sorry, arrow question.

[Duncsquatch]

I got a new longbow left-handed 60 pounds 62 inches long. I'm going start tuning my arrows to this bow. They are currently used for a a 60 pound recurve. I can tell that most my arrows will be able to be used with the longbow with a few small adjustments. I shot them with reasonable  arrow flight. Now with my recurve I never really got my arrows up to a good hunting weight they were approximately 440 grains. most of them are spined with either 340 spine  or 400 spine. some of these arrows I was given as a gift and some I found on archery ranges as I was not sure and have to spend lots of money on matched arrows at the time. so my question is with a 30 inch arrow at 400 spine on a 60 pound longbow I want to get up to close to 600 grains. my arrows are close now but if I add 100 Plus grains to it I feel like I'll have to go stiffer.  also this is the first time I will have tried to bare shaft and arrow.

[Bladepeek]

You didn't mention your draw length. If you have a little arrow length left you can play with that will be a plus. Also, are both bows cut the same distance from center? If the longbow is cut farther from center, that will also have a bearing.

As you can see from my list of bows, I play in a much lighter league than you, so I can't offer any specific advice, but I think this info would make it easier for those who draw a heavier bow help you.

[FJTOYMAN]

You can add weight to your arrows by filling them. I've used bailing twine, rope and weed eater line. This adds over all mass weight. I find the stiffness of weed eater line can affect spine some. Twine and rope really don't.

[Possum Head]

You should easily be able to put an extra 150 up front with the 400's. More than that with 340's.

[Duncsquatch]

Thanks guys I don'tave a feel for how much weight it takes to significantly change the effective spine of the arrow.   My  draw length is 29 inches, so I should have some to play with. I tried stuffing an arrow with rope last week but I did not get the Rope packed enough and it shifted in the arrow upon impact. I will have to experiment more with that.

[Duncsquatch]

I shot a few of my 340 spine arrows today bare shaft.  I shoot left handed and I was getting a pretty pronounced nock left position.  Now I think that means, my arrows are too stiff and I need to add weight. So next step is to get some heavy field points.  I am going to get a range from 300 to 150 grains.  The nock was about 2.5 to 3 inches to the left of the point of impact.  Any predictions on how much weight it will take?

[The Whittler]

For a right hand shooter nock left I believe is weak. So for a left hand shooter a nock left would be stiff.

[Duncsquatch]

yes sir that is what I have read.  Ordered a test pack of points from bigjims.

[BigJim]

300 g should be close

[AZ_Longbow]

Agreed a test pack of points will save you tons of problems. I never had luck with weight tubes. String or rope. It always caused unstable flight for me. My setup is gt velocity 300s at 30.5in I use 300gr fieldpoints. And 1.5inch aluminum footer up front.