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200 gr accubound retumbo 300 rum

 
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  #8  
Old 05-14-2007, 05:57 PM
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Re: 200 gr accubound retumbo 300 rum

Stay with the 94gr. charge with Retumbo. If you press it past that you will open the primer pockets pretty quick and have to chunk the brass.

At 94gr. of Retumbo, the 210Vld was 3100 out of my Sendaro. The 200 Nosler was 3263,3267,3261 dirty barrel and 3190,3196,3197 with clean barrel using 91.5 of RL-25. Keep in mind that the RL-25 is very very temp sensitive down here where we are.

Tim
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  #9  
Old 05-14-2007, 06:37 PM
POP POP is offline
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Re: 200 gr accubound retumbo 300 rum

Cartridge : .300 Rem Ultra Mag
Bullet : .308, 200, NOS AccuBond 54618
Cartridge O.A.L. L6: 3.720 inch or 94.49 mm
Barrel Length : 26.0 inch or 660.4 mm
Powder : Hodgdon Retumbo

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 80 75.20 2520 2821 31981 11646 99.4 1.729
-18.0 82 77.08 2582 2961 34231 11871 99.8 1.684
-16.0 84 78.96 2643 3102 36641 12060 100.0 1.640
-14.0 86 80.84 2703 3245 39229 12217 100.0 1.589
-12.0 88 82.72 2763 3389 42005 12366 100.0 1.539
-10.0 90 84.60 2821 3534 44987 12512 100.0 1.490
-08.0 92 86.48 2879 3681 48192 12655 100.0 1.444
-06.0 94 88.36 2936 3828 51637 12795 100.0 1.399
-04.0 96 90.24 2993 3977 55312 12930 100.0 1.356 ! Near Maximum !
-02.0 98 92.12 3049 4128 59220 13062 100.0 1.316 ! Near Maximum !
+00.0 100 94.00 3104 4280 63392 13190 100.0 1.276 ! Near Maximum !
+02.0 102 95.88 3160 4433 67848 13314 100.0 1.238 !DANGEROUS LOAD-DO NOT USE!
+04.0 104 97.76 3214 4588 72611 13433 100.0 1.202 !DANGEROUS LOAD-DO NOT USE!
+06.0 106 99.64 3269 4745 77707 13548 100.0 1.167 !DANGEROUS LOAD-DO NOT USE!
+08.0 108 101.52 3323 4904 83164 13659 100.0 1.133 !DANGEROUS LOAD-DO NOT USE!
+10.0 110 103.40 3377 5066 89013 13765 100.0 1.101 !DANGEROUS LOAD-DO NOT USE!
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  #10  
Old 05-14-2007, 07:42 PM
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Location: corpus christi tx
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Re: 200 gr accubound retumbo 300 rum

thanks pop thats really helpfull going to get a chrono in the near future when my father gets back from vaction where going to order some stuff chargemaster chrono and some other stuff. Tim i'll back it off to 94 till i get the chrono and see what its actually doing . Im not to worried about brass as long as i get 2or3 loads per case i'll be happy i look at like when i use to build and race mopars and peaple would ask how i could afford to spend 6 dollors a gallon on 112 octane race gas and i'd tell um if i was worried about the cost of fuel i wouldnt of built it [img]/ubbthreads/images/graemlins/grin.gif[/img] but i will back it off for safety reasons thanks for all the info
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  #11  
Old 05-15-2007, 08:15 AM
POP POP is offline
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Join Date: Jul 2001
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Posts: 1,364
Re: 200 gr accubound retumbo 300 rum

[ QUOTE ]
thanks pop thats really helpfull going to get a chrono in the near future when my father gets back from vaction where going to order some stuff chargemaster chrono and some other stuff. Tim i'll back it off to 94 till i get the chrono and see what its actually doing . Im not to worried about brass as long as i get 2or3 loads per case i'll be happy i look at like when i use to build and race mopars and peaple would ask how i could afford to spend 6 dollors a gallon on 112 octane race gas and i'd tell um if i was worried about the cost of fuel i wouldnt of built it [img]/ubbthreads/images/graemlins/grin.gif[/img] but i will back it off for safety reasons thanks for all the info

[/ QUOTE ]

Remember now, quick load is not a panacea! It is just a reference to let you know you're doing. 94 sounds really good to me. That is waht I was shooting BTW.
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