william iorg
06-02-2006, 06:19 PM
I am wondering if anyone has experience with low velocity, 1,000 fps and less, 7.62 X 39 handloads.
I have begun to work with the owner of an AK-47 in developing some low velocity hunting loads for predator and varmint control. This interesting rifle has an 18.5” barrel and is in “bullpup” configuration.
I have been shooting the Ed Harris designed Lee 155 grain gas check bullet both with and without gas check, using Javelina 50-50 Alox lubricant, Winchester brass and primers.
One load has shown itself to be a winner from the beginning; the Ed Harris inspired (I think) load of 5.0 grains of Alliant Bullseye. This load is remarkably accurate at 25 yards with five shot groups that will beat 1.0”. Considering the sighting system, a red dot laser, this seems to be very acceptable accuracy. Without gas check this load is averaging 1,092 fps with extreme spreads and standard deviations that run in the single digits.
When the bullet is gas checked the load averages 1,098 fps but the extreme spreads begin to climb, averaging 11 fps with the standard deviation running 7 fps.
With both of these loads the loudest noise is the action attempting to cycle and returning to battery.
I have loaded a few 174 grain FMJBT target bullets and the owner of the rifle has purchased some low velocity 220 grain JHPBT ammunition that was loaded in salvaged military cases. The powder for these loads appears to be Hodgdon 4227; the charge weight is 12.5 grains. My 174 grain FMJBT bullets and the commercial 220 grain loads, both over the 12.5 grain Hodgdon 4227 load, display the same good accuracy with velocity unfortunately running a little faster than desired.
I am specifically looking for anyone with experience using 165 grain .308 diameter bullets in the 7.62 X 39 at 1,000 fps.
I have attached a picture of the Winchester case, Lee 155 grain cast bullet, 174 grain FMJBT, 220 grain JHPBT and a military Berdan primed case.
As you can see, when the bullets are seated to a COAL of 2.186” there is not a lot of room left for powder.
This interesting little project has temporarily stopped my playing with the .25-35 and .25-35AI.
I have begun to work with the owner of an AK-47 in developing some low velocity hunting loads for predator and varmint control. This interesting rifle has an 18.5” barrel and is in “bullpup” configuration.
I have been shooting the Ed Harris designed Lee 155 grain gas check bullet both with and without gas check, using Javelina 50-50 Alox lubricant, Winchester brass and primers.
One load has shown itself to be a winner from the beginning; the Ed Harris inspired (I think) load of 5.0 grains of Alliant Bullseye. This load is remarkably accurate at 25 yards with five shot groups that will beat 1.0”. Considering the sighting system, a red dot laser, this seems to be very acceptable accuracy. Without gas check this load is averaging 1,092 fps with extreme spreads and standard deviations that run in the single digits.
When the bullet is gas checked the load averages 1,098 fps but the extreme spreads begin to climb, averaging 11 fps with the standard deviation running 7 fps.
With both of these loads the loudest noise is the action attempting to cycle and returning to battery.
I have loaded a few 174 grain FMJBT target bullets and the owner of the rifle has purchased some low velocity 220 grain JHPBT ammunition that was loaded in salvaged military cases. The powder for these loads appears to be Hodgdon 4227; the charge weight is 12.5 grains. My 174 grain FMJBT bullets and the commercial 220 grain loads, both over the 12.5 grain Hodgdon 4227 load, display the same good accuracy with velocity unfortunately running a little faster than desired.
I am specifically looking for anyone with experience using 165 grain .308 diameter bullets in the 7.62 X 39 at 1,000 fps.
I have attached a picture of the Winchester case, Lee 155 grain cast bullet, 174 grain FMJBT, 220 grain JHPBT and a military Berdan primed case.
As you can see, when the bullets are seated to a COAL of 2.186” there is not a lot of room left for powder.
This interesting little project has temporarily stopped my playing with the .25-35 and .25-35AI.