i've ordered myself a bob lee t/d recuve.55# & 70# limbs. i'm currently doing some sums with potential arrow weights for the 70#er for use on buffs. i'm thinking g/tip 55/75 with 250gr b/head and either 100gr insert+ 5gr/" wt tube or 100gr insert+ 8gr/" wt tube for 756gr and 842gr respectively. any of these look conducive to success on buffs? any other suggestions?

I would think that the 842gr ones would work well.  Joseph

if you put a 250gr BH + a 100gr insert, I fear your 55/75 (spine:.400) should be too weak for a 70# recurve...

yeah i thought that too. i'll get a couple of 55/75's and a couple of 75/95's and see what happens. that #age could be +/- a couple of #'s. any one used a blackstump b/head or a magnusII 2 blader to take a buff?

I believe Paul Brunner used the Magnus II for both his Cape Buffalo and Oz Buff.

For the 70# limbs you will want more spine, probably the 75/95 with 350gr up front.

Danny

Unless you pack your shelf out, the only carbons you have available are Grizzlystiks or GoldTips. With the GoldTips, you will have to utilise the rear weight loading system (available from Black Widow) in order to not only get enough weight up front, but to ensure that it flies well bareshaft.

I do not think you will need the weight ading system for the GTs. You can use 100 grain grass insert and 125  grain BH adapter and than a head anywhere from 125 to 200 grains to get ya to 350 and beyond. Shawn

Nope won't work, listen to Ben, he's been there done that. I recommend a minimum of 900 grains for buff arrows and that is with the arrow flying perfectly and the right head. Imo 70#'s is right at the mimimum for buff, so you need to have your arrow perfect. The only GT that you have a chance with is the Big Game 100+, I shoot them out of my 73# Black Widow, cut to 30.5" AND I still have to use the weight system to get enough spine and even at that they only come out to a little over 700 grains. I'm not really fond of using the rear weights on super tough animals like water buff, since I think they increase flex in the shaft upon impact and impede penetration. Weight tubes will add weight, but they also reduce spine. You can go with the heavy Grizzlystiks, but they will be a bit low on the weight side. You didn't say what your draw length is, but if is shorter than mine, you may be able to get by with a weighted GT 100, otherwise your options are a heavy wood shaft or a duplex, shaft inside a shaft.

Rick knows for sure!! How about a fish arrow? Solid fiberglass and they must way over 11-1200 grains. Shawn

draw length is 26"

I recommand you the new 75-90 carbon express with a 100gr insert and 300gr grizzly BH (125gr steel insert)...you will get a very strong heavy arrow especially if you put a weight tube inside it...and the spine will be good..

Shawn, fish arrows do come out to about 1200 grains, but the spine is only about 55#'s and you have to sort through hundreds to get a dozen really straight ones.
Ozy, with your shorter arrow, you may be able to get the GT 100 up to a good weight with tubes and tip weight, although I wouldn't count the rear weights out. How much are you going to hunt buff? If its a one time thing, I think I would get some hardwood(like ipe) or laminated birch shafts. If its more than once and the 100's don't work out, its going to be some work!

do you think that the length of the 100gr insert will reduce the arrows working length enough to offset some of weakening effect of its weight? how about a footing to reduce the arrows flexible length? i know that my minimum arrow length is 29" that acts in my favour here i suppose. both in spine and EFOC. i may be moving to nhulunbuy to live so i may be encountering a few of these things.

Clint,

The setup you're describing is close to what I normally shoot.  In my case it's a 70# at 29 draw ACS-CX longbow which is center cut.  
The arrow weighs 815 grains total weight. The arrow is an Easton Axis 340 arrow and is selected initially to be over spined for my equipment setup. I put a 100 grain brass HIT insert (rather than the standard 16 grain aluminum that comes with Axis arrows) on the inside of the arrow. On the outside of the arrow I glue up a 3 inch section of a Easton 2016 (35 grains) arrow to "foot" the arrow for added strength at the point of weakness on any carbon arrow, that being the point to which the broadhead fastens to the arrow. The footing completely encases the HIT insert and the broadhead threads. All glueing is done with JB Weld epoxy. Then the 2 blade Grizzly Grande 190 grain is glued to a 125 grain tapered insert, for a total broadhead weight of 315 grains. So, at the business end of that arrow I'll have a 315 grain broadhead, 100 grain insert and 35 grain "footing" for a total of 450 grains hanging off the first 3 inches of the arrow shaft. The added weight the to front end of the arrow "weakens" the spine sufficiently such that the formerly overspine arrow is now back in line with a balanced and matched bow/arrow combination. More that half the weight of the arrow is contained within the first 3 inches of the arrow. At the moment of impact, particularly with heavy bone, that arrow is not flexing much at all, which of course aids penetration.

With this arrow (using a similar weight field point) and my bow I can drive it through the cell portion of a cement block without visible damage to the arrow and reshoot the arrow with only a flattening of the field tip.

If you need more weight and/or spine the Axis also comes as a 300 model which is slightly heavier and stiffer.  For my "Heavy arrows" I use an Axis 300 shaft, keep the shaft full length of 32 inches, throw in a second 100 grain brass insert behind the first brass HIT insert and you can make a slightly longer external footing.  That formula will get the arrow weight up to the neighborhood of 950 grains.  But for me hunting in North America for bear and elk the 815 grain arrow is plenty heavy to suit my personal needs.

Mike our Deer only weight in at maybe 125#  lol

Is there a Club Car on that Train......

Hope we get to shoot together soon.

Mark

Mark,

That's why God made the Texas Heart shot.....hmmmm.    

Actually, I don't do much in the way of chasing around those So Cal Bambi's too much.  I'll hit you w/ a PM tonight, show my most recent victim, errr, Big Game species....

I have a longbow and I'm debating whether or not to just buy broadheads or to try to find flint in pennslyvannia in pittsburgh or to buy flint and then buy the tools and then learn to flintknap then make my own arrow heads
i'm not sure what to do can someone help me  

I've got a pile of 75/95 GT trads that aren't working so well out of my 63# widow.  Haven't tried them out of the 71# CK H2 yet, but if your interested in a dozen I could send em cheap ....  PM if you'd like. You're more than welcome to a dozen. (with 100 gr brass inserts and all)