Post by: grousetracker on January 14, 2015, 06:48:00 PM
Post by: RadSav on January 14, 2015, 06:53:00 PM
I know 6grns per pound is legal but concerned with my set up, partial tear of rotator in shoulder caused me to drop my poundage and arrow set up. I shoot 49# and arrow at 303gr 28''draw.
303 grains at 28"! Are you sure that's right?
Post by: lokidog on January 14, 2015, 07:14:19 PM
Your setup sounds like it will be fine. You might want to make sure your arrows are spined correctly if they were purchased to go with a heavier draw weight on your bow.
:twocents:
Oh yeah, also make sure you have some really sharp broadheads, I here Savora makes some good ones.... ;)
Post by: Cap.Silver on January 14, 2015, 07:23:57 PM
Maybe this would help :dunno: . Just curious ...do you weigh your arrows on scale ?
Post by: grousetracker on January 15, 2015, 02:32:59 PM
Post by: RadSav on January 15, 2015, 03:59:25 PM
400 spine with 28" draw and 50# should work out well. Might show slightly stiff on the charts with a 100 grain broadhead and an older bow, but they should still shoot good. Plus you will see a bump in penetration with the stiffer arrow.
Post by: D-Rock425 on January 16, 2015, 07:29:05 AM
Post by: grousetracker on January 21, 2015, 07:03:38 PM
Post by: Gamblin Guy on January 21, 2015, 07:20:52 PM
Post by: jpharcher on January 21, 2015, 07:31:49 PM
Post by: grousetracker on January 23, 2015, 07:00:49 PM
Post by: RadSav on January 23, 2015, 10:38:34 PM
I shoot easton lite-speed arrows and they weigh 6.5 gpi, 75grain tip 500spine ,the bow is drenalin L.D.28'' draw 28''arrow the bow shoots 256fps with this setup.
Wow! I think you have something wrong with that bow besides way too light of spine and arrow. At 49#, 303 grain arrow and 28" draw length you should be 10-20 fps faster than you are. How long has it been since you had the cable guard roller bearing replaced? Are you seeing excessive wear in the area of the cable rollers? Something just isn't adding up! Do you have a really good Mathews dealer you can take it to for a complete clean and tune? Has to be some bearing issues going on in the system somewhere. That or a string issue of some sort.
As far as arrows are concerned...IMO you are WAY too light for repeatable performance on elk. Your optimum spine for that set up would be 450. So I would be inclined to error on the stiff side with a 400 spine arrow. Should fly more consistent and will definitely penetrate considerably better!! Plus the 400 spine arrow will add weight and you really need to get above 350 grains in my opinion. With my wife we noticed a considerable threshold of penetration improvement once arrows went above that mark. You will probably drop some speed with the 400 spine, plus you will likely need to step up to a 100 grain point for proper FOC, but you will definitely gain penetration and flight consistency.
You could split the difference and go with an A/C/C 440. Could also add a little speed by going to the Maxima Red 250 which is a rather weak 400 spine (417-418).
Post by: Gamblin Guy on January 23, 2015, 11:16:01 PM
I've got your info entered into OT2 but I cant copy it into a reply. Basically with the info you've provided it's showing velocity at 255, 6.4 Grs/lb and KE at 45.
Legal yes but not ideal for elk....
Post by: coachcw on February 18, 2015, 06:52:37 AM
Post by: DIYARCHERYJUNKIE on February 18, 2015, 07:31:47 AM
Post by: coachcw on February 18, 2015, 09:02:35 AM
Post by: bowhunterty on February 18, 2015, 10:14:04 AM
Post by: Jonathan_S on February 18, 2015, 10:27:21 AM
450grains is good ! I shoot 421 ! + - 5 grains :chuckle:
Ditto that. I really like my current setup :tup:
Post by: jstone on February 18, 2015, 10:54:41 AM
Post by: SGTDuffman on February 18, 2015, 04:42:21 PM
ya the arrow with 75gr. 500spine at 28'' draw 49pounds, weighs 303gr. tried 100gr tip and the bow was untuneable and tore paper terrible. not enough poundage to shoot 400 spine.
If you increase point weight, it can weaken the spine, requiring a stiffer shaft. The poundage isn't the problem with spine. I have a 50lb longbow and I shoot GoldTip Traditional in 55/75's (400 spine) out of it. I also have 210 grains of weight on the front between the insert and the head. Then pin nocks, wraps, and feathers on the back. They total 542 grains.
I can plug all your info into my spine calculator later and tell you what's up, if you want. The more info the better. Bow make/model, weight, draw length, ibo, weight of anything on the string, like silencers, peep, loop, etc. Also arrow model, length, spine, insert type & weight, point weight, fletch type & weight, nock type & weight, wraps or not, footing or not, etc.
Post by: Greg Mullins on February 25, 2015, 02:25:59 PM