8208 XBR

skidmark

skidmark

Beginner
Oct 27, 2013
240
2
With my supply of Varget on the decline and no replacement
in sight I jumped on a jug of 8208 XBR for my .308.
I see the data listed from IMR can anyone give me the heads
up on this new powder for me ? I use 165 and 168's. Thanks in advance. Skid
 
I am told its very very close to the old AR2206, which was discontinued in favour of the current AR2206H which is then rebranded to H4895.

AR2206 was widely regarded as the best powder for the 308 Win bar none in this country. I reloaded my 308 for many years using this powder with bullets from 130 to 180g.

If it really is a reinvention of AR2206, you have got yourself a fine solution for your 308.
 
It has saved the day on several .308s for which I loaded. I got some of the tightest groups ever with IMR 8208 XBR.
 
DrMike
Have you tried 8280 in smaller 35 cartridges? I load the 35 rem, 358 Win, and soon the 35 Whelen. H4895 or TAC works in the smaller two, but using just one powder for all three would be nice. After that I have a 223rem(benchmark) and 221rem (h4198) and in a pinch it may work fine for them too.
 
Maybe one of you fine people could run QL for 168 SMK's
and 165 SGk's with 8208XBR for me. Thanks
 
I assume you want it for a .308 with a 22 inch barrel.

Cartridge : .308 Win. (SAAMI)
Bullet : .308, 168, Sierra HPBT MatchK 2200 G7Litz
Useable Case Capaci: 48.726 grain H2O = 3.164 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 8208 XBR

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 35.12 2217 1833 33289 6630 94.2 1.409
-18.0 80 36.00 2267 1917 35391 6809 95.1 1.374
-16.0 82 36.88 2317 2002 37618 6981 95.9 1.339
-14.0 84 37.75 2366 2089 39977 7146 96.6 1.301
-12.0 86 38.63 2416 2177 42477 7302 97.3 1.265
-10.0 88 39.51 2465 2267 45127 7451 97.9 1.230
-08.0 90 40.39 2514 2358 47936 7589 98.4 1.197
-06.0 92 41.27 2563 2450 50915 7719 98.9 1.165
-04.0 94 42.14 2611 2543 54075 7838 99.2 1.134 ! Near Maximum !
-02.0 96 43.02 2659 2638 57429 7947 99.5 1.104 ! Near Maximum !
+00.0 98 43.90 2707 2733 60992 8045 99.8 1.076 ! Near Maximum !
+02.0 100 44.78 2754 2830 64778 8132 99.9 1.048 !DANGEROUS LOAD-DO NOT USE!
+04.0 102 45.66 2801 2927 68805 8207 100.0 1.021 !DANGEROUS LOAD-DO NOT USE!
+06.0 104 46.53 2848 3025 73091 8271 100.0 0.996 !DANGEROUS LOAD-DO NOT USE!
+08.0 106 47.41 2894 3124 77659 8332 100.0 0.971 !DANGEROUS LOAD-DO NOT USE!
+10.0 107 48.29 2940 3224 82530 8390 100.0 0.947 !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 43.90 2799 2923 71493 7739 100.0 1.009 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 98 43.90 2573 2470 50668 8070 96.3 1.163

Cartridge : .308 Win. (SAAMI)
Bullet : .308, 165, Sierra SPBT 2145 G7 Litz
Useable Case Capaci: 49.126 grain H2O = 3.190 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 8208 XBR

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 35.20 2221 1808 32609 6625 93.7 1.409
-18.0 80 36.08 2272 1891 34658 6807 94.6 1.374
-16.0 82 36.96 2322 1976 36828 6983 95.4 1.340
-14.0 84 37.84 2372 2062 39127 7152 96.2 1.302
-12.0 85 38.72 2422 2149 41562 7313 96.9 1.266
-10.0 87 39.60 2472 2238 44142 7466 97.6 1.231
-08.0 89 40.48 2521 2328 46877 7609 98.1 1.198
-06.0 91 41.36 2570 2420 49775 7744 98.6 1.166
-04.0 93 42.24 2619 2513 52849 7869 99.0 1.135 ! Near Maximum !
-02.0 95 43.12 2667 2607 56111 7983 99.4 1.105 ! Near Maximum !
+00.0 97 44.00 2715 2702 59573 8087 99.6 1.077 ! Near Maximum !
+02.0 99 44.88 2763 2798 63251 8180 99.8 1.049 !DANGEROUS LOAD-DO NOT USE!
+04.0 101 45.76 2811 2894 67161 8262 100.0 1.022 !DANGEROUS LOAD-DO NOT USE!
+06.0 103 46.64 2858 2992 71321 8332 100.0 0.997 !DANGEROUS LOAD-DO NOT USE!
+08.0 105 47.52 2904 3091 75750 8393 100.0 0.972 !DANGEROUS LOAD-DO NOT USE!
+10.0 107 48.40 2951 3190 80472 8451 100.0 0.948 !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 97 44.00 2811 2895 69861 7791 100.0 1.010 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 97 44.00 2578 2436 49475 8076 95.9 1.166
 
tjen":2sjm970k said:
DrMike
Have you tried 8280 in smaller 35 cartridges? I load the 35 rem, 358 Win, and soon the 35 Whelen. H4895 or TAC works in the smaller two, but using just one powder for all three would be nice. After that I have a 223rem(benchmark) and 221rem (h4198) and in a pinch it may work fine for them too.
Click to expand...

I have not tried 8208 XBR in smaller 35 cartridges. I should think it would work quite well with the 200 grain AB in the .358, however.

Cartridge : .358 Win.
Bullet : .358, 200, Nosler AccuBond 54425
Useable Case Capaci: 46.218 grain H2O = 3.001 cm³
Cartridge O.A.L. L6: 2.780 inch = 70.61 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 8208 XBR

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 88 37.68 2075 1912 29502 4800 85.2 1.400
-18.0 91 38.62 2126 2008 31517 4958 86.5 1.362
-16.0 93 39.56 2178 2107 33674 5112 87.7 1.326
-14.0 95 40.51 2230 2208 35994 5263 88.9 1.291
-12.0 97 41.45 2282 2312 38483 5410 90.0 1.255
-10.0 99 42.39 2333 2418 41159 5552 91.1 1.217
-08.0 102 43.33 2386 2527 44037 5689 92.1 1.182
-06.0 104 44.27 2438 2639 47141 5820 93.1 1.148
-04.0 106 45.22 2490 2754 50489 5944 94.0 1.114 ! Near Maximum !
-02.0 108 46.16 2543 2871 54104 6063 94.9 1.083 ! Near Maximum !
+00.0 111 47.10 2595 2991 58012 6173 95.6 1.052 ! Near Maximum !
+02.0 113 48.04 2648 3113 62217 6276 96.4 1.022 !DANGEROUS LOAD-DO NOT USE!
+04.0 115 48.98 2700 3238 66770 6371 97.0 0.993 !DANGEROUS LOAD-DO NOT USE!
+06.0 117 49.93 2753 3366 71716 6457 97.6 0.965 !DANGEROUS LOAD-DO NOT USE!
+08.0 119 50.87 2806 3497 77100 6533 98.2 0.938 !DANGEROUS LOAD-DO NOT USE!
+10.0 122 51.81 2859 3630 82975 6599 98.7 0.911 !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 111 47.10 2721 3289 69438 6165 99.3 0.980 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 111 47.10 2432 2627 47243 5903 88.5 1.145

Cartridge : .358 Win.
Bullet : .358, 200, Nosler AccuBond 54425
Useable Case Capaci: 46.218 grain H2O = 3.001 cm³
Cartridge O.A.L. L6: 2.780 inch = 70.61 mm
Barrel Length : 22.0 inch = 558.8 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 58000 psi, or 399 MPa
or a maximum loading ratio or filling of 110 %
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 !

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Hodgdon BL-C2 110.0 51.1 3.31 2628 95.1 55974 6607 1.053 ! Near Maximum !
Accurate 2460 106.2 48.7 3.15 2599 96.7 58000 6147 1.062 ! Near Maximum !
Accurate 2520 110.0 49.4 3.20 2598 96.9 53615 6338 1.076 ! Near Maximum !
Accurate 2495 110.0 45.8 2.97 2548 99.1 47722 6256 1.145
Norma 201 110.0 45.8 2.97 2499 94.2 50779 6056 1.125 ! Near Maximum !

Cartridge : .358 Win.
Bullet : .358, 225, Nosler PART SP 44800
Useable Case Capaci: 46.595 grain H2O = 3.025 cm³
Cartridge O.A.L. L6: 2.780 inch = 70.61 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 8208 XBR

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 85 36.64 1977 1954 29848 4872 88.1 1.472
-18.0 87 37.56 2025 2049 31838 5024 89.3 1.433
-16.0 90 38.47 2073 2146 33965 5172 90.4 1.396
-14.0 92 39.39 2120 2246 36236 5316 91.4 1.359
-12.0 94 40.30 2168 2348 38673 5456 92.4 1.321
-10.0 96 41.22 2216 2452 41280 5591 93.4 1.284
-08.0 98 42.14 2263 2559 44070 5720 94.3 1.248
-06.0 100 43.05 2311 2668 47042 5843 95.1 1.213
-04.0 102 43.97 2359 2779 50211 5960 95.9 1.179 ! Near Maximum !
-02.0 105 44.88 2406 2893 53610 6069 96.6 1.146 ! Near Maximum !
+00.0 107 45.80 2454 3008 57262 6172 97.2 1.115 ! Near Maximum !
+02.0 109 46.72 2501 3126 61189 6267 97.8 1.084 !DANGEROUS LOAD-DO NOT USE!
+04.0 111 47.63 2549 3246 65419 6353 98.3 1.055 !DANGEROUS LOAD-DO NOT USE!
+06.0 113 48.55 2596 3368 69982 6431 98.7 1.027 !DANGEROUS LOAD-DO NOT USE!
+08.0 115 49.46 2644 3492 74912 6500 99.1 0.999 !DANGEROUS LOAD-DO NOT USE!
+10.0 117 50.38 2691 3618 80248 6559 99.4 0.973 !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 107 45.80 2563 3283 68206 6082 99.9 1.041 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 107 45.80 2308 2662 46747 5979 90.9 1.211

Cartridge : .358 Win.
Bullet : .358, 225, Nosler PART SP 44800
Useable Case Capaci: 46.595 grain H2O = 3.025 cm³
Cartridge O.A.L. L6: 2.780 inch = 70.61 mm
Barrel Length : 22.0 inch = 558.8 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 58000 psi, or 399 MPa
or a maximum loading ratio or filling of 110 %
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 !

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Hodgdon BL-C2 107.5 50.4 3.27 2525 97.3 58000 6699 1.094 ! Near Maximum !
Accurate 2520 108.3 49.1 3.18 2514 98.8 58000 6392 1.102 ! Near Maximum !
Accurate 2495 110.0 46.2 3.00 2503 100.0 55687 6212 1.138 ! Near Maximum !
Accurate 2460 102.7 47.5 3.08 2465 98.2 58000 6140 1.121 ! Near Maximum !
IMR 4895 110.0 47.2 3.06 2461 95.1 53087 6613 1.138 ! Near Maximum !
Alliant Reloder-15 110.0 47.2 3.06 2428 94.0 52022 6461 1.152 ! Near Maximum !

It would work with the 35 Whelen, as well.

Cartridge : .35 Whelen
Bullet : .358, 225, Nosler PART SP 44800
Useable Case Capaci: 62.082 grain H2O = 4.031 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 8208 XBR

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 44.40 2125 2257 31051 6360 92.2 1.425
-18.0 80 45.51 2174 2361 32985 6544 93.2 1.390
-16.0 81 46.62 2223 2468 35034 6723 94.1 1.355
-14.0 83 47.73 2271 2578 37206 6895 95.0 1.322
-12.0 85 48.84 2320 2689 39507 7061 95.8 1.285
-10.0 87 49.95 2368 2802 41946 7219 96.5 1.250
-08.0 89 51.06 2416 2917 44530 7370 97.2 1.216
-06.0 91 52.17 2464 3033 47271 7513 97.8 1.183
-04.0 93 53.28 2512 3152 50177 7646 98.3 1.152 ! Near Maximum !
-02.0 95 54.39 2559 3272 53262 7771 98.7 1.122 ! Near Maximum !
+00.0 97 55.50 2606 3394 56536 7886 99.1 1.092 ! Near Maximum !
+02.0 99 56.61 2653 3517 60015 7991 99.4 1.064 !DANGEROUS LOAD-DO NOT USE!
+04.0 101 57.72 2700 3642 63713 8086 99.7 1.037 !DANGEROUS LOAD-DO NOT USE!
+06.0 103 58.83 2746 3768 67647 8170 99.9 1.011 !DANGEROUS LOAD-DO NOT USE!
+08.0 105 59.94 2792 3895 71837 8242 100.0 0.985 !DANGEROUS LOAD-DO NOT USE!
+10.0 107 61.05 2838 4024 76302 8303 100.0 0.961 !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 97 55.50 2706 3658 66467 7637 100.0 1.022 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 97 55.50 2467 3042 46847 7789 94.6 1.184

Cartridge : .35 Whelen
Bullet : .358, 225, Nosler PART SP 44800
Useable Case Capaci: 62.082 grain H2O = 4.031 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 57000 psi, or 393 MPa
or a maximum loading ratio or filling of 110 %
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 !

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Alliant Reloder-17 108.5 65.1 4.22 2742 98.6 57000 9329 1.057 ! Near Maximum !
Vihtavuori N550 110.0 64.3 4.17 2690 96.7 56342 9021 1.079 ! Near Maximum !
Winchester 760 107.5 65.1 4.22 2686 93.7 57000 9003 1.069 ! Near Maximum !
Hodgdon H414 107.5 65.1 4.22 2686 93.7 57000 9003 1.069 ! Near Maximum !
IMR 4895 102.0 58.4 3.78 2674 98.4 57000 8633 1.084 ! Near Maximum !
Hodgdon BL-C2 97.4 60.8 3.94 2669 99.2 57000 8505 1.083 ! Near Maximum !
Norma 203 old 105.4 61.0 3.95 2668 99.0 57000 8504 1.091 ! Near Maximum !
Norma 203B 103.3 59.1 3.83 2663 98.3 57000 8526 1.085 ! Near Maximum !
Alliant Reloder-15 102.7 58.8 3.81 2660 97.9 57000 8537 1.085 ! Near Maximum !
Accurate 4064 105.6 59.1 3.83 2657 100.0 57000 8061 1.111 ! Near Maximum !
Accurate 2520 97.7 58.9 3.82 2649 99.9 57000 8038 1.095 ! Near Maximum !
Hodgdon H380 104.0 60.8 3.94 2642 96.4 57000 8506 1.089 ! Near Maximum !
Accurate 2495 99.5 55.7 3.61 2642 100.0 57000 7710 1.118 ! Near Maximum !
Norma 201 100.3 56.1 3.64 2613 99.2 57000 7991 1.103 ! Near Maximum !
Accurate 2460 93.0 57.3 3.71 2607 99.6 57000 7784 1.106 ! Near Maximum !
Accurate 4350 110.0 63.0 4.08 2604 95.6 50040 8738 1.138 ! Near Maximum !
Norma URP 110.0 62.3 4.03 2603 95.5 50707 8685 1.125 ! Near Maximum !
Ramshot Hunter 110.0 65.0 4.21 2593 93.0 50771 8778 1.123 ! Near Maximum !
Norma 204 110.0 65.0 4.21 2593 89.6 54379 8516 1.095 ! Near Maximum !
IMR 4007 SSC 105.0 60.9 3.95 2590 92.8 57000 8191 1.095 ! Near Maximum !
IMR 4350 110.0 62.6 4.06 2553 91.6 52810 8131 1.115 ! Near Maximum !
Accurate 2700 104.6 62.5 4.05 2538 92.3 57000 7658 1.102 ! Near Maximum !
Hodgdon Hybrid 100V 110.0 60.9 3.95 2506 96.5 46491 8024 1.169
Hodgdon H4350 110.0 61.6 3.99 2501 90.5 49591 7963 1.147 ! Near Maximum !

Cartridge : .35 Rem.
Bullet : .358, 200, Nosler AccuBond 54425
Useable Case Capaci: 36.167 grain H2O = 2.348 cm³
Cartridge O.A.L. L6: 2.525 inch = 64.14 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 8208 XBR

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 85 28.24 1699 1282 21038 3139 73.6 1.649
-18.0 87 28.95 1741 1346 22330 3259 75.0 1.608
-16.0 89 29.65 1784 1413 23707 3379 76.3 1.568
-14.0 91 30.36 1827 1482 25174 3499 77.6 1.529
-12.0 93 31.06 1870 1552 26744 3618 78.9 1.491
-10.0 95 31.77 1913 1626 28421 3736 80.1 1.454
-08.0 97 32.48 1957 1701 30213 3853 81.4 1.418
-06.0 100 33.18 2001 1778 32130 3968 82.6 1.383
-04.0 102 33.89 2045 1858 34186 4082 83.7 1.349 ! Near Maximum !
-02.0 104 34.59 2090 1940 36392 4193 84.9 1.315 ! Near Maximum !
+00.0 106 35.30 2135 2024 38758 4302 86.0 1.281 ! Near Maximum !
+02.0 108 36.01 2180 2111 41306 4409 87.1 1.246 !DANGEROUS LOAD-DO NOT USE!
+04.0 110 36.71 2226 2200 44049 4512 88.1 1.212 !DANGEROUS LOAD-DO NOT USE!
+06.0 112 37.42 2271 2291 47008 4612 89.2 1.180 !DANGEROUS LOAD-DO NOT USE!
+08.0 114 38.12 2318 2385 50206 4708 90.1 1.148 !DANGEROUS LOAD-DO NOT USE!
+10.0 116 38.83 2364 2481 53667 4800 91.1 1.117 !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 106 35.30 2271 2290 46418 4532 93.2 1.186 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 106 35.30 1975 1732 31980 3912 76.4 1.391

Cartridge : .35 Rem.
Bullet : .358, 200, Nosler AccuBond 54425
Useable Case Capaci: 36.167 grain H2O = 2.348 cm³
Cartridge O.A.L. L6: 2.525 inch = 64.14 mm
Barrel Length : 22.0 inch = 558.8 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 38000 psi, or 262 MPa
or a maximum loading ratio or filling of 110 %
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 !

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Accurate 2520 109.1 38.4 2.49 2186 88.4 38000 4643 1.272 ! Near Maximum !
Accurate 2495 110.0 35.9 2.32 2161 92.7 32383 4771 1.344
Hodgdon BL-C2 106.9 38.9 2.52 2159 84.5 38000 4628 1.280 ! Near Maximum !
Accurate 2460 103.2 37.0 2.40 2150 87.7 38000 4410 1.292 ! Near Maximum !
Norma 201 109.9 35.8 2.32 2136 86.1 38000 4402 1.301 ! Near Maximum !
IMR 4895 110.0 36.7 2.38 2121 81.9 35790 4507 1.311 ! Near Maximum !
Alliant Reloder-15 110.0 36.7 2.38 2090 80.3 35179 4361 1.325 ! Near Maximum !
Norma 203B 110.0 36.7 2.38 2080 80.9 34374 4362 1.335 ! Near Maximum !
 
Dr. Mike
I need better glasses....
My .308 has a 26" tube
Would you mind running QL again ?

.308 Win Brass
Fed 210M
8208XBR
168 SMK
165 SGK
Trim 2.005
Coal 2.800
Ogive 2.215
 
Code: 
Cartridge          : .308 Win. (SAAMI)
Bullet             : .308, 168, Sierra HPBT MatchK 2200 G7Litz
Useable Case Capaci: 48.726 grain H2O = 3.164 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 26.0 inch = 660.4 mm
Powder             : IMR 8208 XBR

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    35.04   2299    1971   33104   5499     95.5    1.560
-18.0   80    35.92   2349    2059   35189   5636     96.3    1.522
-16.0   82    36.79   2400    2148   37399   5767     97.0    1.484
-14.0   84    37.67   2449    2238   39740   5891     97.6    1.443
-12.0   86    38.54   2499    2330   42220   6007     98.2    1.404
-10.0   88    39.42   2548    2422   44848   6116     98.7    1.367
-08.0   90    40.30   2597    2516   47634   6218     99.1    1.331
-06.0   92    41.17   2645    2610   50588   6310     99.4    1.296
-04.0   94    42.05   2693    2706   53720   6395     99.7    1.263  ! Near Maximum !
-02.0   96    42.92   2741    2803   57045   6470     99.9    1.231  ! Near Maximum !
+00.0   98    43.80   2788    2900   60575   6536    100.0    1.200  ! Near Maximum !
+02.0   99    44.68   2835    2998   64326   6593    100.0    1.170  !DANGEROUS LOAD-DO NOT USE!
+04.0  101    45.55   2881    3096   68315   6644    100.0    1.142  !DANGEROUS LOAD-DO NOT USE!
+06.0  103    46.43   2927    3196   72559   6693    100.0    1.114  !DANGEROUS LOAD-DO NOT USE!
+08.0  105    47.30   2972    3296   77081   6740    100.0    1.087  !DANGEROUS LOAD-DO NOT USE!
+10.0  107    48.18   3017    3396   81902   6786    100.0    1.062  !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    43.80   2875    3083   71008   6266    100.0    1.130  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     98    43.80   2659    2637   50322   6643     97.3    1.295

Code: 
Cartridge          : .308 Win. (SAAMI)
Bullet             : .308, 165, Sierra SPBT 2145 G7 Litz
Useable Case Capaci: 49.126 grain H2O = 3.190 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 26.0 inch = 660.4 mm
Powder             : IMR 8208 XBR

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    35.20   2310    1954   32609   5512     95.1    1.556
-18.0   80    36.08   2361    2042   34658   5652     95.9    1.518
-16.0   82    36.96   2411    2130   36828   5786     96.7    1.480
-14.0   84    37.84   2462    2220   39127   5913     97.3    1.440
-12.0   85    38.72   2512    2311   41562   6034     97.9    1.401
-10.0   87    39.60   2561    2403   44142   6146     98.5    1.364
-08.0   89    40.48   2611    2497   46877   6251     98.9    1.328
-06.0   91    41.36   2659    2591   49775   6348     99.3    1.293
-04.0   93    42.24   2708    2687   52849   6436     99.6    1.260  ! Near Maximum !
-02.0   95    43.12   2756    2783   56111   6515     99.8    1.228  ! Near Maximum !
+00.0   97    44.00   2804    2880   59573   6585     99.9    1.197  ! Near Maximum !
+02.0   99    44.88   2851    2978   63251   6646    100.0    1.168  !DANGEROUS LOAD-DO NOT USE!
+04.0  101    45.76   2898    3077   67161   6698    100.0    1.139  !DANGEROUS LOAD-DO NOT USE!
+06.0  103    46.64   2944    3176   71321   6747    100.0    1.111  !DANGEROUS LOAD-DO NOT USE!
+08.0  105    47.52   2990    3276   75750   6795    100.0    1.085  !DANGEROUS LOAD-DO NOT USE!
+10.0  107    48.40   3036    3377   80472   6840    100.0    1.059  !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     97    44.00   2893    3067   69861   6314    100.0    1.126  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     97    44.00   2671    2615   49475   6668     97.0    1.293
 
Returned from range today. Started load @40.0 went up .5gr to 42.5
1st node was at 40.05 2nd was at 42.0
42.0 gave a 3 shot .613 @100
No pressure signs @42.5 good primers
smooth lift. I suspect a 3rd node around 43.5
will try 43 and 43.5 next.
I am getting about 4.6% less velocity than
QL predicted. This is gonna take some time.
Temp was 45 at the range today.
 
It does sound as if accuracy is present. Good report to encourage you thus far.
 
Finished the chg wt. for 8208XBR in my .308 today.
With 168SMK's looks like 41.8 was the best accuracy
and 43.0 having good hunting velocity with MOA @ 100.
Over all its a good powder I did load duplicate Chg's @42.0
to shoot at different temps. I had a +50 fps higher reading
at 73 deg today compare to the 45 deg temp the other day
I don't know if that is temp sensitive or not ? I Think I could
get as good a load as Varget if I stay with it and the groups
would have been tighter but the club was having a BP shooting
match and the wind was up but everyone was tolerant of me
with the chrony and going downrange and back.
The 41.8 was a 4 shot group some how I load 4 ?
Skid
 

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Does QL have a parameter for Temp ?
I don't know much about the program.
 
It does not. I don't know whether to think that's a good thing or a bad thing. Probably good!
 
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