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11
update:

I've been spending multiple days cutting, steaming and flattening 4 buffalo horn halves. The outer ones have been doing great, but the inner ones are delaminating some. The curve on the inside is very tight, which is part of the issue. I've made sure not to steam them too long.

I decided to use only the outer halves, which means i now need to process two more horns.

Since I do have some flat strips I bought, I've decided to use these for my first build to eliminate some variables and also to save myself some extra work. I'm doing some final prep on a single piece ash core. I just need to deflex the handle a bit. After recurving it, it's only 45" NTN. I was not counting on that much shortening! It started as a 52" piece before recurving.

I'll be grooving the pieces today and tomorrow, and then sizing them for a couple days before I assemble. I'll post pics before I glue up.
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Arrows / Re: arrow spine
« Last post by Tuomo on November 18, 2025, 12:58:53 pm »
Spine does matter!
If you’ve ever shot a bare-shaft test, you know it absolutely matters. And using a bare-shaft test is the only reliable way to determine the correct arrow parameters—it immediately shows whether an arrow is dynamically correct, too weak, or too stiff.

The old rule of 5# per inch of arrow length applies only when the bow’s draw weight is around 65–75#. The rule was “created” by Saxton Pope, who shot bows in that range. For weaker bows, the rule simply doesn’t hold. In reality, the correlation is non-linear. For example, with 35–40# bows, the “rule” is roughly 2.5# per inch. And so on.

It’s also commonly assumed that a 28" arrow requires spine matching the bow weight—for example, a 30# bow needs a 30# arrow. But again, in practice this varies from archer to archer. One shooter may need 35# or even 40# arrows, while another may need 25# arrows for the same 30# bow. A bare shaft test will tell the truth.

The cut-in window has no effect. The required arrow spine is the same for wide-handle bows, narrow-handle bows, or windowed bows. If you don’t believe it, do a bare-shaft test using the same bow with different handle widths.

And finally, arrow point weight has almost no effect on required shaft spine. A 25-grain change influences spine by about 1# or less. Again—shoot a bare-shaft test to see for yourself!
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Around the Campfire / Re: update pics of my head
« Last post by Pat B on November 18, 2025, 11:36:29 am »
Yes it does, Brian. You just never know!  )-w(
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Primitive Skills / Re: Life is good
« Last post by Pat B on November 18, 2025, 11:34:38 am »
Another busy weekend at Twin Oaks, Pappy. Bet you're loving it.  :OK
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Bows / Re: Osage Selfbow
« Last post by Pat B on November 18, 2025, 11:32:56 am »
Very nice Osage bow.  :OK
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Bows / Re: Common carp backed Osage
« Last post by Selfbowman on November 18, 2025, 11:25:02 am »
I like it Kyle! That’s a good smooth shooting bow design also!
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Bows / Re: Black locusts bow
« Last post by Selfbowman on November 18, 2025, 11:19:03 am »
Makes sense pappy on the trapping.
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Bows / Re: Osage Selfbow
« Last post by Selfbowman on November 18, 2025, 11:14:14 am »
Thats a sweet bow. I like to flip the tips in the same way.,
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Bows / Re: Osage Selfbow
« Last post by Robert Pougnier on November 18, 2025, 10:59:49 am »
That's a really sweet bow, tiller looks awesome!
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