Can someone with Quick Load help me out?

[Buckinrut25]

Hi guys, I need a little help and advise. Im working on a load for my custom built 243. I have narrowed my projectile to 100gr SGK.
col 2.669
Fed brass 2.045 lenth
Cci lr primer
54.4 gr of water
Imr4350.
Barrel 26 in 1-9.25
My issue is I found a good node at 40.3 gr but its slower than I like. It seems I have a node starting at 42 gr but that is my book max. If someone could run this through quick load I would sure appreciate it. I need to know if I can move up with this or is there another powder I should concider. Rifle groups .557 at 40.3 and .655 at 42
Thanks for any help.

 

[jetbrook]

Cartridge : .243 Win.
Bullet : .243, 100, Sierra SPBT 1560
Useable Case Capaci: 50.133 grain H2O = 3.255 cm³
Cartridge O.A.L. L6: 2.669 inch = 67.79 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : IMR 4350

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 78 36.00 2599 1499 35745 8212 94.7 1.537
-18.0 80 36.90 2657 1567 38074 8422 95.7 1.496
-16.0 82 37.80 2715 1637 40544 8621 96.5 1.454
-14.0 84 38.70 2772 1707 43164 8809 97.3 1.412
-12.0 86 39.60 2830 1778 45942 8984 97.9 1.372
-10.0 88 40.50 2886 1850 48889 9145 98.5 1.334
-08.0 90 41.40 2943 1923 52015 9293 99.0 1.297 ! Near Maximum !
-06.0 92 42.30 2998 1996 55331 9427 99.4 1.262 ! Near Maximum !
-04.0 94 43.20 3054 2071 58852 9545 99.7 1.228 ! Near Maximum !
-02.0 96 44.10 3108 2145 62590 9647 99.9 1.196 !DANGEROUS LOAD-DO NOT USE!
+00.0 98 45.00 3162 2221 66562 9734 100.0 1.164 !DANGEROUS LOAD-DO NOT USE!
+02.0 100 45.90 3216 2296 70784 9804 100.0 1.134 !DANGEROUS LOAD-DO NOT USE!
+04.0 102 46.80 3269 2372 75276 9869 100.0 1.105 !DANGEROUS LOAD-DO NOT USE!
+06.0 104 47.70 3321 2449 80059 9932 100.0 1.076 !DANGEROUS LOAD-DO NOT USE!
+08.0 106 48.60 3373 2526 85155 9992 100.0 1.049 !DANGEROUS LOAD-DO NOT USE!
+10.0 108 49.50 3424 2603 90592 10048 100.0 1.023 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 98 45.00 3263 2364 77492 9390 100.0 1.092 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 98 45.00 3014 2017 55669 9843 97.5 1.259 ! Near Maximum !

 

[jetbrook]

28 loads produced a Loading Ratio below user-defined minimum of 90%. 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
--------------------------------- -----------------------------------------------------------------
Alliant Reloder-26 95.8 47.6 3.08 3118 100.0 52667 10758 1.291 ! Near Maximum !
Norma MRP 96.4 46.5 3.01 3090 99.5 52667 10834 1.288 ! Near Maximum !
ReloadSwiss RS 70 93.3 45.9 2.98 3080 99.8 52667 10524 1.273 ! Near Maximum !
Vihtavuori N560 98.0 46.3 3.00 3078 97.1 52667 10996 1.283 ! Near Maximum !
IMR 7828 SSC 96.8 46.0 2.98 3066 97.6 52667 10678 1.273 ! Near Maximum !
Accurate MAGPRO 98.4 48.3 3.13 3063 95.8 52667 11016 1.293 ! Near Maximum !
Alliant Reloder-22 98.2 45.9 2.97 3057 98.7 52667 10625 1.290 ! Near Maximum !
Raufoss RA15 98.2 45.9 2.97 3057 98.7 52667 10625 1.290 ! Near Maximum !
Bofors RP5/NP ~approximation 98.2 45.9 2.97 3057 98.7 52667 10625 1.290 ! Near Maximum !
ADI AR 2213 97.7 45.6 2.96 3051 97.4 52667 10566 1.271 ! Near Maximum !
Ramshot Magnum 98.6 49.6 3.22 3037 99.2 52667 10206 1.285 ! Near Maximum !
SNPE Vectan SP 12 100.0 49.3 3.20 3036 97.8 50495 10762 1.303
Winchester WXR 100.0 45.7 2.96 3031 98.3 51344 10568 1.305 ! Near Maximum !
Bofors RP15 100.0 45.7 2.96 3031 98.3 51344 10568 1.305 ! Near Maximum !
PB Clermont PCL 517 100.0 49.3 3.20 3030 97.6 50199 10764 1.306
Alliant Reloder-16 92.0 41.4 2.68 3021 100.0 52667 9493 1.296 ! Near Maximum !
Rottweil R905 99.4 45.6 2.95 3020 97.0 52667 10324 1.290 ! Near Maximum !
Alliant Reloder-23 100.0 45.2 2.93 3019 100.0 51552 9648 1.308 ! Near Maximum !
ADI AR 2209 94.5 43.4 2.81 3019 98.4 52667 10074 1.276 ! Near Maximum !
Alliant Reloder-19 94.8 43.8 2.84 3013 98.5 52667 10108 1.286 ! Near Maximum !
Ramshot Hunter 90.5 43.2 2.80 3012 99.8 52667 9842 1.293 ! Near Maximum !
Somchem S365 92.1 42.4 2.74 3009 100.0 52667 9172 1.302 ! Near Maximum !
Bofors RP14 ~approximation 95.5 44.1 2.86 3006 98.4 52667 10033 1.287 ! Near Maximum !
Norma URP 90.0 41.1 2.67 2996 100.0 52667 9458 1.298 ! Near Maximum !
Bofors RP19 ~approximation 90.0 41.2 2.67 2996 100.0 52667 9456 1.298 ! Near Maximum !
IMR 7828 100.0 44.9 2.91 2992 96.6 48787 10474 1.318
Bofors RP4 ~approximation 92.9 42.9 2.78 2991 98.2 52667 9859 1.286 ! Near Maximum !
Raufoss RA4 92.9 42.9 2.78 2991 98.2 52667 9859 1.286 ! Near Maximum !
Hodgdon H4831 SC 96.2 45.0 2.91 2986 96.7 52667 9940 1.284 ! Near Maximum !
Hodgdon H4831 100.0 44.9 2.91 2982 96.7 52437 9929 1.287 ! Near Maximum !
ADI AP 2214 100.0 48.0 3.11 2980 97.0 49497 10304 1.309
Somchem S385 95.1 44.4 2.88 2977 99.1 52667 9692 1.310 ! Near Maximum !
IMR 4831 94.5 41.8 2.71 2976 100.0 52667 9253 1.309 ! Near Maximum !
Bofors RP5 NT ~approximation 100.0 47.1 3.05 2976 94.9 50959 10225 1.297
Alliant Reloder-25 100.0 46.0 2.98 2971 99.8 46050 10298 1.358
Bofors RP4 NT ~approximation 90.6 42.5 2.76 2970 99.3 52667 9538 1.300 ! Near Maximum !
Accurate 3100 98.4 45.5 2.95 2966 99.8 52667 9473 1.327 ! Near Maximum !
Winchester Supreme 780 93.9 45.8 2.97 2966 98.4 52667 9624 1.294 ! Near Maximum !
Rottweil R904 93.6 42.7 2.76 2961 97.4 52667 9596 1.288 ! Near Maximum !
Hodgdon Hybrid 100V 92.5 41.4 2.68 2957 100.0 52667 8730 1.298 ! Near Maximum !
Vihtavuori N165 100.0 45.7 2.96 2953 98.8 52196 9446 1.304 ! Near Maximum !
Vihtavuori N160 100.0 44.3 2.87 2941 97.3 52610 9408 1.294 ! Near Maximum !
Somchem S361 92.7 45.7 2.96 2923 96.7 52667 9369 1.304 ! Near Maximum !

 

[dsculley]

If you have a good node at 40.3, try working around 41.5 and see what you get. While developing and working working with the OCW process, Dan Newberry found that nodes tend to be about 3% apart. Your 40.3 x 1.03 = 41.5. If this works you won't have to go over book max. Additionally, that point to ~ 42.7/42.8 for the next node.

FWIW,

 

[MarkA]

Your seeing same thing I hit with H4350 and 95 Nosler Ballistic tip.

Best load for me is
2.665 OAL
39 grains H4350
2850fps in 20" barrel

IMR4350 is hard to beat and never discount .5 - .6 groups with hunting bullet.

In your 26 inch barrel you should see optimum barrel times at 1.329ms and 1.19ms.

Your 40.3 load is on the 1.329ms node but you may not quite make it to the 1.19ms which would be at 44.1 grain node (3108fps) per Quickload above. Use chrono to help see if you can get there (3100) with less powder.

You didn't state what speed your at? With a 26" barrel you can get to 3,000fps with good temp stabilty with H4831SC if you want to test.

 

[Buckinrut25]

Thank you for the replies. I usually do not run a crony when doing OCW test. It keeps from chasing velocity instead of accuracy. It looks like reloader 26 will be a good powder to give a go. It seems to have the speed and correct barrel time. I will pick some up this week and give it a try. Thanks again for taking the time to run through quick load for me. I'll follow up with my results.

 

[MarkA]

Thank you for the replies. I usually do not run a crony when doing OCW test. It keeps from chasing velocity instead of accuracy. It looks like reloader 26 will be a good powder to give a go. It seems to have the speed and correct barrel time. I will pick some up this week and give it a try. Thanks again for taking the time to run through quick load for me. I'll follow up with my results.

With every caliber I have shot RL26 it performed best with magnum primer, even in the smaller charge weights, like it craves fire. FWIW