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Main Boards => The Shooters FORM Board => Topic started by: Snakeeater on February 28, 2007, 01:14:00 PM

Title: Changing the spine on a 2219 to that of a 2018
Post by: Snakeeater on February 28, 2007, 01:14:00 PM

OK, I need some help from you aluminum arrow gurus out there. I shoot a 53# recurve with an arrow that is 29.5 to 30 inches BOP with a 125 grain point. A 2018 flies without wobble and is consistent from it. A 2219 sometimes will not hit where it should and sometimes has nock end to the right. I think the problem with the 2219 is that it is overspined for my bow.

Unfortunately, I love 2219s because they are so durable and I like having a hard hitting arrow. So, my question is this, how much more grain weight would I need to use on the 2219 to effectively weaken the spine to that of a 2018, in other words to take it from a deflection of .337 for the 2219 down to the .464 of the 2018?

The reason I am asking this now is that I am going to stock up on some aluminum shafts and I want to get the 2219s if I can make them work.


Thanks to all,

Snakeeater

Title: Re: Changing the spine on a 2219 to that of a 2018
Post by: Jason R. Wesbrock on February 28, 2007, 01:34:00 PM

According to the Easton charts, you'd have to add at least 150 grains to your existing tip weight. There's a huge spine difference between a 2018 and a 2219.

Title: Re: Changing the spine on a 2219 to that of a 2018
Post by: Snakeeater on February 28, 2007, 02:09:00 PM

Jason, do you mean move up to 150 grains or up to 275 grains? Where can I find the charts you are talking about?

Title: Re: Changing the spine on a 2219 to that of a 2018
Post by: Molson on February 28, 2007, 07:11:00 PM

With a 160gr head you should be able to get them to work.  You may have to cut 31" bop but they should fly.  Check out the arrow charts on bowjackson.com. They are a very good reference.

Title: Re: Changing the spine on a 2219 to that of a 2018
Post by: Jason R. Wesbrock on February 28, 2007, 07:34:00 PM

Larry,

Try this one. It should work. And yes, at least 150 grains more than what you're using now.

Honestly though, 2018's are very tough as it is. I don't think I'd mess with it.

  http://www.sportsmansguide.com/resource/easton/Easton_2005_spread_charts.pdf

Title: Re: Changing the spine on a 2219 to that of a 2018
Post by: DesertDude on February 28, 2007, 09:25:00 PM

Snake......If you ar set on 2219 then start bare shaft testing and go from there. I'm not real sure of any High gr inserts but, take a steel BH insert and glue different weigh wood field points and go from there. you may find that a 2020 does the job for you also with less tuning problems......Mark

Title: Re: Changing the spine on a 2219 to that of a 2018
Post by: Wai on February 28, 2007, 09:48:00 PM

http://www.huntersfriend.com/2007-Carbon-Arrows/arrow-selection-guide3.htm

Title: Re: Changing the spine on a 2219 to that of a 2018
Post by: Wai on February 28, 2007, 11:49:00 PM

Oops.  Sorry for the previous post with the link.  That was for compound bows.  Here's ones for recurves:  http://domino.htcomp.net/bhn/Columnists.nsf/d731dec9a617821886256590000646df/ca196c7c196f33ef862565a20066391f?OpenDocument

and this one:
 http://www.geocities.com/archeryrob/spine_qualities.htm