ghost
Senior Board Member
Posts: 813
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Post by ghost on Aug 29, 2009 16:09:21 GMT -5
I don't blame you I wouldn't want to toss them either. I still have half a dozen of the Beamans that flew crappy because of the low FOC. I figure that I might find a use for them some day. I am a terrible pack rat. Do you know what the ID is of those Carbon Express crossbow bolts are? I know that the ID of the GT Laser II's is .300". I know that David at Wyverns Creations makes a brass insert for the Easton Power Bolts which have an ID of .297". I want to say the Carbon Express bolts have the same ID as the Easton but I am not sure. Davids inserts are 112g and are 99 cents each but it would save you turning them down. Bob I sent an email to Dave and he said no but if I wanted to turn down GT inserts he thought it would work. I will pull a Carbon Express insert and check the diameter. Too cheap to buy new CE inserts. ;D I have also be thinking about adding 25 to 30 grains to the GT inserts so I can use my 100 grain Boss Wasp BH. The screw in weights go on the back of the arrow reducing the FOC. Not good. Of course I could just buy brass stock and turn Carbon Express inserts but time always seems to be in short supply.......maybe a winter project. I am waiting for clear weather (satelite internet connection) to order my new arrow making supplies. Ghost |
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Post by horizontalhunter on Aug 29, 2009 21:13:04 GMT -5
Dave would be the man who knows. Turning down the Brass inserts for the GT Laser IIs would work but I think that you would also have to put in some grooves to give the glue a place to get a good hold. The brass inserts for the GT Laser II's are threaded all of the way through the insert and the weights are designed to be added at the rear of the front insert inside the arrow. All of the weights are also threaded so you can stack multiple weights together and get any arrow weight and FOC combination you want. I have used these weight screws and they work great. I used a dab of loctite to ensure that they don't loosen up.
Theoretically you could also add the weights to the rear insert as well as they are also threaded through the insert. I suppose if you were going to hunt elephant you might want to add that much weight.
Some people use 8/32 threaded rod or machine set screws to add the weight instead of the weight screws. In your case this might work better if you are going to turn down the insert. Just be careful not to screw them in to far or you will have a problem getting the broadhead seated in there.
I just built two dozen of the GT Laser II arrows today for two guys I hunt with. They are also Excalibur shooters. Finished arrow weights were from 297.5g to 300g Arrow weight only no FP or BH.
Bob
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ghost
Senior Board Member
Posts: 813
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Post by ghost on Aug 29, 2009 22:25:14 GMT -5
Dave would be the man who knows. Turning down the Brass inserts for the GT Laser IIs would work but I think that you would also have to put in some grooves to give the glue a place to get a good hold. The brass inserts for the GT Laser II's are threaded all of the way through the insert and the weights are designed to be added at the rear of the front insert inside the arrow. All of the weights are also threaded so you can stack multiple weights together and get any arrow weight and FOC combination you want. I have used these weight screws and they work great. I used a dab of loctite to ensure that they don't loosen up. Bob Great, that makes it easy. I only saw these weights a Bowhunters Super Store. I like Keystone but both are good Ghost |
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Post by horizontalhunter on Aug 30, 2009 9:27:45 GMT -5
I know that Keystone has the 10g weights listed on their website. They may carry some of the other weights as well. Gold Tip Makes them in 10g, 20g, and 50g.
Bob
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ghost
Senior Board Member
Posts: 813
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Post by ghost on Aug 31, 2009 9:57:03 GMT -5
If you are going to buy a AZ EZ-Fletch get the one made for aluminum arrows. It has green and tan arms. Bob On the AZ-EZ web site they say the Pro model will fletch arrows between 5/16 and 26/64. It is made of metal and has green and tan arms. This is the model I ordered. I have ordered all the pieces and parts now let's see if I can get them together and tested before the hunting season which starts Oct 1. ;D If not I will hunt the the Carbon Express, which killed 13 deer in the last 3 season.  I wish you the best of luck hunt in the up coming season. Ghost |
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Post by horizontalhunter on Aug 31, 2009 16:28:05 GMT -5
Ghost,
Have a great season as well. If I can be of any help drop me a line.
Bob
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Post by Cossack on Sept 5, 2009 18:56:49 GMT -5
If the longer vanes stabilize the arrow it sounds like a FOC issue rather than vanes. I'm shooting 18 and 20 % FOC GT's with Blazers just fine out of tree bows, using 100 and 125 g Slick Trick mags respectively. Fetching orientation (helical/offset) is not likely the issue with Blazers since they are so short they are unlikely to hit sides of channel.
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ghost
Senior Board Member
Posts: 813
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Post by ghost on Sept 5, 2009 21:06:07 GMT -5
Me neither. I am using the plastic EZ fletch with the 4 degree right offset. Bob How do you get your vanes so close to the nock end of the arrows. If I use Wyvern's technique for flectching in an AZ-EZ fletcher the vanes are much further away? Ghost |
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Post by awshucks on Sept 5, 2009 21:06:10 GMT -5
8-32 TPI threaded rod and allen screws weigh right at 25 gr per inch.
I did a bunch of fooling around w/ an Emax and GT's and couldn't get 25 gr front or rear to make much diff until 50 yds.
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ghost
Senior Board Member
Posts: 813
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Post by ghost on Sept 5, 2009 21:10:39 GMT -5
8-32 TPI threaded rod and allen screws weigh right at 25 gr per inch. I did a bunch of fooling around w/ an Emax and GT's and couldn't get 25 gr front or rear to make much diff until 50 yds. I am planning to add 25 grains to the brass insert so I can use my 100 grain BH, cheap old man. ;D Ghost |
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