heavy 5/16 screw in adaptors?

[Longtoke]

Hey guys looking to draw on some of your expertise regarding 5/16 glue on points and putting them on adaptors.

I have a whole mess of 125g judos for my 5/16 woodies that i no longer use. I tried putting them on an 11/32 adaptor and all seemed well until my shaft took a hard impact.

Sent the knock out the back, peeled the front of the alum shaft like a banana but left the insert and adaptor in the shaft still. Judo point was no where to be found.

This was with the standard ferr-l-tight hot melt.

Don't know if it was just from the exceptionally hard impact, or the 5/16 point on a 11/32 adaptor, or if maybe epoxy would have saved the day.

I would love to find some 5/16 adaptors that could bring the point weight up to around 250g.


thoughts?

[olddogrib]

To get anywhere near that weight you're going to have to use steel adapters which, as far as I know, only come in 11/32nds. and 75, 100, and 125 gr.  PM if you need some. I assume that's what you were using.  It would be better if you had the 11/32nds Judos, but I'd use what I've got.  If you hit rock, something's going to fail.

[achigan]

Talk about perfect timing! I just got a dozen old Eskimoes from a guy who went out of business years ago. 110 grains-ish. I was thinking of grinding off 10 grains or so from a 100 grn steel insert. What are the downsides? TY

[olddogrib]

None that I can think of, provide you de-bur so that it still fits flush up in the head and is aligned properly.  Sounds like a lot of work, though  If you're looking for 200 gr. total 10 gr. is not going make any difference.  Think of it this way, those of us that are honest admit that we tend to get more excited when we shoot at live game and slightly short drawing is not unheard of...that extra 10 gr. will compensate for this perfectly, lol!

[achigan]

Thanks for the quick reply ODR. I'll have to see how it all works out.

[Orion]

Of course, another way to achieve more weight up front is to use heavier inserts.  50 and100-grain brass inserts are available for most 5/16 shafts.  Then, you could use a 5/16 aluminum adaptor with your heads.  The aluminum adaptor then becomes the weakest part of the up front package.

Hit anything as hard as the hit you describe and it's likely to pop the nock as well as push the head/adaptor insert back into the shaft mushrooming the end.  That's one of the reasons folks foot their carbon shafts with larger aluminum arrow pieces. Can do the same with aluminum shafts.  Epoxy is stronger than hot melt. Makes them almost indestructible, but not quite.

Good luck.

[Shadowhnter]

Sounds like a hard hit more then any fitting issues.

[SlowBowinMO]

We have STEEL 100 grain 5/16" broadhead adapters in stock if those help make life simpler for you.

They are on on the page link below if you scroll down, under the "Deluxe steel adapters".


  Link:  Adapters Page at Braveheart Archery

[olddogrib]

Ding..ding..ding, we have a winner! Is 100 gr. the only weight they come in or just what you carry?

[Biathlonman]

Tim's 100 grain 5/16" adapters are super nice.  Ive bought a bunch for my 145 grain Ribteks and will probably buy more soon.

[SlowBowinMO]

Originally posted by olddogrib:
Ding..ding..ding, we have a winner! Is 100 gr. the only weight they come in or just what you carry?

They are only available in 100 grain and as far as I know we are the only place that has them.

We have aluminum 5/16" adapters as well of course.

[Longtoke]

Thanks guys! always have the best info here on tradgang.

I was playing around with some thin walled alum shafts and had a deflection that sent it right into a concrete bird bath lol. soild.   I bet a carbon shaft might have made the difference, as far as me not loosing the point,  or epoxy..... but If i can find the right adaptors then why not?

got a handful of glue on 5/16 BHs as well