Primitive Archer
Main Discussion Area => Arrows => Topic started by: donnieonetrack on May 14, 2009, 02:13:55 pm
-
I'm having problems getting the correct arrow spine with my short draw bows.
48" bow, 55# @ 22"
Arrows 25" long drawn 22".
Should I go over spine or under spine? Both seem to hit fine but have a lot of bow slap.
thanks,
Donnie
-
Are they 25" to the back of the point?? If so Try some 40#spine if you are shooting off a shelf and 35/40 if shooting around the bow..
-
Longer arrows are easier to get back on track after being shot off the bow...short is harder to keep straight on path
-
Longer arrows are easier to get back on track after being shot off the bow...short is harder to keep straight on path
Thats exactly what I use on all of my Short Bows...Longer and weaker spined Arrows...
-
I get bow slap too....but then again I tend to use arrows that are a bit overspined. I also shoot with the bow perfectly vertical.
The most quiet short bow I've built (46" NTN) was a narrow hophornbeam bow made from a sapling. It's a little less than 1" wide at the handle and it fires arrows like a rocket launcher. It's also the hardest bow for me to shoot accurately...go figure.
I wrap my handles with soft buckskin or chamois to dampen the bow slap.
Good question...looking forward to the responses.
-
HEy Donnie,
Try shooting longer arrows, maybe 28 or 30 inches even. I have a very short 36" Hupa replica bow that I made a few years back and I found that a 34" rivercane arrow flew the best off of it. It didn't have any bow slap and I was surprisingly accurate with it at 15 yards. Those shorter bows just seem to work better with longer arrows.
I saw a short Pitt River bow in the Smithsonian a few years ago, and the accompanying arrows were about 33-34 inches long, so the natives also knew that long arrows work better on short bows.
-
Thanks for the responses, I took a cane shaft spined at 95# and bare shafted it this weekend. I scraped the shaft between shots and when the shaft flew straight it spined 40#. That's a 25" arrow drawn 22" with a 55# bow. Changing the point from 160 grain to 100 grain didn't make much difference.
thanks,
Donnie
-
Donnie, when you spined the arrow, what was the span? Was the span 22" (draw length) or 25" (arrow length)? Also, what was the deflection? I assume you used a 2lb weight? Thanks.
-
Dang I got one right for a change! :o
-
Patirck, I added a longer point to the shaft so I could spine at 26" with a 2# weight. I don't remember the deflection but can check when I get home. The same arrow shot very well out of 5 of my short bows ranging from 35# to 55#.
The bow you made really liked the arrow.
I'm not sure but your bow seems to shoot a lot harder than before and I'm thinking about hunting with it this year.
From now on I will ask Knightd for spine advise!!!!! ;D
take care,
Donnie
-
Donnie, glad the bow is working well. Juniper seems to like humid climates. :)