fixed blade broadhead tuning

pasquel · 01-09-2004, 09:46 AM

ok, I am sure this has been a popular question, but I cannot get fixed blade heads to fly properly on my bow. any help would be great. shooting a 29 inch draw, 68 lb bow w/ 70 % letoff. 100 grain muzzy is what i am trying to shoot

jsasker · 01-09-2004, 09:49 AM

Hi,
Are your arrows flying all over the place or still grouping but in a different spot than your field points?

Dalejbrass · 01-09-2004, 09:52 AM

pasquel,

Don't know if you've done this yet......but the most important thing to find out, is if your bow is tuned. Second most important is to find out whether or not your arrows are straight and tuned.

Once both things have happened, your broadheads should fly just like your field points.

Purchase or borrow an arrow spinner (from local bowshop) and spin test all of your arrows. If your arrows do not spin true, they will never fly true with broadheads attached.

pasquel · 01-09-2004, 09:54 AM

very irratically. bow is paper tuned, and shooting bullet holes w field points

Rangeball · 01-09-2004, 10:00 AM

What arrows at what specs?

pasquel · 01-09-2004, 10:03 AM

29 inch easton GGII, 2215, 3 inch fletch.....shooting 275 fps 5.7 grains per pound

Rangeball · 01-09-2004, 10:08 AM

Quote:

29 inch easton GGII, 2215, 3 inch fletch.....shooting 275 fps 5.7 grains per pound

Assuming the bow is properly tuned, your arrows are still in factory spec and the proper spine for your bow (I'm not all that familiar with aluminum spines), I suspect that the 3" fletching is inadequate for the task of controlling fixed blade heads, especially at that speed. They'll easily control a field point.

Spin your arrows, and assuming they are still straight and the heads spin true, re-fletch with 4" or better yet even 5" and see what happens. Chances are, you'll be good to go.

pasquel · 01-09-2004, 10:17 AM

does fletching size, and weather plastic or feathers, effect arrow speed?

Rack-attack · 01-09-2004, 10:24 AM

Ditch the 3" fletch - they have no place in fixed head hunting.

Go to a 5" with as much offset as your rest will allow.

Quote:

bow is paper tuned, and shooting bullet holes w field points

The above quote and BH tunning have Zero connection.

Make sure arrows are straight

Make sure BH alignment to ferrul is dead on (no wobble when spun)

Make sure there is NO fletching contact on rest.

Check bow timing/tiller/and specs.

The shooter is often as much to blame as the bow when it comes to broadheads. Make sure you are not tourqing bow and your form and drawlength are correct.

Good Luck

Rack-attack · 01-09-2004, 10:26 AM

Quote:

does fletching size, and weather plastic or feathers, effect arrow speed?

Feathers are much lighter, IMO work better - and will give you more speed.

5" feathers will be faster than 3" vanes.