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Sparkitoff

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Reply with quote  #1 
Soooo, I have my arrows tuned with 145 grain field tips. That is over a 50 grain insert. Now I cannot seem to find a broadhead that is screw-in and 145 grain weight. Do I try 150 grain broadheads and just have to shoot them to figure out gap?  I looked at adapters for glue-on but still can't find a combo to get the weight to equal 145 grain. Found some little brass weight washers, so I could add 2 to a 135 grain BH. What other remedies are there? How much difference can I expect for 5 grains weight difference?
longcruise

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Reply with quote  #2 
Suggest just trying the whole setup with 150s first and see how they work.  If you have an accurate scale, try weighing your arrows and note the weight of each.  Then try weighing each of your broadheads and note those weights.   Just guessing,  but I'm betting you find enough weight variations to conclude that it doesn't matter to the extent of 5 grains.   Course I've been wrong before!  🙂
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Longcruise
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tradlongbow

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Reply with quote  #3 

3Rivers sells those 5 grain brass washers. One washer might be all you need. 

 


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fdp

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Reply with quote  #4 
5grs. of weight makes no difference at all.
Larry Dean Brandes

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Reply with quote  #5 
Even with my target arrows from years past, I could not tell the difference of 5 grains.  If 5 grains will make any difference you would need to be right on the edge of proper spine.  Many people often take a softer shot at game than a flat shot at a target, 5 grains heavier would put you closer to complying with a softer shot.  On the other hand, with some arrows the added length of a broadhead can decrease the spine slightly.  I have seen it myself with cedar arrows when comparing the 190 Rib tech to a target point.  The target points occasionally would give me a slight click with a softer release, while the same spine shafts with the big Ribtec never  clicked, but of course those arrow all vary a few grains from one to the other, the nature of cedar shafts. 
Huntschool

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Reply with quote  #6 
I think....  You are over thinking it.....  5 gr. is nothing.  Go shoot it and see what ya got.  I would venture...  No difference.
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Bruce A. Hering
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Selden Slider

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Reply with quote  #7 
You'll never notice a 5gr difference.  Frank
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Draven

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Reply with quote  #8 
What was said above: 5gr don't count.
Do a test: scale your arrows without broadhead first and check the variation in grains from one to another. 

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