okay thanks. Also I was wondering if you could use hand gun powder like they do for subs.
you might be able to experiment with 30-30 light load data for reloading --30-30 and 6.8 case size is similar-- but the 30-30 doesn't require the specific gas pressure at the gas port like a AR chassis does, so they may not cycle the carrier correctly
SR4759 is listed for the 30-30 as a reduced load powder-- it is a very slow/bulky pistol powder that might work well--- try calling IMR and speaking with a technician
https://www.hodgdon.com/PDF/H4895 Reduced Rifle Loads.pdf
REDUCED RECOIL LOADS
.22-250 Remington - 55 grain Speer SP bullet, 13.0 grains SR 4759 powder, CCI 200 primer, Remington case. COL 2.350". MV 2002 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.220 Swift - 55 grain Speer SP bullet, 13.5 grains SR 4759 powder, CCI 200 primer, Winchester case. COL 2.650". MV 2000 fps in 26" barrel. (Based on the
Speer Reloading Manual No. 13.)
.243 Winchester - 80 grain Rem. PSP bullet, 25.5 grains SR 4759 powder, Rem. 9 1/2 primer, Remington case. COL 2.640". MV 2710 fps in 24" test barrel. MAP 51,300 CUP. (Based on the
IMR Smokeless Powder Reloader's Guide, April 2004.)
.243 Winchester - 100 grain Speer BT bullet, 29.0 grains H414 powder, Rem. CCI 250 primer, Winchester case. COL 2.635". MV 2270 fps in 22" barrel. (Based on the
Speer Reloading Manual No. 13.)
6mm Remington - 100 grain Rem. PSP bullet, 23.5 grains SR 4759 powder, Rem. 9 1/2 primer, Remington case. COL 2.735". MV 2400 fps in 22" test barrel. MAP 51,600 CUP. (Based on the
IMR Smokeless Powder Reloader's Guide, April 2004.)
.240 Weatherby Magnum - 90 grain Speer SP bullet, 20.0 grains of IMR 4198 powder, CCI 250 primer, Wby. case. COL 3.062". MV 1982 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.240 Weatherby Magnum - 105 grain Speer SP bullet, 22.0 grains of IMR 4198 powder, CCI 250 primer, Wby. case. COL 3.062". MV 2024 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.257 Roberts - 100 grain Speer SP bullet, 17.0 grains of SR 4759 powder, CCI 200 primer, Win. case. COL 2.770". MV 1945 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.257 Roberts - 120 grain Speer SP bullet, 19.0 grains of SR 4759 powder, CCI 200 primer, Win. case. COL 2.770". MV 2003 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.25-06 Remington - 120 grain Speer SP bullet, 21.0 grains SR 4759 powder, CCI 200 primer, Winchester case. COL 3.155". MV 1861 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.257 Weatherby Magnum - 100 grain Speer SP bullet, 22.0 grains of SR 4759 powder, CCI 250 primer, Wby. case. COL 3.150". MV 1975 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.260 Remington - 120 grain Speer SP bullet, 24.0 grains of XMP 5744 powder, CCI 200 primer, Remington case. COL 2.720". MV 2156 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.260 Remington - 120 grain Sierra SP bullet, 23.5 grains SR 4759 powder, Rem. 9 1/2 primer, Remington case. COL 2.780". MV 2280 fps in 24" test barrel. MAP 57,600 PSI. (Based on the
IMR Smokeless Powder Reloader's Guide, April 2004.)
6.5x55 SE - 120 grain Speer SP bullet, 17.0 grains of SR 4759 powder, CCI 200 primer, Federal case. COL 3.000". MV 1911 fps in 22" barrel. (Based on the
Speer Reloading Manual No. 13.)
6.5x55 SE - 140 grain Speer SP bullet, 17.0 grains of SR 4759 powder, CCI 200 primer, Federal case. COL 3.035". MV 1797 fps in 22" barrel. (Based on the
Speer Reloading Manual No. 13.)
6.5mm Remington Magnum - 140 grain Speer SP bullet, 22.5 grains IMR 4198 powder, CCI 250 primer, Remington case. COL 2.790". MV 1792 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.264 Winchester Magnum - 120 grain Speer SP bullet, 23.0 grains IMR 4198 powder, CCI 250 primer, Winchester case. COL 3.300". MV 1932 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.270 Winchester - 130 grain Swift Scirocco bullet, 24.0 grains of SR 4759 powder, CCI BR-2 primer, Federal case. COL 3.340". MV 2190 fps in 22" barrel. (From
American Rifleman, Volume 161, No. 11)
.270 Winchester - 150 grain Speer SP bullet, 26.0 grains of SR 4759 powder, CCI 200 primer, Winchester case. COL 3.270". MV 1957 fps in 22" barrel. (Based on the
Speer Reloading Manual No. 13.)
.270 Weatherby Magnum - 130 grain Speer SP bullet, 28.0 grains of SR 4759 powder, CCI 250 primer, Wby. case. COL 3.250". MV 2021 fps in 26" barrel. (Based on the
Speer Reloading Manual No. 13.)
7x57 Mauser - 145 grain Speer SP bullet, 22.0 grains SR 4759 powder, CCI 200 primer, Remington case. COL 2.800". MV 1842 fps in 22" barrel. (Based on the
Speer Reloading Manual No. 13.)
.280 Remington - 130 grain Speer SP bullet, 24.0 grains of SR 4759 powder, CCI 200 primer, Rem. case. COL 3.205". MV 2024 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
7mm Remington Magnum - 130 grain Speer SP bullet, 26.0 grains of SR 4759 powder, CCI 250 primer, Rem. case. COL 3.285". MV 2084 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
7mm Remington Magnum - 145 grain Speer SP bullet, 28.0 grains of SR 4759 powder, CCI 250 primer, Rem. case. COL 3.280". MV 2112 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
7mm Weatherby Magnum - 145 grain Speer SP bullet, 29.0 grains of SR 4759 powder, CCI 250 primer, Rem. case. COL 3.360". MV 1970 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.30-30 Winchester - 100 grain FP bullet, 15.0 grains of SR 4759 powder, CCI 200 primer, Winchester case. MV 1834 fps in 24" barrel. MAP 23,400 CUP. (Based on the
Hodgdon Data Manual, 26th Edition.)
.30-30 Winchester - 150 grain FP bullet, 17.0 grains of SR 4759 powder, CCI 200 primer, Winchester case. COL 2.550". MV 1794 fps in 24" barrel. MAP 35,600 CUP. (Based on the
Hodgdon Data Manual, 26th Edition.)
.307 Winchester - 150 grain Speer FP bullet, 38.0 grains of H322 powder, CCI 200 primer, Win. case. COL 2.520". MV 2146 fps in 20" barrel. (Based on the
Speer Reloading Manual No. 13.)
.308 Winchester - 130 grain Speer HP bullet, 29.0 grains of IMR 4198 powder, CCI 200 primer, IMI case. COL 2.615". MV 2185 fps in 22" barrel. (Based on the
Speer Reloading Manual No. 13.)
.308 Winchester - 150 grain Speer RN bullet, 25.0 grains of SR 4759 powder, CCI 200 primer, IMI case. COL 2.490". MV 1925 fps in 22" barrel. (Based on the
Speer Reloading Manual No. 13.)
.30-06 Springfield - 150 grain Speer SP bullet, 28.0 grains of XMP 5744 powder, CCI 200 primer, Win. case. COL 3.250". MV 2052 fps in 22" barrel. (Based on the
Speer Reloading Manual No. 13.)
.30-06 Springfield - 165 grain Speer SP bullet, 25.0 grains of SR 4759 powder, CCI 200 primer, Win. case. COL 3.250". MV 1941 fps in 22" barrel. (Based on the
Speer Reloading Manual No. 13.)
.308 Norma Magnum - 180 grain Speer RN bullet, 31.0 grains of SR 4759 powder, CCI 250 primer, Norma case. COL 3.220". MV 1918 fps in 24.5" barrel. (Based on the
Speer Reloading Manual No. 13.)
.300 Winchester Magnum - 150 grain Speer SP bullet, 28.0 grains of SR 4759 powder, CCI 250 primer, Win. case. COL 3.330". MV 2028 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.300 Winchester Magnum - 165 grain Speer SP bullet, 29.0 grains of SR 4759 powder, CCI 250 primer, Win. case. COL 3.340". MV 2000 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.300 Weatherby Magnum - 150 grain Speer SP bullet, 29.0 grains of SR 4759 powder, CCI 250 primer, Rem. case. COL 3.560". MV 1970 fps in 26" barrel. (Based on the
Speer Reloading Manual No. 13.)
.300 Weatherby Magnum - 180 grain Speer SP bullet, 35.0 grains of IMR 4198 powder, CCI 250 primer, Rem. case. COL 3.560". MV 1988 fps in 26" barrel. (Based on the
Speer Reloading Manual No. 13.)
.303 British - 150 grain Speer SP bullet, 25.0 grains of SR 4759 powder, CCI 200 primer, Rem. case. COL 3.075". MV 1925 fps in 25.25" barrel. (Based on the
Speer Reloading Manual No. 13.)
.303 British - 180 grain Speer RN bullet, 25.0 grains of IMR 4198 powder, CCI 200 primer, Rem. case. COL 3.075". MV 1839 fps in 25.25" barrel. (Based on the
Speer Reloading Manual No. 13.)
.32 Winchester Special - 170 grain Speer FP bullet, 18.0 grains of SR 4759 powder, CCI 200 primer, Win. case. COL 2.560". MV 1710 fps in 20" barrel. (Based on the
Speer Reloading Manual No. 13.)
8x57 Mauser - 150 grain Speer SP bullet, 21.5 grains SR 4759 powder, WLR primer, Winchester case. COL 2.945". MV 1960 fps in 25" test barrel. MAP 37,000 CUP. (Based on the
IMR Smokeless Powder Reloader's Guide, April 2004.)
.340 Weatherby Magnum - 200 grain Speer SP bullet, 33.0 grains of SR 4759 powder, CCI 250 primer, Wby. case. COL 3.560". MV 1970 fps in 26" barrel. (Based on the
Speer Reloading Manual No. 13.)
.35 Whelen - 280 grain Lyman #358009 cast lead bullet, 25.5 grains of SR 4759 powder, Rem. 9 1/2 primer, Rem. case. COL 3.040". MV 1654 fps in 24" barrel. MAP 25,300 cup. (Based on the
Lyman 47th Reloading Handbook.)
.350 Remington Magnum - 180 grain Speer FP bullet, 28.0 grains of SR 4759 powder, CCI 200 primer, Rem. case. COL 2.800". MV 1926 fps in 22" barrel. (Based on the
Speer Reloading Manual No. 13.)
.350 Remington Magnum - 250 grain Speer SP bullet, 26.0 grains SR 4759 powder, CCI 200 primer, Remington case. COL 2.800". MV 1650 fps in 22" barrel. (Based on the
Speer Reloading Manual No. 13.)
.358 Norma Magnum - 180 grain Speer FP bullet, 32.0 grains of SR 4759 powder, CCI 250 primer, Norma case. COL 3.340". MV 2013 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
9.3x74R - 270 grain Speer Semi-SP bullet, 25.0 grains of SR 4759 powder, CCI 200 primer, RWS case. COL 3.665". MV 1537 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.375 Winchester - 248 grain Lyman #375248 cast lead bullet, 20.0 grains of 2400 powder, WLR primer, Win. case. COL 2.450". MV 1595 fps in 20" barrel. (Based on the
Lyman 47th Reloading Handbook.)
.375 H&H Magnum - 235 grain Speer SSP bullet, 30.0 grains SR 4759 powder, CCI 250 primer, Winchester case. COL 3.600". MV 1701 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
.378 Weatherby Magnum - 249 grain Lyman #375248 cast lead bullet, 25.0 grains of Unique powder, Rem. 9 1/2 primer, Weatherby case. MV 1760 fps in 26" barrel. (Based on the
Lyman 47th Reloading Handbook.)
.45-70 Government - 300 grain Hornady HP bullet, 25.5 grains SR 4759 powder, Federal 210 primer, Win. case. COL 2.550". MV 1300 fps in 29.5" barrel. (Based on the
Hornady Handbook, Sixth Edition.)
.45-70 Government - 325 grain RCBS #82045 cast lead bullet, 26.0 grains SR 4759 powder, CCI 200 primer, Win. case. COL 2.463". MV 1314 fps in 26" barrel. (Based on the
Speer Reloading Manual No. 13.)
.458 Winchester Magnum - 385 grain Lyman #457124 cast lead bullet, 18.0 grains of Unique powder, WLR primer, Winchester case. COL 3.012". MV 1315 fps in 24" barrel. (Based on the
Lyman 47th Reloading Handbook.)
.458 Winchester Magnum - 400 grain Speer Flat-SP bullet, 26.0 grains of SR 4759 powder, CCI 250 primer, Winchester case. COL 3.125". MV 1262 fps in 24" barrel. (Based on the
Speer Reloading Manual No. 13.)
personally, the 223 in an AR chassis is the epitome of a reduced load, if your shooter cant handle the recoil from a 223AR chassis, then I feel they are not ready for center fire yet
My kids started with my heavy bench rest 20" barrel 223 colt (11 pounds) when they were 6YO---- the heavy weight helps reduce the recoil even further--- then when they were comfortable shooting it at the range with sand bags I moved them to a lightweight carbine in 233, then 6.8, then larger center fire bolt guns--- always proceed with caution and start with only 1 round in mag with semi auto and new shooters until they understand the safety aspects --- tech them to shot with both eyes open too