I am shooting 59 pounds. I'm currently shooting 55-75 with standard inserts and 200 grain points. At a 31 inch arrow. I'm at 525. Looking to up my weight by about 50-75 grains what's the best way without affecting spine too much? Thanks. Bill
3 Rivers sells weight tubes that work very well. Just be sure to make some crimps in the tubes, it will help them stay in place so you don't lose your nock whenever you hit something hard.
Otherwise, I was originally skeptical about using para cord, but I've been experimenting with it and it works quite well as long as you have a grain scale to keep them consistent.
If I remember correctly, the para cord I've been using is about 3 grains per inch.
I am shooting 35 55's full length, weighted with weed wacker string. With 125 grain points, they weighed about 420 grains. I switched the standard inserts 100 grain brass inserts and they are now 470.
I forgot to add, when I switched inserts I pulled out the weed wacker line. So the full length unweighted 35 55's with 100 grain brass inserts and 125 grain points are 470 grains.
QuoteOriginally posted by Bullfrog 1:
I am shooting 59 pounds. I'm currently shooting 55-75 with standard inserts and 200 grain points. At a 31 inch arrow. I'm at 525. Looking to up my weight by about 50-75 grains what's the best way without affecting spine too much? Thanks. Bill
Move up to 7595. That should give you enough room to add 50 to 75gr.
You could add 3/16 poly rope to the shafts. Cut about 10" longer than shaft and pack it in. Doesnt effect spine and doesnt rattle. LB_Hntr did a podcast on it.
GT makes inserts for both the front and rear of the arrow that accept screw-in weights, that come in 20 and 50 grain increments, and can be stacked. By adding weight to both the front and rear of the arrow, you should be able to achieve almost exactly the total arrow weight you want and keep the arrow in tune. Generally, adding about half the weight to the back that you add to the front keeps the same tune as before, but this needs to be verified in each case by bare shaft testing.
I use brass inserts in my GT 55/75. They work great for me..you can get 50 gr
I will test this but do you think the extra 40 grains of a brass insert will but me too week? Thanks. Bill
QuoteOriginally posted by Bullfrog 1:
I will test this but do you think the extra 40 grains of a brass insert will but me too week? Thanks. Bill
I shoot GT, and if I was to add 40gr to the front, whether point or insert, it would negatively effect the tune of the arrow.
If you want to use the same arrows, but just get them heavier, I would think weight tubes would be your best bet.
Bisch
The following statement is a review about weight tubes by someone off of 3 rivers website, and I completely agree with them.
"I suppose if you need to increase your mass weight in a hurry, without buying new arrows this system would accomplish that. But if you want to stay w/in proper FOC percentages, and consider proper dynamic spine in your tuned arrows, these tubes mess with all that. I don't understand how this item ended up in a traditional catalog, This item may work well for compound arrows. I think if you are serious about your arrow tuning and want a heavier arrow, get shafts at the proper weight and spine."
Bill, my Life Ender is labeled 60# @ 28 but I never checked it and I shoot 55-75 GT Trads full length w/100 gr brass and 175 gr points and at my 28" draw they do great.
I shoot 5575's out of my 63lb Raptor longbow. I have 100 gr inserts with 125 gr tip. I have frontloaded with the GT screw in weights for a total arrow weight of 708 grains. It's really simple........all these other gadgets seem like a bother. BTW my draw is 32, bow is 50@28 but 63 at 32. Scott.
After seeing and handling the GT heavy hunter I would go that route. Shafts are heavy without any stuff added. Big Jim has blems at a good price.
QuoteOriginally posted by 96ssportsp:
I have 100 gr inserts with 125 gr tip. I have frontloaded with the GT screw in weights for a total arrow weight of 708 grains.
Do those GT screw-in weights just screw into the outside/front of the already glued in existing insert, and the broadhead then screws into the weight? I haven't seen these up close yet.
Thanks..
If you want to add 75gr to the front of your arrow, which would be good for FOC, you will need to cut down your arrow length. If you don't have room to cut them shorter, you would have to move up to a heavier spine shaft. I still think the easiest solution to keep using your current shafts would be weight tubes.
Bisch
QuoteOriginally posted by Bullfrog 1:
I will test this but do you think the extra 40 grains of a brass insert will but me too week? Thanks. Bill
If it does end up making you slightly weak... you can shim your strike plate out just a fuzz and dial it right back in...
They make aluminum inserts for gt that are like 2.25 long and weight 50 grains...the added length of insert will stiffen spine and you can then add weight...
Cheapest thing I've found is 1/4" clothesline. Tricked to get in there, and my advice is DONT take it out once you get it, but I think it adds around 75grains for a 25" section
As has been suggested a few times just in this thread try the weight tubes, I have been using them for a few yrs now and I would argue that they affect spine. If you do try them I believe you will be satisfied with the results, I do suggest you watch the video that 3R has and follow the instructions to a T. Crimp the tube every 2 to 3 inches with pliers and be very sure you cut them EXACTLY the length needed, the way I do it is to insert one in my arrow all the way to the back of the insert set a knock up against the arrow where it will seat in end of arrow and together pull the tube out far enough to see where the knock will sit against the tube and cut, then completely pull it out and crease the weight tube the full length of it and insert into arrow. If done right you will have a bit of resistense pushing it all the way in, the very last inch approx. push in with your knock the rest of the way, and then orient your knock to your desired position. People have complained that they have had them pop the knocks out in the past but I believe they were not installed properly in the first place. The ONLY time I have had a knock pop out is when I have bounced an arrow off a block wall out of a 55lb bow (yeh that's a whole other story).