Does anyone make/sell a brass insert heavier than 100 gr.?  Seems like it would make it easier to get the forward weight for EFOC than to have to add various adapters, heavier heads, internal footings,etc.  It sure would make it easier to use all the accumulated lower weight fieldpoints and broadheads sitting around the shop collecting dust.  :confused:

I haven't seen them heavier then 100 gr.,I consider over 20% is EFOC.It may come with time that some one will make heavier inserts if there is enough market for them.Or you could glue in some extra weight with the 100 gr. inserts,I shoot 100 gr. inserts with 125-175 gr. points in alot of my arrows,which is plenty of FOC for me.I like the adjustabilty of using 100 gr. inserts and then using different point weights for tuning.

The inserts that I am using have a tapped hole(8-32) on the end in the shaft. You could glue a screw or piece of threaded rod in there. They also make weights for that.

nothing commercially available besides the 100gr brass inserts.

the back of the brass inserts could be drilled and 8/32 tapped for brass or steel screws glued in.  too late for those inserts already glued in, though!

I have several steel insert adapters that are 238 grains.  I paid $3.50 ea.  I will sell if interested.

 

Dick,

How's the tuning going?  Those 55/75s a little stiff?

I've wished I had a tap & die set in 8-32. That is what I understand the universal thread on the inserts and points in archery are...

It should be easy to start the 8-32 tap in the front, chase the existing threads and come out the back, threading the brass 100 gr. insert all the way through. Then it's a simple matter to use all thread and weights (Gold Tip used to sell 20 gr. brass weights that screwed over 8-32 all thread), or the PDP system to continue to add weight.

Of course, Ashby and ADcock shared a system of using an "internal" footing of a parabolic tapered wooden insert that is epoxed in behind the brass insert, adds weight and ostensibly controls the flexation of the shaft behind the insert so there is no snapping off on off-angle hits + creates pretty high EFOC. Article is on here somewhere...  

There probably hasn't been enough demand for a heavier insert.  I'm sure if you contacted the manufacturer and ordered 10,000 200 grain inserts, you'd get your wish.

You can make up the difference by going to steel adapters.

You can simply use multiple inserts with the Beman MFX's since they are one O.D., if you are using the 5/16" inserts with the "lip" either turn the "lip" down or cut just behind it and use the remainder behind a full insert.

If you use the brass inserts from 3 Rivers all you need to do is pick up some Gold Tip wt adapters.  They will screw into the back of insert.  Plus they come in various wts and are stackable.  You can also get a special tool to remove or add more wt by removing the nock and going in that way.  

They will work on the AD and 5/16" brass inserts.