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Interested to see what others have for input regarding the 85 grain Controlled Chaos in a 22" Bolt action 6mm ARC. Rifle barrel is a 5 land 7.5 twist Pacnor. Open to hearing experiences of others with Lehigh Defense 85 grain Controlled Chaos bullet as I have no experience thus far with any version or any caliber of the Controlled Chaos bullet.
Current best guess would be to back off at least .03 off the lands & work up with Hornady 90 gr GMX Data.
Thanks!
Last edited by Hunterapp; 07/28/22.
love, joy, peace, patience, kindness, goodness, faithfulness, 23 gentleness, self-control
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Gordon’s reloading tool. Free.
Has 6mm ARC but is skimpy on Lehigh. All powders are there, just use an 85 from one of the other manufacturers.
Swifty
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Looked in to GRT per your suggestion. Only problem is I have been a Mac user. GRR. thanks for trying. Noticed author of GRT Has passed away, RIP! Expect may result in the end of a good thing sooner than later due to lack of support. Would prefer to be wrong bout that.
love, joy, peace, patience, kindness, goodness, faithfulness, 23 gentleness, self-control
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This is the results from QL Cartridge : 6 mm ARC
Bullet : .243. 85, HV CC Copper 243085CuSP
Useable Case Capaci: 30.255 grain H2O = 1.964 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length : 22.0 inch = 558.8 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 45496 psi, or 313 MPa
or a maximum loading ratio or filling of 100 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !
131 loads produced a Loading Ratio below user-defined minimum of 85%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
IMR 3031 99.8 26.0 1.69 2822 99.6 45497 7702 1.115 ! Near Maximum !
ReloadSwiss RS 52 100.0 28.8 1.87 2805 96.0 44427 8145 1.124 ! Near Maximum !
Alliant AR-Comp *C *T 95.0 25.6 1.66 2802 100.0 45497 7104 1.115 ! Near Maximum !
Bofors RP11 TZ *C *T approximation 94.4 25.6 1.66 2802 100.0 45497 7104 1.115 ! Near Maximum !
Accurate 2495 96.9 26.4 1.71 2798 99.8 45497 7662 1.160 ! Near Maximum !
Winchester 748 91.6 27.5 1.78 2795 96.8 45497 7830 1.116 ! Near Maximum !
Hodgdon BL-C2 94.4 28.7 1.86 2792 95.7 45497 7999 1.124 ! Near Maximum !
Hodgdon CFE223 *C 99.3 30.2 1.96 2790 91.9 45497 8136 1.114 ! Near Maximum !
IMR 4895 98.5 27.5 1.78 2789 94.2 45497 8035 1.127 ! Near Maximum !
Ramshot Big Game 99.2 29.5 1.91 2787 93.5 45497 7991 1.115 ! Near Maximum !
Accurate 2520 94.8 27.9 1.81 2783 97.6 45497 7739 1.135 ! Near Maximum !
Shooters World Match Rifle 97.0 27.9 1.81 2783 97.6 45497 7739 1.135 ! Near Maximum !
Lovex D073.6 97.0 27.9 1.81 2783 97.6 45497 7739 1.135 ! Near Maximum !
Norma 203B *C 99.8 27.8 1.80 2778 94.1 45497 7935 1.128 ! Near Maximum !
Alliant Reloder-15 *C 99.2 27.7 1.79 2772 93.4 45497 7908 1.129 ! Near Maximum !
Raufoss RA11 99.2 27.7 1.79 2772 93.4 45497 7908 1.129 ! Near Maximum !
Bofors RP11 ~approximation 99.2 27.7 1.79 2772 93.4 45497 7908 1.129 ! Near Maximum !
Hodgdon H4895 95.2 26.5 1.72 2762 94.9 45497 7764 1.132 ! Near Maximum !
Ramshot Wild Boar 93.9 28.0 1.81 2759 94.0 45497 7749 1.124 ! Near Maximum !
Vihtavuori N540 *C 98.6 27.8 1.80 2756 98.1 45497 7574 1.130 ! Near Maximum !
Norma 202 *C 96.2 26.4 1.71 2756 98.3 45497 7480 1.133 ! Near Maximum !
Hodgdon H322 91.6 24.8 1.61 2756 99.0 45497 7295 1.122 ! Near Maximum !
ADI AR 2219 86.1 24.8 1.61 2756 99.0 45497 7295 1.122 ! Near Maximum !
Hodgdon H335 86.5 26.3 1.71 2755 98.2 45497 7465 1.127 ! Near Maximum !
ADI AR 2206H 95.3 26.6 1.72 2752 94.1 45497 7718 1.133 ! Near Maximum !
Somchem S321 91.0 27.3 1.77 2751 96.1 45497 7648 1.135 ! Near Maximum !
SF033 fl, russ. 5,45x39 86.4 24.6 1.60 2751 100.0 45497 6753 1.142 ! Near Maximum !
PB Clermont PCL 507 *C 92.5 26.9 1.74 2750 95.8 45497 7593 1.129 ! Near Maximum !
SNPE Vectan SP 10 85.9 25.6 1.66 2748 98.1 45497 7410 1.132 ! Near Maximum !
SNPE Vectan SP 9 96.2 27.7 1.79 2748 94.0 45497 7653 1.127 ! Near Maximum !
PB Clermont PCL 508 *C (PCL223) 85.8 25.6 1.66 2747 98.1 45497 7401 1.132 ! Near Maximum !
Lovex S062 100.0 27.1 1.76 2745 95.8 45412 7582 1.141 ! Near Maximum !
Shooters World Precision 100.0 27.1 1.76 2745 95.8 45412 7582 1.141 ! Near Maximum !
Vihtavuori N530 *C 91.6 25.7 1.66 2740 95.9 45497 7497 1.130 ! Near Maximum !
PB Clermont PCL 516 96.5 28.7 1.86 2737 91.2 45497 7660 1.126 ! Near Maximum !
Somchem S341 94.8 28.5 1.84 2736 93.8 45497 7486 1.125 ! Near Maximum !
Elcho TR140 - preliminary data 99.9 28.8 1.86 2732 91.5 45497 7601 1.131 ! Near Maximum !
Accurate 2460 89.8 27.0 1.75 2731 96.8 45497 7407 1.151 ! Near Maximum !
Lovex D073.5 90.1 27.0 1.75 2731 96.8 45497 7407 1.151 ! Near Maximum !
Norma 201 *C 96.6 26.3 1.71 2731 95.8 45497 7508 1.149 ! Near Maximum !
IMR 4320 100.0 27.4 1.78 2731 93.3 44672 7548 1.125 ! Near Maximum !
ReloadSwiss RS 40 89.3 25.4 1.65 2730 97.2 45497 7323 1.132 ! Near Maximum !
IMR 8208 XBR 93.3 26.0 1.69 2729 95.7 45497 7389 1.131 ! Near Maximum !
Hodgdon H380 100.0 28.5 1.85 2727 90.9 44339 7749 1.147 ! Near Maximum !
Alliant Reloder-10x *C 88.6 23.3 1.51 2726 100.0 45497 6878 1.144 ! Near Maximum !
Rottweil R901 94.2 25.0 1.62 2723 98.1 45497 7317 1.163 ! Near Maximum !
Rottweil R902 98.4 26.5 1.72 2722 95.8 45497 7417 1.150 ! Near Maximum !
SNPE Vectan SP 11 100.0 28.8 1.87 2722 92.4 42064 7860 1.155
Alliant Reloder-12 91.1 25.9 1.68 2721 98.9 45497 7084 1.131 ! Near Maximum !
Accurate 4064 100.0 27.3 1.77 2721 97.9 41596 7724 1.203
Lovex D073.4 88.4 26.4 1.71 2718 96.7 45497 7266 1.147 ! Near Maximum !
Shooters World AR Plus 88.4 26.4 1.71 2718 96.7 45497 7266 1.147 ! Near Maximum !
Bofors RP3 100.0 28.2 1.83 2718 94.3 41790 7832 1.177
Norma 203 old 100.0 28.2 1.83 2718 94.3 41790 7832 1.177
SNPE Vectan SP 7 94.7 28.3 1.84 2717 91.1 45497 7507 1.140 ! Near Maximum !
Accurate 2015 91.6 24.4 1.58 2714 99.9 45497 6859 1.150 ! Near Maximum !
ADI AR 2208 100.0 27.1 1.75 2712 92.8 44938 7442 1.131 ! Near Maximum !
Accurate 2230 89.3 27.0 1.75 2712 95.0 45497 7297 1.144 ! Near Maximum !
Norma 200 *C 85.0 23.2 1.50 2707 100.0 45497 6704 1.163 ! Near Maximum !
ReloadSwiss RS 50 99.7 28.9 1.87 2707 88.8 45497 7491 1.136 ! Near Maximum !
Hodgdon VARGET *T 100.0 27.0 1.75 2703 92.6 44485 7414 1.136 ! Near Maximum !
Ramshot TAC *C 92.8 27.9 1.81 2702 90.3 45497 7432 1.137 ! Near Maximum !
Ramshot X-Terminator *C 90.3 26.9 1.74 2698 93.8 45497 7275 1.139 ! Near Maximum !
ADI AR 2210 86.3 24.9 1.61 2698 96.7 45497 7104 1.137 ! Near Maximum !
Accurate 2200 92.7 26.2 1.70 2695 91.8 45497 7278 1.134 ! Near Maximum !
Bofors RP2 NT *C ~approximation 94.2 26.1 1.69 2693 94.6 45497 7146 1.133 ! Near Maximum !
Somchem S335 95.3 26.0 1.68 2688 98.9 45497 6894 1.149 ! Near Maximum !
Shooters World Tactical Rifle 87.2 25.9 1.68 2687 95.2 45497 7056 1.138 ! Near Maximum !
Shooters World Tactical Rifle 87.2 25.9 1.68 2687 95.2 45497 7056 1.138 ! Near Maximum !
Hodgdon Benchmark 91.6 25.1 1.63 2686 96.4 45497 7025 1.139 ! Near Maximum !
Vihtavuori N133 *C 96.9 24.7 1.60 2685 99.7 45497 6596 1.134 ! Near Maximum !
IMR 4198 87.2 21.8 1.41 2683 100.0 45497 6310 1.125 ! Near Maximum !
IMR 4064 100.0 26.3 1.71 2676 92.6 43358 7274 1.155
Lovex S060 94.3 25.6 1.66 2676 94.1 45497 7039 1.138 ! Near Maximum !
Vihtavuori N130 *C 90.9 23.7 1.54 2672 100.0 45497 6476 1.144 ! Near Maximum !
Alliant Reloder-17 *T 100.0 29.3 1.90 2672 90.5 38529 8131 1.195
Elcho 17 100.0 29.3 1.90 2672 90.5 38529 8131 1.195
ADI AR 2206 93.5 25.8 1.67 2668 94.7 45497 6961 1.138 ! Near Maximum !
Bofors RP7 NT *C ~approximation 100.0 28.1 1.82 2667 87.2 44401 7230 1.134 ! Near Maximum !
Alliant Reloder TS 15.5 *C *T 100.0 26.7 1.73 2666 94.9 38837 7573 1.201
Bofors RP 712 *C*T ~approximation 100.0 26.7 1.73 2666 94.9 38837 7573 1.201
Kazan Sunar 308W 86.5 23.6 1.53 2662 99.9 45497 6446 1.147 ! Near Maximum !
Somchem S355 100.0 27.3 1.77 2660 93.0 40389 7520 1.197
ReloadSwiss RS 60 *T 100.0 29.3 1.90 2653 90.8 37690 8219 1.206
Hodgdon H414 100.0 29.5 1.91 2647 84.6 39664 7691 1.188
Winchester 760 100.0 29.5 1.91 2647 84.6 39664 7691 1.188
Rottweil R903 100.0 27.6 1.79 2644 92.7 38838 7551 1.217
IMR 4007 SSC 100.0 28.3 1.83 2643 85.9 43491 7251 1.166
Vihtavuori N140 *C 100.0 26.8 1.74 2641 95.1 41626 7055 1.176
Vihtavuori N120 *C 85.2 21.7 1.41 2636 100.0 45497 5803 1.148 ! Near Maximum !
IMR 4166 Enduron *C*T 100.0 26.7 1.73 2629 87.2 44099 7001 1.157
Vihtavuori N135 *C 100.0 25.3 1.64 2617 98.6 38202 6935 1.221
IMR 4451 Enduron *C*T 100.0 27.6 1.79 2616 86.0 42000 7106 1.172
Bofors RP3 NT *C ~approximation 100.0 27.7 1.80 2603 87.8 40929 7036 1.180
Accurate 2700 100.0 29.1 1.89 2600 85.6 43969 6811 1.168
Last edited by MickinColo; 07/29/22.
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Swifty
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Excuse my ignorance, in terms of projectile speed what is KRPM?
ID expect 4350 to be way to slow same for 4831.
Hornady Data for the 80 gr GMX suggest that Hodgdon Benchmark may be near optimal in terms of velocity Thinking on the order of a 28 grain load ladder.
As for Ball powders Ramshot tac looks to offer the top velocity for the 80 GR GMX Thinking 31 grain load ladder here. If I understand correctly GRT does not allow for Ball propellants.
Must Admit I am curious about IMR 8208 XBR as well. Generally very close to H4895.
Thank you!
Last edited by Hunterapp; 07/29/22.
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love, joy, peace, patience, kindness, goodness, faithfulness, 23 gentleness, self-control
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Since you asked about a all copper bullet originally I substituted 85 grain Barnes to adjust for pressure over CC. ![[Linked Image from i.postimg.cc]](https://i.postimg.cc/HLt1MyvQ/6arc-8208.jpg) ![[Linked Image from i.postimg.cc]](https://i.postimg.cc/3RSMSHTN/6arc_Benchmark.jpg) ![[Linked Image from i.postimg.cc]](https://i.postimg.cc/sXDd4gbb/6arc_TAC.jpg) As always use caution. I ran a 8 step ladder for a reason. Start low work up.
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Swifty, thank you for your efforts.
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