it’ can be stated.

                          Ed

                          Ed Ashby
                          Member
                            Post count: 817

                            Crystalshrimp wrote:

                            my shots were dead on but after impact the tail end of the shaft kicked straight up) would moving our nocks up or down help?

                            Correct. Lowering your nocking point should bring that nock down. That’s ASSUMING that it’s not those worn out hay bales causing the nock to kick. Either a new foam target or a big pile of loose, fine grain (masonary) sand are the best targets for seeing nock kick.

                            Ed

                            Ed Ashby
                            Member
                              Post count: 817

                              It looks like Troy has you on the right line. If you’re getting a left bare-shaft impact you are already stiff spine. That also could partially account for the difference in left-right impact when shooting vertical vs. canted. The stiff spined arrow shoots away from the riser AND away from the arrow shelf/rest. When the bow is vertical the too-stiff arrow strikes high and left. At a slight cant the too-stiff shaft will still go high and left, but not as far left. As the amount of bow cant increases the arrow tends to go dead-high (at a 45 degree cant), then to high right (of the vertically held bow’s shot impact). The shape of the arrow shelf and riser (the contact area) also affects the amount of vertical and lateral deviation.

                              Ed

                              Ed Ashby
                              Member
                                Post count: 817

                                Troy Breeding wrote: I’d think we will need more info. If I read what you wrote right the shaft bearshafted clean. Then after you fletched the shaft it shot right when you canted the bow and left when you shot vertical. Am I correct?

                                If so, then you missed something in bareshafting or changed your shooting form after fletching the arrow.

                                I’m assuming these are shots with your field points, correct? What FOC were the bare shafts? When you finished the bare shaft testing did you shoot fletched shafts and bare shafts to compare their point of impact, relative to each other? If so, were they impacting together at that time?

                                Ed

                                Ed Ashby
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                                Member
                                  Post count: 817

                                  Dang, Derek, that sure looks good! I’ve had wild pigs of assorted kinds all over the world, and they all make great eating. Even those big, tough old boars get tasty tender if cooked long and slow. 😛 Might be big one reason why I love hunting pigs so much. 😯

                                  Ed

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