I sure hope he doesn't feel that way, RAM ["caught in the middle" I mean!]. It's just us girlz telling our tales of glory and sorrow is all! We all basically agree, and if we don't... why, we just tell the offender to leave! GI1For the benefit of the OP, all bullet trajectories are effected in the vertical and the horizontal by all sorts of things, I am just arguing that one of those things/elements is predominate in this case.
This is the nature of the shooting sports, we all have an opinion and things that seem to work best for us, and the poor new guy gets caught in the middle wondering who in the heck is right. SHOCKED2
Oh! A sling hold? Can have BIG diffs in PoI for sure!! Even with moderately good form, which for high accuracy level, has to be remarkably consistent!Thanks for the information guys. Part of the problem I'm sure is me. I was shooting from the prone position with a sling. My form probably leaves alot to be desired. Although I was pretty consistant with the 6 inches. I fired 15 rounds of my 93 DAG to check myself after. I plan on working up to 41.5 grains of IMR4895. That seems to be the magic load from what I've read.
Is it possible the barrel harmonics could swing the POI the other way with the increase of powder? If not do shooters generally leave the front post sight as is and move the rear sight for the corrections? My goal is to shoot 150 grainers at the 2 and 300 hundred lines and the 168's at the 600. Im just getting into some semi formal competition and right now I'm happy with every shot just being in the score ring. It will be awhile if ever that I can keep up the AR15 shooters.
I do love what is called a "heavy barrel" in M1A land. So it goes with my new SAI NM rifle. What I call a Heavy Bbl would be one with a muzzle diam of, let's say, 1" or more! A nice 1.5 inch'r would be desirable for sure! Now THAT would stabilize an M1A.Gus Fisher has commented that he believes it's the barrel whip........harmonics placing the barrel in a whipping motion such that different weight bullets leave the muzzle at different points in the cycle. My NM has a 3" different POI between 168s @ 2600 fps and 147s at 2750 fps. The difference is mostly vertical but also slightly to the right. Bedding the receiver in a very stiff stock and using a unitized GC will diminish this somewhat. A heavier barrel will also. The heavier bullet has a higher POI.