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  • Arrow weight?

    What's a good all around weight for AK? I'm shooting a Z7 @ 70lbs and a 28" DL. I'm going to have some new arrows made and I'm looking for a good weight for all species up here. I plan to shoot field tips through a chronograph after I pick an arrow to figure out KE for 100gr points and 125gr points, but I want to make sure I start in the right ballpark when picking arrows.

    Any input is greatly appreciated...
    Originally posted by AGL4now
    Discovered that prayer helps sometimes. Also what a penis sheath looks like a few inches from my forehead.

  • #2
    i am shooting a z7extreme 74# 29in draw and a 430gr. arrow and that should be good for everything.

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    • #3
      Anything in the 400 to 500 grain range is going to work. I hunt with a 420 grain arrow.
      Bunny Boots and Bearcats: Utility Sled Mayhem

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      • #4
        I was thinking 400ish, good to know. Thanks!
        Originally posted by AGL4now
        Discovered that prayer helps sometimes. Also what a penis sheath looks like a few inches from my forehead.

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        • #5
          my hunting arrows are usually 390 ish. I shoot 100 grain tips. right around 400 grain is a good rule of thumb. I dont mind staying on the lighter side of it to pick up some speed. A lot of times in a hunting situation you range the critter but before you get the shot off he takes a few steps....sometimes you dont get the opportunity to range...the extra speed gives me a little more forgiveness if i am a coule yards off on the distance i shoot it for. I know of guys with short draw lengths that hunt with 350 grain arrows....and they kill whatever they shoot. It is all about finding that balance of speed and kinetic energy...but remember accuracy and shot placement RULES!!!! A 7mm-08 with a 140 grain bullet will kill a moose or bear just as dead as a 375H&H,,,,with the right shot placement. A 400 grain arrow going about 270 to 280 fps is like the good ole 30-06......a great choce that will get it done with vitually any animal in North America. A 430 grain arrow going 320 fps out of a Monster bow at 70+ pounds is like the 340 Weatherby...lol a lot more energy and speed...not as comfortable to draw..and you may give up some accuracy shooting a large magnum....

          just my opinion and sorry for the poor analogy. Harry

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          • #6
            I'm thinking if I can stay right at 400 and get close to 300fps, I should have the best of both worlds. I'm thinking the KE will be there and it's light enough to be forgiving. Thoughts?
            Originally posted by AGL4now
            Discovered that prayer helps sometimes. Also what a penis sheath looks like a few inches from my forehead.

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            • #7
              My only thoughts are...don't get hung up on speed. Take two bows both shooting the same size arrows. One shoots 250 FPS, the other 300 FPS. Both guys judge a target at 40 yards when it's actually 45 yards. The 250FPS guy will hit 6.4 inches low...the 300 FPS guy will drop 4.29 inches. A difference of a whopping 2.1 inches. I don't know many guys that can even hold +/- 2" at 45 yards. Speed doesn't mean a hill of beans and it's a marketing ploy. Bows pushing over 300 fps are harder to tune and harder to shoot for new archers. Stick around 260, shoot the heaviest arrow you can get to get your bow down to 260fps and you will find it much easier to tune for broadheads and much more forgiving to small form changes.
              Bunny Boots and Bearcats: Utility Sled Mayhem

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              • #8
                You should have no problem 300 fps with a 400 gr. arrow@ 70lbs. Just remember that a lighter arrow will shoot faster at the bow but slows down a lot faster down range compared to the heavier arrow. If you go with a 400 gr. arrow and want more penetration for a brown bear just make sure you are shooting a good 2 blade broadhead.

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                • #9
                  I shoot a 29.5" 460 grain Carbon Express at about 280 fps. I buy into the theory that "heavy" is more important than "fast" for big AK sized game.

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                  • #10
                    Take a look at arrow momentum

                    I read an interesting thread on another site speaking to momentum in units of slug feet as the true measure of penetration power of an arrow.

                    It changed my thinking about speed/energy and shifted my focus to attaining momentum.

                    Based on that, I have decided to build some 505gr arrows for my Katera at 70lbs & 29".

                    The Archer's Advantage software I used to come up with that combo estimates the speed on that arrow out of my setup to be about 277 f/s. with a momentum of .607 slug*ft/s (KE - 82.5 ft/lbs) at 45yds. I am looking forward to shooting one of them through a crono to double check the software.

                    Here is the link to the Momentum/KE information: http://archeryreport.com/2009/11/arr...mentum-archer/

                    If folks who are better at math and physics than I am could take a look to see that its correct, that would be great.


                    If all of the math is correct...that arrow should be a freight train.

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                    • #11
                      Wow...a very complex physics proposition it seems

                      http://www.physicsforums.com/showthr...=195119&page=2

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                      • #12
                        This page might help you out figuring arrow weights with everything considered.

                        http://www.huntersfriend.com/carbon_..._chapter_4.htm

                        Its not bad info for those interested, but their calculator only uses arrows they sell. There are some good charts on their website too. Hope this helps.

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                        • #13
                          Originally posted by AKbowhunter View Post
                          my hunting arrows are usually 390 ish. I shoot 100 grain tips. right around 400 grain is a good rule of thumb. I dont mind staying on the lighter side of it to pick up some speed. A lot of times in a hunting situation you range the critter but before you get the shot off he takes a few steps....sometimes you dont get the opportunity to range...the extra speed gives me a little more forgiveness if i am a coule yards off on the distance i shoot it for. I know of guys with short draw lengths that hunt with 350 grain arrows....and they kill whatever they shoot. It is all about finding that balance of speed and kinetic energy...but remember accuracy and shot placement RULES!!!! A 7mm-08 with a 140 grain bullet will kill a moose or bear just as dead as a 375H&H,,,,with the right shot placement. A 400 grain arrow going about 270 to 280 fps is like the good ole 30-06......a great choce that will get it done with vitually any animal in North America. A 430 grain arrow going 320 fps out of a Monster bow at 70+ pounds is like the 340 Weatherby...lol a lot more energy and speed...not as comfortable to draw..and you may give up some accuracy shooting a large magnum....

                          just my opinion and sorry for the poor analogy. Harry
                          I thought it was a great analogy!!! Good job explaining that.

                          Comment


                          • #14
                            let me know how that works out spartan gunner it says my momentum is .573 and 85.9ke

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                            • #15
                              I prefer shooting a heavier arrow I dont care to much about how fast the arrow fly's as long as it fly's true and straight. I shoot a hoyt at 58 lb with 2315 30 inch (yes I am an aluminum guy) with a 125 grain tip, and I have killed moose. griz, and caribou

                              My recurve 51 lb black widow 30 inch carbon express, 100 grain brass insert 125 grain tip right around 550 grains and hits like a brick

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