stoney1666
Member
just wondering how small a amount of powder (335) can you load and still cycle a AR with a 62gr bullet? i know it wont be sub sonic.
The question is very rifle dependent. There are too many mechanical variables to say this or that, will or wont, cycle.just wondering how small a amount of powder (335) can you load and still cycle a AR with a 62gr bullet? i know it wont be sub sonic.
Depends on many things like carbine length vs rifle length gas tube, buffer weight, recoil spring length/spring rate etc.The question is very rifle dependent. There are too many mechanical variables to say this or that, will or wont, cycle.just wondering how small a amount of powder (335) can you load and still cycle a AR with a 62gr bullet?.
And you can reference load data for slightly heavier bullet62 gr SFT SCIR H335 Dia .224" COL 2.260" Start 19.3 gr (2,678 fps) 47,500 PSI - Max 21.4 gr (2,887 fps) 53,600 PSI
63 gr SIE SP H335 Dia .224" COL 2.200" Start 22.5 gr (2,820 fps) 41,000 CUP - Max 25.0 gr (3,051 fps) 50,000 CUP
This was my first thought as well. My answer would have to be the book minimum for H-335, whatever that turns out to be. If you are flexible on which powder, that is another question.H335 is a ball powder that may not work well (squib), when loading below the published starting loads.
H335 is a ball powder that may not work well (squib), when loading below the published starting loads.
Gotta smile on that one. I used to use 700X and 45 Gr bullets in .223 cases to mimic a .22 Mag, but it was a bolt gun.2.5 grn. of shot gun powder will stick one in the barrel for sure! you know why I know.
CC
Yes, H4895 is a powder than can safely be downloaded to 60% of a normal max charge.I tested some reduced h4895 loads a while back and it turned out 17gr under a 55gr bullet would reliably cycle a plain jane 16" carbine gas system AR. Could probably go lower with lighter buffer weights and bcg. At some point I want to play around with a shorter gas system with an adjustable block just to see what I can get to cycle.