Aqui un enlace bueno para recargas del 6.8...
https://68forums.com/forums/showthread.p ... ton-6-8SPCReloading data for the 16″ Remington 6.8SPC.
INTRO: This is all of my reloading data for the 16″ Remington 6.8SPC.
A: Sierra 90 Gr. HP:
Brass: SSA.
Primer: Winchester WSR.
Crimp: Roll Crimp.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.280″.
Gun: Ko-Tonics 16″ Chrome Lined 1:11″ twist.
Temp: 70.
26.5 Gr. of H4198: Avg: 2733fps, Lo: 2704fps, Hi: 2766fps, ES: 62, SD: 23
27.5 Gr. of H4198: Avg: 2818fps, Lo: 2812fps, Hi: 2824fps, ES: 12, SD: 4
28.5 Gr. of H4198: Avg: 2902fps, Lo: 2861fps, Hi: 2943fps, ES: 82, SD: 31
Accuracy:
26.5 Gr.: .61″ and 1.05″. (This would e my favorite, but it felt underpowered and it did not cycle properly.).
27 Gr.: 1.22″ and 1.28″.
27.5 Gr.: 1″ and 1.25″.
28 Gr.: 1.15″ and 1.09″.
28.5 Gr.: 1.26″ and 1.09″. My favorite with this powder.
29 Gr. of H322: Avg: 2627fps, Lo: 2619fps, Hi: 2640fps, ES: 21, SD: 9
30 Gr. of H322: Avg: 2727fps, Lo: 2715fps, Hi: 2737fps, ES: 22, SD: 9
31 Gr. of H322: Avg: 2821fps, Lo: 2801fps, Hi: 2842fps, ES: 41, SD: 15
Accuracy:
29 Gr.: .608″ and .876″.
29.5 Gr.: 1.343″ and 1.08″.
30 Gr.: .996″ and .780″. My favorite with this powder.
30.5 Gr.: 1.07″ and .794″.
31 Gr.: .989″ and 1.02″.
31 Gr. of H335: Avg: 2633fps, Lo: 2604fps, Hi: 2672fps, ES: 68, SD: 27
32 Gr. of H335: Avg: 2764fps, Lo: 2699fps, Hi: 2830fps, ES: 131, SD: ?
33 Gr. of H335: Avg: 2880fps, Lo: 2867fps, Hi: 2898fps, ES: 31, SD: 13
Accuracy:
31 Gr.: .83″ and .92″.
31.5 Gr.: .85″ and 1.1″.
32 Gr.: 1.1″ and 1.4″.
32.5 Gr.: 1.4″ and 1.26″.
33 Gr.: .98″ and 1.05″. My favorite with this powder.
B: Speer 90 Gr. TNT:
Brass: SSA.
Primer: Winchester WSR.
Crimp: Roll Crimp.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.280″.
Gun: Ko-Tonics 16″ Chrome Lined 1:11″ twist.
Chrony Distance: (@10′)
Temp: 80.
26 Gr. of H4198: Avg: 2683fps, Lo: 2656fps, Hi: 2704fps, ES: 48, SD: 15
27.5 Gr. of H4198: Avg: 2787fps, Lo: 2766fps, Hi: 2812fps, ES: 46, SD: 18
28.5 Gr. of H4198: Avg: 2854fps, Lo: 2842fps, Hi: 2873fps, ES: 31, SD: 10
Accuracy:
26 Gr.: 1.4″ and 1.2″.
26.5 Gr.: 1.23″ and 1.45″.
27 Gr.: ? and 1.1″.
27.5 Gr.: 1.4″ and 1.2″.
28 Gr.: 1.8″ and 1.4″.
28.5 Gr.: 1.2″ and 1.3″. My favorite with this powder.
30 Gr. of H322: Avg: 2671fps, Lo: 2661fps, Hi: 2682fps, ES: 21, SD: 8
31.5 Gr. of H322: Avg: 2804fps, Lo: 2801fps, Hi: 2812fps, ES: 11, SD: 4
Accuracy:
29 Gr.: 1.43″ and 1.2″.
29.5 Gr.: .93″ and 1.17″.
30 Gr.: .875″ and 1.15″. My favorite with this powder.
30.5 Gr.: 1.5″ and 1.4″.
31 Gr.: 1.46″ and 1.25″.
31.5 Gr.: 1.1″ and 1.7″.
31 Gr. of H335: Avg: 2580fps, Lo: 2539fps, Hi: 2629fps, ES: 85, SD: 26
32 Gr. of H335: Avg: 2677fps, Lo: 2645fps, Hi: 2737fps, ES: 92, SD: 28
33 Gr. of H335: Avg: 2806fps, Lo: 2749fps, Hi: 2836fps, ES: 87, SD: 24
Accuracy:
31 Gr.: 1.34″ and 1.05″. My favorite with this powder.
31.5 Gr.: 1.28″ and 1.57″.
32 Gr.: 1.5″ and 1.65″.
32.5 Gr.: ? and 1.3″.
33 Gr.: Really bad and worse.
C: Hornady 100 Gr. SP:
Brass: SSA.
Primer: Winchester WSR.
Crimp: Roll Crimp.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.255″.
Gun: Ko-Tonics 16″ Chrome Lined 1:11″ twist.
Chrony Distance: (@10′)
Temp: 70
24.5 Gr. of H4198: Avg: 2516fps, Lo: 2496fps, Hi: 2525fps, ES: 29, SD: 12
25.5 Gr. of H4198: Avg: 2657fps, Lo: 2624fps, Hi: 2693fps, ES: 69, SD: 31
26.5 Gr. of H4198: Avg: 2691fps, Lo: 2682fps, Hi: 2699fps, ES: 17, SD: 6
26.5 Gr. of H322: Avg: 2423fps, Lo: 2411fps, Hi: 2437fps, ES: 26, SD: 11
27.5 Gr. of H322: Avg: 2505fps, Lo: 2478fps, Hi: 2525fps, ES: 47, SD: 17
28.5 Gr. of H322: Avg: 2586fps, Lo: 2564fps, Hi: 2604fps, ES: 40, SD: 14
30 Gr. of H335: Avg: 2554fps, Lo: 2544fps, Hi: 2559fps, ES: 15, SD: 6
31 Gr. of H335: Avg: 2620fps, Lo: 2614fps, Hi: 2629fps, ES: 15, SD: 6
D: Hornady 110 Gr. V-Max:
Brass: SSA.
Primer: Winchester WSR.
Crimp: Roll Crimp.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.270″.
Gun: Ko-Tonics 16″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 80
23.3 Gr. of H4198: Avg: 2397fps, Lo: 2368fps, Hi: 2415fps, ES: 47, SD: 18
24.3 Gr. of H4198: Avg: 2471fps, Lo: 2460fps, Hi: 2482fps, ES: 22, SD: 9
25.3 Gr. of H4198: Avg: 2523fps, Lo: 2515fps, Hi: 2530fps, ES: 15, SD: 6
27 Gr. of H322: Avg: 2435fps, Lo: 2419fps, Hi: 2455fps, ES: 36, SD: 16
28 Gr. of H322: Avg: 2532fps, Lo: 2501fps, Hi: 2569fps, ES: 68, SD: 25
29 Gr. of H322: Avg: 2607fps, Lo: 2569fps, Hi: 2624fps, ES: 55, SD: 21
27.5 Gr. of H335: Avg: 2388fps, Lo: 2372fps, Hi: 2398fps, ES: 26, SD: 9
28.5 Gr. of H335: Avg: 2470fps, Lo: 2446fps, Hi: 2487fps, ES: 41, SD: 16
29.5 Gr. of H335: Avg: 2585fps, Lo: 2544fps, Hi: 2629fps, ES: 85, SD: 32
E: Sierra 110 Gr. Pro-Hunters:
Brass: SSA.
Primer: Winchester WSR.
Crimp: Roll Crimp.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.280″.
Gun: Ko-Tonics 16″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 80
23.3 Gr. of H4198: Avg: 2319fps, Lo: 2294fps, Hi: 2339fps, ES: 45, SD: 18
24.3 Gr. of H4198: Avg: 2408fps, Lo: 2393fps, Hi: 2419fps, ES: 26, SD: 10
25.3 Gr. of H4198: Avg: 2482fps, Lo: 2473fps, Hi: 2496fps, ES: 23, SD: 9
Accuracy:
23.3 Gr.: 1.5″ and 1.38″.
23.8 Gr.: 1.56″ and 1.58″.
24.3 Gr.: 1.18″ and .828″. My favorite with this powder.
24.8 Gr.: 1.53″ and 1.52″.
25.3 Gr.: 1.57″ and .733″.
27 Gr. of H322: Avg: 2396fps, Lo: 2389fps, Hi: 2402fps, ES: 13, SD: 5
28 Gr. of H322: Avg: 2457fps, Lo: 2442fps, Hi: 2482fps, ES: 40, SD: 17
29 Gr. of H322: Avg: 2501fps, Lo: 2496fps, Hi: 2515fps, ES: 19, SD: 5
28.5 Gr. of H322: Chrony Data (@10′): Avg: 2483fps, Lo: 2464fps, Hi: 2515fps, ES: 51, SD: 14
29 Gr. of H322: Chrony Data (@10′): Avg: 2534fps, Lo: 2520fps, Hi: 2544fps, ES: 24, SD: 8
Accuracy:
27 Gr.: 1.61″ and 1.77″.
27.5 Gr.: 1.13″ and .914″.
28 Gr.: 1.16″ and .928″.
28.5 Gr.: .880″ and .849″. My favorite with this powder.
29 Gr.: 1.13″ and .626″.
27.5 Gr. of H335: Avg: 2349fps, Lo: 2339fps, Hi: 2359fps, ES: 20, SD: 7
28.5 Gr. of H335: Avg: 2401fps, Lo: 2389fps, Hi: 2411fps, ES: 22, SD: 8
29.5 Gr. of H335: Avg: 2494fps, Lo: 2455fps, Hi: 2549fps, ES: 94, SD: 34
Accuracy:
27.5 Gr.: .624″ and 1.02″.
28 Gr.: 1.19″ and 1.55″.
28.5 Gr.: 1.63″ and 1.38″.
29 Gr.: 1.18″ and 1.03″. My favorite with this powder.
29.5 Gr.: 1.87″ and 2.02″.
F: SSA 115 Gr. Enhanced SMK:
Brass: SSA.
Primer: Winchester WSR.
Crimp: Roll Crimp.
OAL: 2.240″.
Gun: Ko-Tonics 16″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 80
22 Gr. of H4198: Avg: 2184fps, Lo: 2168fps, Hi: 2203fps, ES: 35, SD: 15
23 Gr. of H4198: Avg: 2250fps, Lo: 2240fps, Hi: 2263fps, ES: 23, SD: 9
24 Gr. of H4198: Avg: 2343fps, Lo: 2326fps, Hi: 2351fps, ES: 25, SD: 11
Accuracy:
22 Gr.: 1.03″ and 1.47″.
22.5 Gr.: .757″ and .828″. My favorite with this powder.
23 Gr.: 1.17″ and 1.13″.
23.5 Gr.: 1.67″ and 1.24″.
24 Gr.: 1.44″ and 1.38″.
26.2 Gr. of H322: Avg: 2281fps, Lo: 2196fps, Hi: 2237fps, ES: 41, SD: 15
27.2 Gr. of H322: Avg: 2378fps, Lo: 2372fps, Hi: 2385fps, ES: 13, SD: 5
28.2 Gr. of H322: Avg: 2461fps, Lo: 2442fps, Hi: 2482fps, ES: 40, SD: 18
Accuracy:
26.2 Gr.: 1.62″ and 1.28″.
26.7 Gr.: ? and .886″.
27.2 Gr.: .987″ and .705″. My favorite with this powder.
27.7 Gr.: 1.10″ and 1.50″.
28.2 Gr.: 2.13″ and 1.265″.
27 Gr. of H335: Avg: 2221fps, Lo: 2196fps, Hi: 2237fps, ES: 41, SD: 15
28 Gr. of H335: Avg: 2334fps, Lo: 2322fps, Hi: 2347fps, ES: 25, SD: 10
29 Gr. of H335: Avg: 2444fps, Lo: 2428fps, Hi: 2478fps, ES: 50, SD: 19
Accuracy:
27 Gr.: 1.38″ and 2.05″.
27.5 Gr.: 1.93″ and 1.91″.
28 Gr.: .547″ and .640″. My favorite with this powder.
28.5 Gr.: 1.14″ and .955″.
29 Gr.: 2.09″ and 2.83″.
G: Sierra 115 Gr. SMK:
Brass: SSA.
Primer: Winchester WSR.
Crimp: Roll Crimp.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.280″.
Gun: Ko-Tonics 16″ Chrome Lined 1:11″ twist.
Chrony Distance: (@10′)
Temp: 80
26 Gr. of H322: Avg: 2253fps, Lo: 2240fps, Hi: 2271fps, ES: 31, SD: 9
28.5 Gr. of H322: Avg: 2470fps, Lo: 2442fps, Hi: 2501fps, ES: 59, SD: 17
29.5 Gr. of H322: Avg: 2553fps, Lo: 2530fps, Hi: 2574fps, ES: 44, SD: 14
Reply With Quote Reply With Quote Multi-Quote This Message
02-11-2011 10:44 AM #4
Paulo_Santos Paulo_Santos is offline
6.8 SPC Lover
Join Date
Feb 2011
Posts
476
Default Reloading data for the 18″ Remington 6.8SPC.
INTRO: This is all of my reloading data for the 18″ Remington 6.8SPC.
A: Sierra 90 GR HP:
Weapon: Bison Armory 18″ SPR.
Optic: SWFA 3-9-44 Super Sniper.
Brass: SSA.
Powder: 28.5 GR of Benchmark.
Crimp: Lee FCD.
OAL: 2.250″ & 2.295.
Chrony Distance: (@5′)
Temp: 92.
OAL 2.250″: (10 rounds).
Hi: 2677 fps, Lo: 2583 fps, Avg: 2650 fps, ES: 94, SD: 26
Accuracy (2 5 round shot groups):
Average: 1.532″ (1.470″ & 1.595″).
OAL 2.295″: (10 rounds).
Hi: 2710 fps, Lo: 2624 fps, Avg: 2661 fps, ES: 86, SD: 29
Accuracy (2 5 round shot groups):
Average: 1.487″ (1.035″ & 1.939″).
B: Sierra 115 GR SMK:
Weapon: Bison Armory 18″ SPR.
Optic: SWFA 3-9-44 Super Sniper.
Brass: SSA.
Crimp: Lee FCD.
Powder: 30 GR of TAC.
OAL: 2.245″.
Chrony Distance: (@5′)
Temp: 92.
Wolf SRM: (10 rounds).
Hi: 2530 fps, Lo: 2460 fps, Avg: 2488 fps, ES: 70, SD: 23
Accuracy (2 5 round shot groups):
Average: 1.280″ (1.280″ & 1.280″).
Wolf 223: (10 rounds).
Hi: 2515 fps, Lo: 2460 fps, Avg: 2481 fps, ES: 55, SD: 16
Accuracy (2 5 round shot groups):
Average: 1.567″ (1.489″ & 1.646″).
CCI #41: (10 rounds).
Hi: 2578 fps, Lo: 2487 fps, Avg: 2542 fps, ES: 91, SD: 27
Accuracy (2 5 round shot groups):
Average: 3.096″ (3.001″ & 3.191″).
Reply With Quote Reply With Quote Multi-Quote This Message
02-11-2011 10:49 AM #5
Paulo_Santos Paulo_Santos is offline
6.8 SPC Lover
Join Date
Feb 2011
Posts
476
Default Reloading data for the 20″ Remington 6.8SPC.
INTRO: This is all of my reloading data for the 20″ Remington 6.8SPC.
A: Sierra 90 Gr. HP:
Brass: SSA.
Primer: CCI #41.
Crimp: Lee FCD.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.260″.
Gun: Ko-Tonics 20″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 50.
28 Gr. of Reloaders7: Avg: 2906fps, Lo: 2892fps, Hi: 2923fps, ES: 31, SD: 15
28.5 Gr. of Reloaders7: Avg: 2935fps, Lo: 2911fps, Hi: 2949fps, ES: 38, SD: 14
30.5 Gr. of H322: Avg: 2878fps, Lo: 2867fps, Hi: 2886fps, ES: 19, SD: 8
31 Gr. of H322: Avg: 2927fps, Lo: 2886fps, Hi: 2969fps, ES: 83, SD: 38
32.5 Gr. of H335: Avg: 2863fps, Lo: 2830fps, Hi: 2892fps, ES: 62, SD: 26
33 Gr. of H335: Avg: 2887fps, Lo: 2879fps, Hi: 2904fps, ES: 25, SD: 11
31 Gr. of AA2230: Avg: 2743fps, Lo: 2721fps, Hi: 2760fps, ES: 39, SD: 14
32.5 Gr. of X-Terminator: Avg: 2884fps, Lo: 2861fps, Hi: 2911fps, ES: 50, SD: 17
33.5 Gr. of TAC: Avg: 2872fps, Lo: 2855fps, Hi: 2892fps, ES: 37, SD: 15
B: Speer 90 Gr. TNT:
Brass: SSA.
Primer: CCI #41.
Crimp: Lee FCD.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.280″.
Gun: Ko-Tonics 20″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 50.
28.1 Gr. of H4198: Avg: 2945fps, Lo: 2886fps, Hi: 2989fps, ES: 103, SD: 37
28.6 Gr. of H4198: Avg: 2984fps, Lo: 2949fps, Hi: 3016fps, ES: 67, SD: 26
28 Gr. of Reloaders7: Avg: 2898fps, Lo: 2892fps, Hi: 2904fps, ES: 12, SD: 8
28.5 Gr. of Reloaders7: Avg: 2938fps, Lo: 2911fps, Hi: 2976fps, ES: 65, SD: 23
30 Gr. of H322: Avg: 2817fps, Lo: 2795fps, Hi: 2855fps, ES: 60, SD: 18
30.5 Gr. of H322: Avg: 2846fps, Lo: 2795fps, Hi: 2866fps, ES: 91, SD: 27
31 Gr. of H322: Avg: 2908fps, Lo: 2861fps, Hi: 2936fps, ES: 75, SD: 22
31.5 Gr. of H322: Avg: 2933fps, Lo: 2911fps, Hi: 2956fps, ES: 45, SD: 15
32.5 Gr. of H335: Avg: 2832fps, Lo: 2818fps, Hi: 2867fps, ES: 49, SD: 17
33 Gr. of H335: Avg: 2863fps, Lo: 2842fps, Hi: 2936fps, ES: 50, SD: 17
30.5 Gr. of AA2230: Avg: 2724fps, Lo: 2699fps, Hi: 2754fps, ES: 55, SD: 18
31 Gr. of AA2230: Avg: 2760fps, Lo: 2743fps, Hi: 2783fps, ES: 40, SD: 15
32 Gr. of X-Terminator: Avg: 2829fps, Lo: 2801fps, Hi: 2861fps, ES: 60, SD: 18
32.5 Gr. of X-Terminator: Avg: 2899fps, Lo: 2873fps, Hi: 2962fps, ES: 89, SD: 29
C: Hornady 110 Gr. V-Max:
Brass: SSA.
Primer: CCI #41.
Crimp: Lee FCD.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.280″.
Gun: Ko-Tonics 20″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 50
25.3 Gr. of H4198: Avg: 2624fps, Lo: 2578fps, Hi: 2661fps, ES: 83, SD: 28
28 Gr. of H322: Avg: 2629fps, Lo: 2604fps, Hi: 2650fps, ES: 46, SD: 15
28.5 Gr. of H322: Avg: 2690fps, Lo: 2666fps, Hi: 2721fps, ES: 55, SD: 18
29 Gr. of H322: Avg: 2688fps, Lo: 2661fps, Hi: 2721fps, ES: 60, SD: 21
28.4 Gr. of Benchmark: Avg: 2577fps, Lo: 2564fps, Hi: 2599fps, ES: 35, SD: 14
28.7 Gr. of Benchmark: Avg: 2586fps, Lo: 2564fps, Hi: 2604fps, ES: 40, SD: 16
29 Gr. of Benchmark: Avg: 2607fps, Lo: 2574fps, Hi: 2629fps, ES: 55, SD: 24
29.3 Gr. of Benchmark: Avg: 2625fps, Lo: 2614fps, Hi: 2640fps, ES: 26, SD: 11
29 Gr. of H4895: Avg: 2559fps, Lo: 2525fps, Hi: 2578fps, ES: 53, SD: 17
29 Gr. of AA2230: Avg: 2532fps, Lo: 2506fps, Hi: 2564fps, ES: 58, SD: 20
29.5 Gr. of AA2230: Avg: 2578fps, Lo: 2544fps, Hi: 2614fps, ES: 70, SD: 25
29 Gr. of X-Terminator: Avg: 2544fps, Lo: 2520fps, Hi: 2578fps, ES: 58, SD: 19
29.5 Gr. of X-Terminator: Avg: 2578fps, Lo: 2549fps, Hi: 2614fps, ES: 65, SD: 19
D: Hornady 110 Gr. BTHP/WC:
Brass: SSA.
Primer: CCI #41.
Crimp: Lee FCD.
OAL: 2.245″.
Gun: Ko-Tonics 20″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 30
28 Gr. of H322: Avg: 2621fps, Lo: 2578fps, Hi: 2645fps, ES: 67, SD: 29
28.5 Gr. of H322: Avg: 2651fps, Lo: 2635fps, Hi: 2666fps, ES: 31, SD: 12
29 Gr. of H322: Avg: 2692fps, Lo: 2672fps, Hi: 2704fps, ES: 32, SD: 12
28.5 Gr. of X-Terminator: Avg: 2448fps, Lo: 2437fps, Hi: 2455fps, ES: 18, SD: 6
29 Gr. of X-Terminator: Avg: 2503fps, Lo: 2492fps, Hi: 2515fps, ES: 23, SD: 9
29.5 Gr. of X-Terminator: Avg: 2540fps, Lo: 2530fps, Hi: 2549fps, ES: 19, SD: 8
E: Hornady 110 Gr. HP:
Brass: SSA.
Primer: CCI #41.
Crimp: Lee FCD.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.280″.
Gun: Ko-Tonics 20″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 50
29 Gr. of H322: Avg: 2670fps, Lo: 264fps, Hi: 2693fps, ES: 53, SD: 17
29 Gr. of Benchmark: Avg: 2598fps, Lo: 2574fps, Hi: 2635fps, ES: 61, SD: 20
F: Sierra 110 Gr. Pro-Hunters:
Brass: SSA.
Primer: CCI #41.
Crimp: Lee FCD.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.260″.
Gun: Ko-Tonics 20″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 50
28.5 Gr. of H322: Avg: 2681fps, Lo: 2661fps, Hi: 2704fps, ES: 43, SD: 16
29 Gr. of H322: Avg: 2698fps, Lo: 2677fps, Hi: 2721fps, ES: 44, SD: 15
28.4 Gr. of Benchmark: Avg: 2544fps, Lo: 2520fps, Hi: 2574fps, ES: 54, SD: 22
28.7 Gr. of Benchmark: Avg: 2560fps, Lo: 2549fps, Hi: 2569fps, ES: 20, SD: 8
29 Gr. of Benchmark: Avg: 2586fps, Lo: 2564fps, Hi: 2599fps, ES: 35, SD: 15
29.3 Gr. of Benchmark: Avg: 2605fps, Lo: 2569fps, Hi: 2635fps, ES: 66, SD: 28
25.5 Gr. of Reloaders7: Avg: 2574fps, Lo: 2559fps, Hi: 2594fps, ES: 35, SD: 13
G: Hornady 115 Gr. BTHP:
Brass: SSA.
Primer: CCI #41.
Crimp: Lee FCD.
OAL: 2.235″.
Gun: Ko-Tonics 20″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 50
28.2 Gr. of H322: Avg: 2576fps, Lo: 2544fps, Hi: 2599fps, ES: 55, SD: 15
H: SSA 115 Gr. Enhanced SMK:
Brass: SSA.
Primer: CCI #41.
Crimp: Lee FCD.
OAL: 2.235″.
Gun: Ko-Tonics 20″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 50
24 Gr. of H4198: Avg: 2459fps, Lo: 2437fps, Hi: 2482fps, ES: 45, SD: 16
28.2 Gr. of H322: Avg: 2558fps, Lo: 2539fps, Hi: 2574fps, ES: 35, SD: 11
29 Gr. of H335: Avg: 2526fps, Lo: 2501fps, Hi: 2564fps, ES: 63, SD: 20
28.5 Gr. of Benchmark: Avg: 2515fps, Lo: 2460fps, Hi: 2544fps, ES: 84, SD: 24
29 Gr. of H4895: Avg: 2496fps, Lo: 2469fps, Hi: 2539fps, ES: 70, SD: 25
28.5 Gr. of AA2230: Avg: 2458fps, Lo: 2428fps, Hi: 2482fps, ES: 54, SD: 16
29 Gr. of AA2230: Avg: 2503fps, Lo: 2482fps, Hi: 2530fps, ES: 48, SD: 15
28.5 Gr. of X-Terminator: Avg: 2463fps, Lo: 2437fps, Hi: 2482fps, ES: 45, SD: 15
29 Gr. of X-Terminator: Avg: 2504fps, Lo: 2464fps, Hi: 2520fps, ES: 56, SD: 18
I: Nosler Ballistic Tip 130 Gr. Spitzer:
Brass: SSA.
Primer: CCI #41.
Crimp: Lee FCD.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.280″.
Gun: Ko-Tonics 20″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 50
27.5 Gr. of H335: Avg: 2251fps, Lo: 2225fps, Hi: 2275fps, ES: 50, SD: 16
J: Sierra 130 Gr. SBT:
Brass: SSA.
Primer: CCI #41.
Crimp: Lee FCD.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.280″.
Gun: Ko-Tonics 20″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 50
26 Gr. of H322: Avg: 2331fps, Lo: 2302fps, Hi: 2385fps, ES: 83, SD: 26
29 Gr. of TAC: Avg: 2237fps, Lo: 2182fps, Hi: 2290fps, ES: 108, SD: 34
25 Gr. of H4895: Avg: 2121fps, Lo: 2067fps, Hi: 2182fps, ES: 115, SD: 35
27.5 Gr. of AA2230: Avg: 2353fps, Lo: 2326fps, Hi: 2393fps, ES: 67, SD: 19
27.5 Gr. of X-Terminator: Avg: 2343fps, Lo: 2331fps, Hi: 2368fps, ES: 37, SD: 10
28.5 Gr. of X-Terminator: Avg: 2415fps, Lo: 2406fps, Hi: 2428fps, ES: 22, SD: 8
K: Sierra 135 Gr. SMK:
Brass: SSA.
Primer: CCI #41.
Crimp: Lee FCD.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.280″.
Gun: Ko-Tonics 20″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 50
25 Gr. of H322: Avg: 2221fps, Lo: 2175fps, Hi: 2256fps, ES: 81, SD: 24
26.5 Gr. of TAC: Avg: 2154fps, Lo: 2109fps, Hi: 2185fps, ES: 76, SD: 21
27 Gr. of X-Terminator: Avg: 2282fps, Lo: 2263fps, Hi: 2298fps, ES: 35, SD: 11
28 Gr. of X-Terminator: Avg: 2346fps, Lo: 2335fps, Hi: 2355fps, ES: 20, SD: 7
————————————————————————————-
FACTORY AMMO:
Hornady 110 Gr. V-Max:
Gun: Ko-Tonics 20″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 50
Avg: 2620fps, Lo: 2594fps, Hi: 2650fps, ES: 56, SD: 18
Hornady 110 Gr. BTHP TAP:
Gun: Ko-Tonics 20″ Chrome Lined 1:11″ twist.
Chrony Distance: (@5′)
Temp: 70
Avg: 2697fps, Lo: 2677fps, Hi: 2726fps, ES: 49, SD: 18
Reply With Quote Reply With Quote Multi-Quote This Message
02-11-2011 10:50 AM #6
Paulo_Santos Paulo_Santos is offline
6.8 SPC Lover
Join Date
Feb 2011
Posts
476
Default 6.8SPC Velocity Differences Between a 14″, 16″, and a 20″ Barrel:
Here are the velocity differences between a 14″, 16″, and a 20″ Barrel:
14″ Barrel: Ko-Tonics 16″ chrome lined barrel with the 1:11″ twist.
16″ Barrel: Ko-Tonics 16″ chrome lined barrel with the 1:11″ twist.
20″ Barrel: Ko-Tonics 20″ chrome lined barrel with the 1:11″ twist.
Sierra 90 Gr. HP with 28.5 Gr of H4198:
16″ Barrel: 2902 fps Average.
14″ Barrel: 2796 fps Average.
Difference: -105 fps.
Sierra 90 Gr. HP with 31 Gr of H322:
20″ Barrel: 2927 fps Average.
16″ Barrel: 2821 fps Average.
Difference: -106 fps.
14″ Barrel: 2607 fps Average.
Difference: -214 fps.
Speer 90 Gr. TNT with 31.5 Gr of H322:
20″ Barrel: 2933 fps Average.
16″ Barrel: 2804 fps Average.
Difference: -129 fps.
Speer 90 Gr. TNT with 30 Gr of H322:
20″ Barrel: 2817 fps Average.
16″ Barrel: 2671 fps Average.
Difference: -146 fps.
Speer 90 Gr. TNT with 28.6 Gr of H4198:
20″ Barrel: 2984 fps Average.
16″ Barrel: 2854 fps Average.
Difference: -130 fps.
14″ Barrel: 2821 fps Average.
Difference: -33 fps.
Speer 90 Gr. TNT with 32 Gr of X-Terminator:
20″ Barrel: 2829 fps Average.
14″ Barrel: 2676 fps Average.
Difference: -153 fps.
Speer 90 Gr. TNT with 32.5 Gr of X-Terminator:
20″ Barrel: 2899 fps Average.
14″ Barrel: 2747 fps Average.
Difference: -152 fps.
Hornady 110 Gr. BTHP w/Cannelures with 29 Gr of H322:
20″ Barrel: 2692 fps Average.
14″ Barrel: 2462 fps Average.
Difference: -230 fps.
Hornady 110 Gr. V-Max with 29 Gr of H322:
20″ Barrel: 2688 fps Average.
16″ Barrel: 2607 fps Average.
Difference: -81 fps.
14″ Barrel: 2436 fps Average.
Difference: -171 fps.
Hornady 110 Gr. V-Max with 25.3 Gr of H4198:
16″ Barrel: 2523 fps Average.
14″ Barrel: 2456 fps Average.
Difference: -67 fps.
Hornady 110 Gr. V-Max with 29.5 Gr of H335:
16″ Barrel: 2585 fps Average.
14″ Barrel: 2403 fps Average.
Difference: -182 fps.
Sierra 110 Gr. Pro-Hunters with 29 Gr of H322:
20″ Barrel: 2670 fps Average.
16″ Barrel: 2534 fps Average.
Difference: -136 fps.
14″ Barrel: 2400 fps Average.
Difference: -134 fps.
Sierra 110 Gr. Pro-Hunters with 29.5 Gr of H335:
16″ Barrel: 2494 fps Average.
14″ Barrel: 2423 fps Average.
Difference: -71 fps.
SSA 115 Gr. Enhanced SMK with 28.2 Gr of H322:
20″ Barrel: 2558 fps Average.
16″ Barrel: 2461 fps Average.
Difference: -97 fps.
SSA 115 Gr. Enhanced SMK with 24 Gr of H4198:
20″ Barrel: 2459 fps Average.
16″ Barrel: 2343 fps Average.
Difference: -116 fps.