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in reply to: Installing Inserts in Carbon Arrows so they Can Be Removed for Tuning? #58035

I always use hot melt with no worries…YET. What I like to do is use aluminum external footings. That allows me to heat the footing which is over the insert then pull out. If no footing then just put in a field point, heat, then pull out.

When I begin getting the front of the arrow loaded the way I like it and it bareshafts slightly weak I then fletch the arrow. I put the feathers on about 1/4 to 3/8″ further from the nock than normal. If I happen to need to cut the shaft 1/16″ of inch or so then I will not need to unload the front to cut.

Richie

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in reply to: ABS Ashby single bevel BH #56650

Dave,
IYO, How would you assess the new 200 gr. El Grande with the 25 degree bevel IF it was scary sharp? Just curious.

Also is the Brown Bear head solid piece of machineey? The picture makes it appear to have a ferrule that is actually attached to the blade. Correct of not?

Thanks
Richie

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in reply to: Experimenting with EFOC is Expensive! #55486

Then that explains what I experienced with the 7595 Trad blems versus the Ultralight 300. Both being .300 spine but different wall thickness.

More great info. Thanks

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in reply to: Experimenting with EFOC is Expensive! #55371

M,
First of all anything I type on this site is stealing information or plagerizing several people that I am priveledged to learn from. I then just try to listen, learn and put to practice.

When trying to achieve Ultra-EFOC, I now know the first step, like Dr. Ed and King DeVille has said before, is to get an arrow that accomplishes two things:
1.) Too stiff with for your bow/pull weight and 2.)lightest gr./in you can get.
The above will allow you to load up the front which will weaken your already TOO stiff shaft back to the middle.

A while back Dr. Ed mentioned using the GT Ultralights. Well I looked and looked and found the GT Ultralight Entradas at EagleArchery.com for $3.99 each plus $6 handling and can be bought in 1/2 dozen at a time. It is shafts only. Fletched shafts may be available as well but not sure. BTW…my Ultra-EFOC setup mentioned above is with three 4″ hand cut banana feathers.

Another thing about getting high FOC is efficiently managing the weight up front. For example, the first GT Ultralight 300 I loaded was 826 grains with 31.2% FOC. I then used another arrow and cut it only 1/16″ shorter, moved the weight around getting it more and more to the front of the arrow away from the fulcrum.
It is now only 3 grains heavier and 32.3% Ultra-EFOC. Big difference by just managing the weight more efficiently.

They fly great and I will be shooting 3D tournaments with these arrows.

Richie

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in reply to: Experimenting with EFOC is Expensive! #55322

Is there some sort of correlation between the gr./in. and the affect of the spine? Or is any .300 spine arrow of the same length going to react the same regardless of the gr./in.?

I had been trying to load an Ultra-EFOC setup with the 7595 Trad blem arrow. It is supposed to be .300 spine just like the Ultralight 300 that I described in the last post. The 7595 Trad wasn’t even close. I had to cut it 1 inch shorter with 40 gr. less up front to get it too fly right with the same bow.
I am guessing that because it is a “blem” that it is not spined .300. I have asked Big Jim that sold these blems and he said he has never had a spine problem in the thousands he has sold. I think I have the first one.

The Gold Tip Ultralights are definitely the “go to” arrows if Ultra-EFOC is on your agenda but I was just curious about this issue with the 7595 Trad blems.

Any thoughts and answers are appreciated.

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in reply to: Experimenting with EFOC is Expensive! #54699

From my last post:

“I just got some Ultralight 300’s to try with my 71 lb. bow. I just put everything together and shot it. It is 31.2% Ultra EFOC and only 789 grains. I have only cut off 1/2 inch of the 32 inch arrow. I still have room to cut and make it stiffer if I want to add 50 more grains. Then it would be around 32.2%.”

Well I now have the GT Ultralight 300 at 31 5/8″ from groove to end of insert, (then another 1/4″ to back of broadhead). 825 grains and 32.5% Ultra-EFOC shooting from a 71 lb @ 31 inch Widow recurve. Very simple loaded arrow. It just gets better and better.

CORRECTION:
829 grains and 32.3%

Richie

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in reply to: Experimenting with EFOC is Expensive! #50508

M,
I suggest the GT Ultralight Entrada 400. It is .400 spine and 7.4 gr./in. Probably keep it full length. You could probably make the 500’s work as well by cutting shorter, etc.

You can get them at eaglearchery.com for $3.99 each and can get 6 at a time.

Richie

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in reply to: Experimenting with EFOC is Expensive! #50353

I have been building arrows of late for my 71ish lb. recurve. I have been using GT Big Game 100’s and have gotten the FOC to 31% but it had to be in the 1000 grain range to do so. And that is not all bad. I like heavy for several reasons.
As I have mentioned before I have used the GT Ultralight 400 and 500 and built arrows for my sons’ lighter weight bows with FOC 32.7% and 820ish grains.

I just got some Ultralight 300’s to try with my 71 lb. bow. I just put everything together and shot it. It is 31.2% Ultra EFOC and only 789 grains. I have only cut off 1/2 inch of the 32 inch arrow. I still have room to cut and make it stiffer if I want to add 50 more grains. Then it would be around 32.2%.

I totally understand this is not nearly as important as loosing our Country and our liberty, literally as we speak, but it is just a little tinkering success.

Richie

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in reply to: Experimenting with EFOC is Expensive! #48616

M wrote: So then I should buy some arrows with the lightest GPI and try to tune the bow to the arrow?

Yes lightest you can find but a size TOO stiff for your bow weight so that you can load up the front. Loading the front will weaken back to straight.

Richie

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in reply to: Shoulder Shots 2 #44763

What happened in Africa that you speak of? What can I research to find out more about that terrible event?

Richie

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in reply to: A Starting Point for EFOC Arrows? #44438

Dr. Ashby, I have recently bought the GT Ultralight Entradas at EagleArchery.com and buying 6 at a time for $3.99 each and $6 handling.

Richie

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in reply to: A Starting Point for EFOC Arrows? #43088

Cfiles,
There will be plenty more entries and information here better than mine but here goes.
First of all I would suggest the first step would be to start with a 3355 spine arrow that is the lightest grains/inch that you can find. For example, I have recently hand loaded an arrow for my brother’s 52 lb. longbow that is a Gold Tip vapor pro and weighs around 6.3 gr/in. It shoots stiff with a light point so I use a 300+ grain point with 100 gr. insert. Due to the heavy weight up front the arrow is now weakened to allow it to fly perfectly. In addition, the FOC is now 32% and the total weight is nice and beefy around 650 gr. (I forgot and now my brother has it so I can’t weigh it)

Just one example.

Richie

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in reply to: Shoulder Shots 2 #39185

Easy King DeVille, why don’t you let these nice gentlemen in the white outfits take you to a real comfortable and safe place. They are really nice guys!

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in reply to: Time to increase EFOC #35392

Both arms are now up in victory. I officially have an arrow that will kill a T-Rex.

I haven’t been fortunate enough this year to smoke anything with that setup but that IS my hunting arrow. It shoots extremely well and I just figured if I can create that type of arrow manhood….why not? No downside yet. I also just put on a SBD 10 strand skinny string. Maybe that will help even more.

My goal is to be like King DeVille when I grow up and “not be scared of no shoulder”.

Thanks for the reply,

Richie

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in reply to: Time to increase EFOC #34980

Dr. Ashby that is exactly what I have noticed. I have even cut 1 grain of the male part of the nock, used 3 inch feathers, no wrap, etc. and it does make a difference. Like I mentioned once before, it is all about weight management when maximizing FOC.

In your studies have you experimented with 1000+ grainers with 30+% UEFOC. Kind of the cake and the feast too.
I just measured and made sure of details again….I am shooting GT Big Game 100 at 1029 gr. with 31.3% UEFOC.
I know you have tested 1000 grainers and 31+% UEFOC but not sure if I had seen information where they were both crashing the party at the same time.

Richie

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