RE: Correct Arrow Weight
 

Im relatively new to bowhunting, and ive been told this before, but what do the numbers - for example- 2315 represent?

RE: Correct Arrow Weight
 

The number 2315 is actually two two digit numbers. The first number indicates the outside diameter of the arrow shaft in sixty-fourths of an inch, and the second number indicates the wall thickness of the shaft in thousandths of an inch. A 2315 shaft would be 23/64" in diameter and have wall thickness of 0.015".

RE: Correct Arrow Weight
 

That arrow likely will be a little on the heavy and stiffside for your set-up, and may cost you some speed. Your set-up is really close to mine (27", 55# draw). The recommended arrow for my set-up is a 2115. I couldn't find these ANYWHERE so I went with a little heavier arrow,a 2117 (tipped with 100 grain head) and it shoots GREAT with excellent penetration and accuracy...I would give something a little smaller and lighter than the 2315 a try.

RE: Correct Arrow Weight
 

Since when? If that heavy arrow is spined too stiff and adversely affects your groups, then no- a heavier arrow is not more accurate. If your statement were true, why don't we all go get some 2613's with 150gr broadheads? Maybe even slide a 2214 down inside that 2613 to really weigh 'er down.[8D]

The most accurate arrow will be the one that groups best out of your bow. That will depend on your draw poundage, power stroke, cam style, nock travel, foc, arrow length, arrow spine, etc.... It is way too much of a generalized statement to just say that the heavier arrow is inherently more accurate.

RE: Correct Arrow Weight
 

I have to agree with DarrellH, tex. That 2315 is way overspine for 55 pounds and 28" draw with a 100 gn tip. You need to be looking at the 2215 instead. 2117 is also correct for you, but it's substantially heavier than your 2315. I'd be inclined to go to a 3-39 ACC, if you can afford it.

Or, for a more affordable arrow, try the GoldTip XT in 5575. It'd be fine for deer, though I'd probably go with the heft of the 2117 for anything tougher... like hogs, for instance.

RE: Correct Arrow Weight
 

Oh-oh,
I may have a problem. Since reading this I did a bit of measuring and am coming up short on my arrow weight. Can comeone tell me if I am shooting the wrong arrows?

PSE Carrera
70# draw weight
30in draw length
29in arrow
100 grain broadhead
3 blazer vanes

I come up with 349 grains - am I wrong?
According to Carbon Express the CX300 I am using is ok. They list it at 8.1 grains/inch. Blazer vanes are approximately 5grains/vane(?).

RE: Correct Arrow Weight
 

Ok. My carbon express arrows are a whopping 11.4/gr per inch. At 26.5 inches + 100gr field tip that comes to 402.1. Vanes count towards weight? If so, how much do they weigh? I'm guessing 3 to 5 gr each?

That would put me in the 420 to 428 range. Is that too heavy or a good middle ground?

RE: Correct Arrow Weight
 

In my opinion, thats a pretty good middle ground. My arrows weigh in around 445 grains, and I'm shooting 27", 55#. I was told I should keep it around 400 grains, but I am shooting consistent groups with very little drop over 10 yds... but I woods hunt, so pretty much all of my shots stay under 20 yards, that's whyI elected to go a little heavier for the added energy/penetration. I would say that's a pretty good weight for your combo, a good cross between weight and speed. And yes, depending on length and type of vane, most will run in the 3-5 gram range.

Darrell

RE: Correct Arrow Weight
 

You also have to account for weight of your insert and nock...that depends on the brand, but I would figure around 25 grams for both. That would put you around 375 grams, which is awfully light for your set-up. With a 30" draw and 70# pull, I would look for around 450-475 grains...the 375 grain set-up should fly like lightning, but your kinetic energy and penetration will suffer.

Darrell

RE: Correct Arrow Weight
 

That's right,but I don't feel like it's dangerous to shoot at5 gr per pound,but for hunting I always recommend 6 gr per pound(Most people don't like to go as light as I do)..That is a perfect blend speed and energy.I'm shooting 5.3 gr per pound,and it isn't bothering my bow.I haven't found a test animal yet,but the backyard buck has payed dearly.:D