Horn crossbow?

[stuckinthemud]

Very nice, looks really good, love it

[Selfbowman]

Ok weather permit. Will shoot this bolt in the morning.

[Selfbowman]

Pic

[bownarra]

Hard to find 100lb crossbows,but I played with an RC 150  Barrnet back in the day which is a 150lb. cross bow, and no I never hunted with it. Just back yard fun shooting off hand at 20 to 40 yards, and playing with a chrony..  That bow shot 265 fps with a 325 gr bolt, and has wheels, so it seems like Arvin's numbers are pretty good for a first try.

My modern crossbow with a similar bolt @150# does 315fps.
Crossbows are always going to be poor performers compared to a handbow as the drawlength is so short. Drawlength is king with crossbows. The longer the draw you can squeeze out the better they perform.  Hence why the Chinese etc made theirs with horn/sinew prods and the trigger (like I showed) way back in the stock like a rifle. You want good performance with a crossbow you need to max out the drawlength and to do this the back and belly must be matched in properties.

[Selfbowman]

Bownara this has been a test. I agree with the draw length. I shot this morning . 😂The. bolt came out tumbled and went the big distance of 50yds. 😁😳😂 some tuning required!
Arvin

[stuckinthemud]

You could try a bolt rest at the extreme front of the stock as a 1st step.

[Hamish]

 I don't know about modern crossbows, or whether they use a nocked bolt/quarrel. All the older bows used a string with a fat serving and bolts with a flat end, no string nock. Maybe that might be easier to do.

[Selfbowman]

You could try a bolt rest at the extreme front of the stock as a 1st step.

[Selfbowman]

Hamish I am not hardcore primitive. I do like to mix old with new. But yes then there is wheels. Kinda like a garage band. Not great but having fun being there.  Arvin

[bownarra]

The area the bolt rides along should be flat. I see you have a 'ramp' near the end? Most crossbows don't have nocks on the bolts. A flat nock or a halfmoon nock. The string should be pressing on the stock slightly all through the draw imo. This ensures the string always rides in the same place.
I can pull out one of my old ones and get some pics if you want? Made this way you can group 6 bolts touching at 30 yards.

[stuckinthemud]

Umm I wonder if you need a more positive way to keep the alignment of string and bolt trajectory..  i have had good success with this method. It was pretty much universal on old crossbows,  but I have zero experience with modern 'bows.

[Stoner]

Arvin, All I can say is FANTASTIC CRAFTSMANSHIP!!!  Truly enjoyed this build. John