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  • richard roop
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      in reply to: Math Question; #138622

      Way more math than I can wrap my mind around.

      What I was implying was that, for example, my Super Kodiak, 60# @ 28″ shoots a 500 grain arrow 182 feet per second.  VxVxWT in grains divided by that 450,240 number  gives me 36.78 foot pounds. Divided by 60 pounds of draw weight ……….. the bow is 61% efficient.

      On the other hand, my 60# Pearson Mercury Hunter shooting the same  500 grain arrow at 174 feet per second comes out at 33.6 foot pounds of energy and is 56% efficient.

       

      No ??

      richard roop
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        HEY !!!!! …………………….. Now we know who posed for that statue ‘The Thinker’.    BwaaaaaHaaaaaHaaaaaa !!!!!!!!!

        When I get some more free time, I’ll have to drag out the Decibel Meter and compare speed to noise.  I swear, my work is never done.

        richard roop
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          Numbers !!!!

          Long as I had to drag the crono out, might as well blow the dust off of a few sticks.

          Shooting (with one exception) 2213s w/160 grn points & 40 grn inserts. All bows (with one exception) are 60 ” & 60 lbs @ 28. My draw length is just under 27″.  I am a wee bit anal about ‘tuning’.  Wadda ya mean I can’t shoot bullet holes bare shaft paper tuning ??

          Black Widow GreyBark one piece ………………………… 185 fps.

          Bear Super Kodiak …………………………………………….. 182 fps.

          Damon Howatt Super Diablo ……………………………… 180 fps.

          Ben Pearson Mercury Hunter ……………………………… 174 fps.

          Damon Howatt Hunter 62″ –  70# & 2213 w/ 165 grns total up front…………..195 fps.  (For the dozen or so shots that I can manage with this one, the arrows positively scream downrange.

          Interesting note; Wyatt Earp once said “Fast in fine…….Accurate is final”.   My ‘go – to’ bow for this past tournament season has been the slowest of the bunch, the Pearson Mercury Hunter.   Still a classic.

          richard roop
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            THAT’S IT ??????

            For no more than that Calif. Bowman Hunters runs separate divisions for ‘shelf’ and ‘elevated rest’ ????

            And I’ve been told that the animals I’ve taken with my ‘curve didn’t count because ‘rests ain’t traditional’ ????

            What strange creatures we be !!!!

            I’m going to give the shelf about a week trial run then decide which way to go.  So far I can’t fault the shelf, it just still don’t ‘look’ right.

            Need to run a few shafts thru a cronograph, too.  Bow seems to have a bit of snap to it !!!!

            richard roop
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              ????? I thought that the Mamba was of the Damon Howatt flavor.

              Ok ………………………. Been doing some shooting with my latest orphan from the eBay Adoption Agency for Wayward Bows. Quite happy with the bow.  Shooting  off of the shelf, …… less so.  It just doesn’t ‘look’ right at anchor.  I’ve always been a rest guy w/split fingers and usually hold my own at tournaments.

              So ……………………. What is the advantage of shooting off of the shelf over shooting off of a rest ?????

              Thanx !!!!

              richard roop
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                We had a somewhat similar event at Apache Bowhunters in Globe Az.  last Sunday.

                It started out with a refrigerator magnet of a Scorpion.  Did the shadow-graph thing with a flashlight and made a couple of templates out of cardboard, one large & one smaller.  Put the template on fresh cardboard and hit the edges with a black rattle can.  Viola ………. quick scorpion target.  The fun part is the scoring; a large circle in the ‘kill’  for 15 points, smaller circles in the claws for 25 points and a really small circle in the tail stinger for 50 points. Anywhere in the body scored 5 points.  Scoring circles were marked with small ‘dots’ .  Distances were 5 to about 15 yards for the smaller targets and 15 or so yards out to 30ish yards for the larger ones.  Twenty targets, two arrows per each.

                Now for the fun stuff; a handful of us old farts headed out wading thru the B.S. all the way.  At the shooting positions one had to decide, go for the larger / lower score circles or the smaller / higher score circles.  There were a lot of ‘no score’ areas around the high score circles.  More than once I shot a couple of really good arrows that were not quite good enough for a zero / zero.   The guys were brutal, too. “Hey, that would have been a good shot if you hadn’t missed.”

                All in all, we had a GREAT time and are looking forward to doing it again.

                richard roop
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                  Ok……………… Possibly 15 score might be 300 paces ???

                  richard roop
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                    I can deal with gravity that fluctuates; As Cal Vogt used to say, ‘If the arrows go high, look low in the spot. If they go low, look high in the spot.’

                    But a compass that can’t be trusted …………………….. That just ain’t right.

                    richard roop
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                      in reply to: Compass ???? #137709

                      Seems like whenever I take a shortcut downhill it either involves a sheer cliff or whitewater.

                      richard roop
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                        Yeah but on my range, gravity can’t always be trusted. It fluctuates and some days is stronger than other days.  That’s gotta be the reason why my arrows go high or low ………………………yes ???

                        richard roop
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                          in reply to: Compass ???? #137666

                          Ironic that you should mention that. We’re a bit more rural here in Az. but one time I did manage to get un-disoriented in the fog from the sound of a pick-up going over a cattle guard off in the distance.

                          richard roop
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                            Post count: 583
                            in reply to: Second Bow? #137651

                            Good call on attending shoots. Just hanging around the practice area can be interesting, but take everything that you see & hear with a grain of salt.

                            One more thing; If you’re going to work your way thru first bow, second bow, dream bow ………………. if you don’t already have a bow-stringer ; GET ONE !!!!!! No sense going to the trouble of finding ‘your’ bow and then twisting a limb on it.  I like the Selway model but there are several available to choose from.

                            richard roop
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                              Post count: 583
                              in reply to: Second Bow? #137648

                              Mainbowdude;

                              There’s a 69″  ‘Vintage Bear Tamerlane’ currently on EBay. 40#@30″.

                              Not sure if it would be what you would want to put camo tape on & hunt with but it is one fine looking stick.

                              richard roop
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                                Post count: 583
                                in reply to: New books #137449

                                Just ordered ‘The Legend of Harold Groves & the Spitfire Bow”.  Should be interesting.

                                richard roop
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                                  Post count: 583
                                  in reply to: Second Bow? #137447

                                  One more thing, another place that I spend too much time at on eBay is ‘archery book’ .

                                  The older Archer’s  Digest type books are great reference books and usually pretty cheap.  Good reading, too.

                                Viewing 15 posts - 436 through 450 (of 504 total)