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200 accubond .300 wby recipe

 
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  #8  
Old 03-25-2008, 05:31 AM
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Quote:
Originally Posted by lamiglas View Post
I loaded a 200 gr accubond loosley in the case at 3.890. this was plenty to long for the magazine but I wanted to check on the freebore issue. I painted the bullet with a black sharpie and chambered the round. it didnt touch the lands and it didnt seat the bullet any further. can i assume then that it has freebore? In the past I have used the speer manual and only loaded to their "col tested at". In the speer manual it has a different max for each bullet type/weight and for the 200 grain bullet it lists 3.560. nosler information I read only gives one col not specific for bullet type/weght, and the hodgon website shows a col for the 200 gr accubond at 3.590. in addition to this info, kraky1 mentioned starting at max magazine length and going from there. kraky1, does this mean up to the point of the 3.590, or do you not worry about listed max col's? can going outside of listed col's cause pressure danger? so far the load I am working on is a 200 gr accubond, retumbo powder in 1/2 grain increments starting at 79 grains. the only left to determine is a col? any additional info on safety, accuracy etc, as it pertains to col in a freebore chamber is greatly appreciated.

Thanks again.
Don't bother with what the manuals recommend on COL,except when a particular bullet is SHORT in length,then you will need to seat it at least ONE CALIBRE into the neck;.308".
Otherwise,just seat your bullets just shy of the end of your magazine,and you should be good to go.
Of course others will say to juggle seating depths to tune for accuracy,and rightly so,but with the 300 Weatherby,I have never found it to make much difference,it's pretty accurate as long as you 'tune' your loads for it.
You will be quite safe as long as you adhere to the loads in most MODERN manuals,freebore actually LESSENS pressure,so you can use larger 'doses' of powder,within limits of course,this is why Roy Weatherby used 'freebore',to get the highest possible velocity from his cartridges.
MagnumManiac
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  #9  
Old 03-25-2008, 02:09 PM
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Thank you, your responses have helped me to better understand this issue. I have always tried to stay within referenced guidelines, so seating beyond the max col listed concerned me, but after researching and reading your responses I am no longer concerned about it. because I have freebore, I cant use the lands as a reference so I will do as suggested and start just shy of magazine length and go from there.
thanks again guys, this site is invaluable!
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  #10  
Old 03-25-2008, 02:09 PM
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Thank you, your responses have helped me to better understand this issue. I have always tried to stay within referenced guidelines, so seating beyond the max col listed concerned me, but after researching and reading your responses I am no longer concerned about it. because I have freebore, I cant use the lands as a reference so I will do as suggested and start just shy of magazine length and go from there.
thanks again guys, this site is invaluable!
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  #11  
Old 03-25-2008, 09:40 PM
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Sorry about the double post. I loaded up several rounds starting at 80 grains, in 1/2 grain increments on up to 84 grains. The bullet is seated to 3.595 and when I seated the 84 grain version I could hear powder compress. is this okay? sorry for all of the newbie type questions!

Bill
Rathdrum Idaho
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  #12  
Old 03-26-2008, 06:19 PM
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You should be good to go....

Do you have a chrono to watch the velocity as you go up in powder?

AND..out of curiosity what brand of brass are you loaded with??

I think you'll want to stop somewhere in the 3000-3050 area. In my gun thats where I was at with 86.0 of retumbo-----but all guns are different. Funny thing about retumbo...it seems to kind of squeak as it gets compressed instead of crunching....at least mine did. I once pulled some bullets that had highly compressed retumbo and found that I had a heck of a time shaking the powder out....it had kind of packed into a wad.
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  #13  
Old 03-26-2008, 09:28 PM
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Join Date: Mar 2008
Location: Omaha,NE
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Retumbo and RL-22 are going to be the best powders to use with bullets heavier then 165 grains (atleast they are with mine). Mine likes the 86gr of Retumbo and the 200gr Accubond as well.

I will be concentrating solely on the Barnes TSX from now on after getting the performance I did this fall.I will post results after I finally tune in the load.

As far as finding COAL, just seat to the length of your magazine and call it good. You can adjust the powder amount to fine tune it.

Tim
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