6.8 SPC Reloading Resource
Last Updated :: 1/30/2008 11:14:59 AM
Factory Brass Available in Bulk for Reloading
Remmington
Silver State
Jamison International

Companies Making Reloading Dies/Supplies for the 6.8
Dillon (shellplate with the 650 conversion kit has an 'A' stamped on it)
Hornady (use #12 Shellholder)
Lee (use #21 Shellholder)
Lyman
RCBS (use #19 Shellholder)
Redding (use #5 Shellholder)

Links to Reloading Data
Zak's Reloading Data

Hodgdon's 6.8 SPC Reloading Data

IMR's 6.8 SPC Reloading Data

6.8 SPC Reloading Recipies as used by AR15.com Members
(all standard disclaimers apply - use at your own risk, start 5% lower and work up, do not exceed what your manual indicates).
Loader: stephen_101st
Powder: 24.5gr Accurate #2230
Bullet: .277 Nosler 150gr BT
Primer: CCI Large Rifle
Brass: Silver State once fired
OAL: 2.290"
MV: 2220 from 16" M1S

Loader: silentbushmaster
Powder: 27gr RL 10X
Bullet: .277 Hornady V-Max 110gr BT
Primer: Remington 9 ½
Brass: Silver State
OAL: ?
MV: ?

Loader: watersniper
Powder: 30.7gr H322
Bullet: .277 Sierra 90gr OTM
Primer: Federal 210 Large rifle
Brass: Remington
OAL: (.005 back from lands)
MV: 2830fps out of 20" bolt gun. (2820 with .30 Cal Gemtech HVT can)

Loader: watersniper
Powder: 29.7gr H322
Bullet: .277 Speer 100gr OTM
Primer: Federal 210 Large rifle
Brass: Remington
OAL: (.005 back from lands)
MV: 2704 with .30 Cal Gemtech HVT can

Loader: watersniper
Powder: 29gr H322
Bullet: .277 Hornady V-Max 110gr BT
Primer: Federal 210 Large rifle
Brass: Remington
OAL: (.005 back from lands)
MV: 2640fps out of 20" bolt gun.

Loader: watersniper
Powder: H322
Bullet: .277 Hornady 150gr. SST
Primer: Fed. 210 Large Rifle
Brass: Remington
OAL: (.005 back from lands, does not fit in magazine very well)
Gun: 20" Bolt gun w/SRT 6.8 can
Charge...............24.0 gr ...... 24.5
Velocity avg........2228...........2173
SD.......................7...............14

Loader: CaptSchofield
Powder: 31.0gr AA2520
Bullet: .277 115gr Hornady & Sierra OTM
Primer: Win larger rifle
Brass: Remington
OAL: 2.295 just short enough to fit in PRI mag.
MV: 2580-2600fps from 16” model #1 chrome lined
Notes: have used the 110 barnes with same load as above

Loader: silentbushmaster
Powder: 27.0gr RL 10X
Bullet: .277 Remington 115gr FMJ
Primer: ?
Brass: ?
OAL: ?
MV: ?

Loader: ar15bubba
Powder: 26.0gr H4198
Bullet: .277 90gr Sierra HP
Primer: ?
Brass: ?
OAL: ?
MV: ?

Loader: ar15bubba
Powder: 27.0gr H4198
Bullet: .277 90gr Sierra HP
Primer: ?
Brass: ?
OAL: ?
MV: ?

Loader: ar15bubba
Powder: 24.0gr H4198
Bullet: .277 110gr Sierra Pro Hunter Spire point
Primer: ?
Brass: ?
OAL: ?
MV: ?

Loader: Sader762
Powder: Hodgden H4895
Bullet: .277 Hornady VMax 110 gr.
Primer: Federal G210m Large Rifle Match
Brass: Remington
OAL: 2.270"
Gun: 18" Randall Rausch Barrel - free floated, RRA 2-stage trigger
Charge...............27.0 gr ...... 27.5 .......... 28.0 ..........28.5 ......... 29.0
Velocity avg........2260...........2280...........2317..........2328...........2421
SD......................20...............40..............28.............96...............29

Loader: Sader762
Powder: Hodgden H335
Bullet: .277 Hornady VMax 110 gr.
Primer: Federal G210m Large Rifle Match
Brass: Remington
OAL: 2.270"
Gun: 18" Randall Rausch Barrel - free floated, RRA 2-stage trigger
Charge...............27.0 gr ...... 27.5 .......... 28.0 ..........28.5 ......... 29.0
Velocity avg...........2400.........2476..........2518...........2549..........2586
SD........................37..............25..............35...............30.............42

Loader: Sader762
Powder: Hodgden H322
Bullet: .277 Hornady VMax 110 gr.
Primer: Federal G210m Large Rifle Match
Brass: Remington
OAL: 2.270"
Gun: 18" Randall Rausch Barrel - free floated, RRA 2-stage trigger
Charge...............27.0 gr ...... 27.5 .......... 28.0 ..........28.5 ......... 29.0..........29.2
Velocity avg..........2542..........2568...........2585..........2614.........2658...........2710
SD........................12..............7................25.............14..............17..............17

Loader: Sader762
Powder: Hodgden Varget
Bullet: .277 Hornady VMax 110 gr.
Primer: Federal G210m Large Rifle Match
Brass: Remington
OAL: 2.270"
Gun: 18" Randall Rausch Barrel - free floated, RRA 2-stage trigger
Charge...............27.0 gr ......28.0 .......... 29.0
Velocity avg.........2190..........2341..........2410
SD......................42...............55..............21

Loader:KidColtOutlaw
Powder: 25.7gr Reloader 10X
Bullet: .277 Sierra SBT 130gr.
Primer: Federal #205
Brass: Remington
OAL: 2.295"
Gun: 16" CMMG
Chrony Data:
Hi: 2303fps Lo: 2260 fps Avg: 2281 ES: 43 SD: 14 Temp: 70 degF

Loader: Forest
Powder: 29.0gr H322
Bullet: .277 Hornady 110gr VMAX
Primer: Remington 9 1/2
Brass: SSA
Crimp: Lee FCD
OAL: 2.27"
Gun: 16" Stainless - AR15barreels.com
Chrony Data:
Avg: 2540fps, Lo: 2513, Hi: 2562, SD: 15.32 Temp: 48
A virtual dupliate of the Hornady Factory VMAX load.

Loader: Forest
Powder: 28.0gr H322
Bullet: .277 Remington 115gr FMJ
Primer: Remington 9 1/2
Brass: SSA
Crimp: Lee FCD
OAL: 2.26"
Gun: 16" Stainless - AR15barreels.com
Chrony Data:
Avg: 2408fps,
A virtual dupliate of the Remington Factory FMJ load.

Loader: Forest
Powder: 25.0gr H322
Bullet: .277 Hornady 130gr SST
Primer: Remington 9 1/2
Brass: SSA
Crimp: N/A
OAL: 2.31"
Gun: 16" Stainless - AR15barreels.com
Chrony Data:
Avg: 2154 fps, SD: 22.80 Temp: 48

Loader: Forest
Powder: 29.0gr WCC844
Bullet: .277 Remington 115gr FMJ
Primer: Remington 9 1/2
Brass: SSA
Crimp: Lee FCD
OAL: 2.26"
Gun: 16" Stainless - AR15barreels.com
Chrony Data:
Avg: 2265fps, SD: 27.16 Temp: 48

Loader: paulosantos.
Powder: 28.5gr H322.
Bullet: .277 Sierra 110 Gr. Pro-Hunters.
Brass: SSA.
Primer: Winchester #6 1/2.
Crimp: Roll Crimp.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.26".
Gun: Ko-Tonics 16" Chrome Lined 1:11" twist.
Chrony Data (@10'): Avg: 2483fps, Lo: 2464fps, Hi: 2515fps, ES: 51, SD: 14 Temp: 80

Loader: paulosantos.
Powder: 29gr H322.
Bullet: .277 Sierra 110 Gr. Pro-Hunters.
Brass: SSA.
Primer: CCI # 400.
Crimp: Roll Crimp.
Cannelures: Rolled my own using Corbin cannelure tool.
OAL: 2.28".
Gun: Ko-Tonics 16" Chrome Lined 1:11" twist.
Chrony Data (@ 10'): Avg: 2501fps, Lo: 2496fps, Hi: 2515fps, ES: 19, SD: 5 Temp: 80


Subsonic Loads

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
For more information see thread #344022

Loader: constructor
Powder: 11.6gr RE7.
Bullet: 130gr Sierra SBT
Brass: SSA small primer
Primer: n/a
Crimp: none.
OAL: 2.26".
Gun: 16" Model 1 1:10 twist, carbine gas system
Chrony Data (@ 10'): 11.7gr =1200fps
Note: Cycles the action!

Loader: constructor
Powder: 16.1gr 748.
Bullet: 130gr Sierra SBT
Brass: SSA small primer
Primer: n/a
Crimp: none.
OAL: 2.26".
Gun: 16" Model 1 1:10 twist, carbine gas system
Chrony Data (@ 10'): 16.3gr=1250fps
Note: Cycles the action!

Loader: constructor
Powder: 20gr RE19
Bullet: 130gr Sierra SBT
Brass: SSA small primer
Primer: n/a
Crimp: none.
OAL: 2.26".
Gun: 16" Model 1 1:10 twist, carbine gas system
Chrony Data (@ 10'): RE19 20gr=1040fps
Note: Cycles the action!


Specialty Loads - Only for those with Ko-Tonics 4 Groove 1:11" twist Barrels (or equivalent)

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

The following loads are only for the NEW Ko-Tonics 4 groove 1:11 twist barrels. Data orginally posted in this thread: Max Loads for Kotonics 6.8 SPC 1:11" twist barrels in the Industry Forums.

THESE MAXIMUMS APPLY ONLY TO OUR CURRENT BARRELS WITH 1:11" TWIST, FOUR-GROOVE RIFLING. DO NOT USE THIS DATA FOR OUR EARLIER BARRELS OR FOR BARRELS FROM OTHER MANUFACTURERS.

Maximum loads are not likely to be accurate, so I won't list accuracy information for these loads.

For our test conditions we created a worst-case scenario. Do not use that as an excuse to push these maximums. Do not start your own testing with these loads; start several grains lower and work up slowly.

Test conditions:
Initial pressure tests conducted with an 18" upper.
Large rifle primer brass, mix of Remington and Silver State Armory. Remington has less case capacity.

Cases used for testing have already been subjected to repeated loads.
After a maximum load is determined, we then run a batch of the same load and test them all through both 16" and 18" barrels to be sure that the maximum is truly safe.

KO-TONICS WILL NOT BE HELD LIABLE FOR ANY RESULTS OF USING THIS DATA. NO WARRANTY OR GUARANTEE IS EXPRESSED OR IMPLIED BY THE PRESENTATION OF THIS DATA. HAND LOADING HAS INHERENT RISK.

USE EXTREME CAUTION WHEN APPROACHING THESE MAXIMUMS!

Powder: H322
Bullet: Remington 115 grain FMC
Maximum Load: 31.5 grains
16" Velocity: 2,617 fps
18" Velocity: 2,681 fps
NOTE: Compressed load.

Powder: H322
Bullet: Sierra 115 grain Match King
Maximum Load: 31.5 grains
16" Velocity: 2,652 fps
18" Velocity: 2,685 fps
NOTE: Compressed load.

Powder: H322
Bullet: Sierra 110 grain Pro Hunter
Maximum Load: 32.0 grains
16" Velocity: 2,701 fps
18" Velocity: 2,722 fps
NOTE: Compressed load.

Powder: H322
Bullet: Barnes 110 grain Triple Shock X
Maximum Load: 32.0 grains
16" Velocity: 2,698 fps
18" Velocity: 2,728 fps
NOTE: Compressed load.

Powder: H322
Bullet: Hornady 110 grain V-MAX
Maximum Load: 32.0 grains
16" Velocity: 2,753 fps
18" Velocity: 2,755 fps
NOTE: Compressed load.

Powder: H322
Bullet: Speer 100 grain Soft Point (Spitzer)
Maximum Load: 32.0 grains
16" Velocity: 2,723 fps
18" Velocity: 2,742 fps
NOTE: Compressed load.

IPSC 'Major' Loads for 6.8 SPC
Loader: Constructor (in thread# 333098)
Powder: 28.5gr RE10
Bullet: .276 Barnes 120gr Solid
Primer: Remmington 7 1/2
Brass: SSA small primer
Crimp: none
OAL: 2.35"
Gun: 18" WOA 1:11" twist
Chrony Data:
27gr =2553fps
27.5gr =2605
28gr =2648
28.5gr =2692 (whch gives a PF of 323 - making Major)

Loader: Constructor (in thread# 340212)
Powder: 27.5gr RE10
Bullet: .277 Speer 130gr SP
Primer: CCI BR4
Brass: SSA small primer
Crimp: none
OAL: 2.255"
Gun: 18" WOA 1:11" twist
Environmental Data: 80DegF 7200' ASL
Chrony Data:
26.5gr = 2494fps (which gives a PF of 324 - making Major)
27.5gr = 2608 (whch gives a PF of 339 - making Major)