Hunting Washington Forum

Big Game Hunting => Bow Hunting => Topic started by: huntnfmly on May 06, 2014, 06:52:57 PM

Title: 50 grain difference
Post by: huntnfmly on May 06, 2014, 06:52:57 PM: I have 405 grain cx maxima reds and was wondering if i gain much more penetration going about 50 grains more ? Z7 60lb 29 in.draw and 29 in arrows. Thanks in advance
Title: Re: 50 grain difference
Post by: Rider on May 06, 2014, 08:45:29 PM: How much penetration do you need to make a kill shot?
Title: Re: 50 grain difference
Post by: et1702 on May 06, 2014, 08:52:54 PM: I'd recommend as heavy a setup as you are comfortable shooting. I shoot my arrows at a total weight of 550gr, with a 150gr BH. You won't notice as much drop as you might think. The arrow will have more momentum, which means it will retain downrange speed and energy.

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Title: Re: 50 grain difference
Post by: et1702 on May 06, 2014, 08:57:45 PM: Also, if you design your arrows with 12% to 18% FOC, you will notice much better flight and greater penetration too. Just make sure you use a quality BH with extremely sharp blades and your final setup will do it's job if you do yours

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Title: Re: 50 grain difference
Post by: RadSav on May 06, 2014, 09:29:57 PM: Which Z7 do you have?
Title: Re: 50 grain difference
Post by: RadSav on May 06, 2014, 09:48:29 PM: Quote from: huntnfmly on May 06, 2014, 06:52:57 PM
I have 405 grain cx maxima reds and was wondering if i gain much more penetration going about 50 grains more ?

If shooting the original Z7 you will see about 2% additional energy at five yards adding the 50 grains. Or about half (50%) the energy of a .22 Long Rifle at the same distance. ;) So instead of your arrow going 10 yards after penetrating the deer it now goes about 10 yards 7 inches past the deer :chuckle:

I agree with et1702 that over 12% FOC you will notice much better flight. And make sure those broadheads are extremely sharp! Those two things are WAY more important than energy!
Title: Re: 50 grain difference
Post by: coachcw on May 07, 2014, 06:25:00 AM: from a guy that used to shoot 90lbs and 750 grain arrows Id suggest not going heavier as long as your foc is good . With the weight forward design and 100 grain bh's you should be fine . If you add fifty more grains with that poundage my bet is she falls off the table down range . you can run a chronograph test with different weights and see where the magic spot is for Ke . but my guess is your pretty close . :twocents:
Title: Re: 50 grain difference
Post by: xXLojackXx on May 07, 2014, 07:19:14 AM: I wouldn't go much heavier at 60 lb draw weight. Shoot your Reds and a shaving sharp Broadhead and you'll do fine. Is crank those limbs down to 70 lbs if you go with a 50 grain addition.
Title: Re: 50 grain difference
Post by: huntnfmly on May 07, 2014, 04:18:08 PM: thanks for the replies guys I appreciate it.
Title: Re: 50 grain difference
Post by: huntnfmly on May 07, 2014, 06:43:12 PM: I just figured out my foc is 12.87