Max speed

GaryL · Post by **GaryL** » Fri Sep 24, 2004 12:50 pm

Did some testing today with a single lazerII goldtip brass insert front alum. rear, 4" feathers. Bolt weighed in at 426gr and cronyed at 328fps, brace height at 1 1/4".

my croney

Pic of speed reg.

Smooth MONSTER

Woody Williams · Post by **Woody Williams** » Fri Sep 24, 2004 1:00 pm

Bring on the Rhinos!!

That baby is smoking at ..............

102 ft-lbs of Energy

GaryL · Post by **GaryL** » Fri Sep 24, 2004 3:09 pm

W.W. you may not believe this one, but I took the Vari Zone off my 185lb Emag set it on the Max, turned up the speed dail to 350 and that baby was right on the mark!

Which means I have too resight as it is only shooting 328fps

GaryL · Post by **GaryL** » Fri Sep 24, 2004 5:09 pm

Disregard the previous post on max speed, it's shootin faster then the 328fps I reported using a 425gr bolt. I had the chrony too close. I have to resight in and will upgrade the results over the week end.

Woody Williams · Post by **Woody Williams** » Fri Sep 24, 2004 5:30 pm

Did the VariZone make a liar out of your chrony..

Faster, eh?

Wowee!!

Fill us in when you can...

GaryL · Post by **GaryL** » Fri Sep 24, 2004 5:53 pm

Woody Williams wrote:Did the VariZone make a liar out of your chrony..

Faster, eh?

Wowee!!

Fill us in when you can...

Yep I sure will W.W. and yes it did

Woody Williams · Post by **Woody Williams** » Fri Sep 24, 2004 6:47 pm

I'm going to guess 338 fps.....

Let me know how close I was...

wabi · Post by **wabi** » Fri Sep 24, 2004 9:36 pm

328 sounds reasonable.
My exocet looses about 1 fps for a 3.5 grain arrow weight increase. Using that formula with an advertised speed of 350 fps with 350 grains you're 76 grains heavy. 76/3.5=21.7 and 350-22=328, right on the chart

GaryL · Post by **GaryL** » Fri Sep 24, 2004 9:44 pm

wabi wrote:328 sounds reasonable.
My exocet looses about 1 fps for a 3.5 grain arrow weight increase. Using that formula with an advertised speed of 350 fps with 350 grains you're 76 grains heavy. 76/3.5=21.7 and 350-22=328, right on the chart

wabi I had my crony too close I moved it out to 5yrds and picked up fps, dup shots for 3 and 1 @ 2fps slower 1@ 2fps faster. Will test more tomorrow but less say w.w. was dang close. I will re-set the speed ring per the specs on sighting in then will crony at 5yrds and at 10 yards and see what we get...

by 5 & 10yrds I mean that is how far out the crony will be sitting.

Woody Williams · Post by **Woody Williams** » Fri Sep 24, 2004 10:20 pm

Wabi,

I've always heard that it is 5 to 6 grains per feet per second gained or lost.. i read it somewhere once upon a time...

GaryL · Post by **GaryL** » Sat Sep 25, 2004 1:04 pm

OK sighted in today and retested my speed...WoodY Williams the speed stayed the same the crony did not lie.....328fps with a 425gr bolt. I set my crony at 10ft as the specs read and again at 15feet and get 328fps with a 425gr bolt. Set my speed dail at that range which is a close guess as it jumps from 325 too 350 on the dail...Sighted the ole cross hairs at 20yrds, right on....

What makes me a little mad is I lost 4 brass inserts to the 3-D target

Pulled out the bolt lost the tip and insert, 4 times

so I have to call Dan Miller and see if he has the brass inserts.

Shucks maybe I will go alum...2219....vanes....125 tip, see what that weighs as I want to stay with 425gr bolt.

wabi yer were right with your cal.

I do not understand how I got a couple of different readings yesterday when I moved out the crony further

, other then poss. lighting conditions at the time. I have two cronys and used them both today and got the same readings 328fps...

Edited again: Well I just weighed a 2219 with alum inserts front & rear 4" feathers and get 341gr....Reckon I will stick with the carbon bolts as that will put me over my 425gr limit I want. OOOh well

wabi · Post by **wabi** » Sat Sep 25, 2004 7:32 pm

Gary L.,
A 2216, 5" feather fletching, and a 125 grain point should be close to 425 grains. I'll weigh one up tonight and see. If you're interested I think I have a dozen new 2216 shafts I could fletch up for you.

GaryL · Post by **GaryL** » Sat Sep 25, 2004 7:47 pm

Man I tell ya wabi, I don't know why I did not

of that as I shoot 2216's from the Emag. I will have to weigh one out again see what I get. Thanks

GaryL · Post by **GaryL** » Sat Sep 25, 2004 8:37 pm

2216, alum inserts ft & bk, 5" vanes, 125 tip = 420gr wabi...as close as I could get with the 2216's. Just might have to go with that untill I get some brass inserts and more Lazer goldtips..

Could also go with a longer 2216 and pick up the extra grains