Speed checked my load while Shooting gongs and fuck this rifle is a little lazer.Lapua brass win lr primer 2209 130gn Sierrra HPBT 18" barrel 2925fps.
best so far is about .6-.7 worst is about 1.3/.4.
Ran a pressure ladder and am only playing at the top end so in all honesty good just be either side of the 'on' node. Would probably have been better put as "havnt found a load that shoots worse than 1.3"
I'm were I want to be at with minimal Fucking around so I'm impressed with the usability of this rifle and Cal.after my little gong session this arvo in shitty weather I know were this thing is going to hit.
Yeah man cant complain with results like that.
Wish I could get out to the range more than once a month. Might make this process a little quicker
I am currently working up a load for my Howa in 6.5x55 using 140gr Accubonds with 2209 Fed 210 Primers and PMC Brass. I have been using a COAL of 3.050" but that seems to be longer than anyone else. I haven't had chance to shoot groups with it yet but 45.0gr of 2209 gives me slight ejector marks. Has anyone else tried this projectile?
Might be the brass is too soft or projectile seated deep. My coal is about 79mm
My howa printed (very) slight ejector marks seemingly at random throughout my pressure test, It also prints em on factory SnB which is pretty low pressure. I got marks at 45.5 but none at 46,46.5 or 47.
Think 45 is near max with 2209 and 140's though no?
I get slight ejector marks using a touch over 44gn of 2209. I've had two of the most thorough minds check my brass and they found the expansion to be VERY mild. Almost non existent. If you're not getting any more velocity it might simply be the limitations of your barrel. I had to concede that 2735ft/sec would be my max velocity on a hot humid day. Unburnt powder in my suppressor too
Just beginning to stray away from my standard worked up load a bit. Making use of my donated brass (cheap hunting ammo). Surprisingly I found the federal brass to be the worst to rework back into shape. Very loose neck tension. The PPU brass needed a run though the full length die. Very tight but they showed consistant marks when I was done. Only 1/30 needed to be flicked.
That being said - I've always found federal to be the most accurate off the shelf hunting ammo. What have you guys found in your swedes?
Blue box is the only stuff I shot in mine, was ok. The Snb 140's shoot better for me. Only 2 things I tried before switching to handloads.
The SnB brass seem pretty average. Compared to the norma stuff I have anyway. Shows pressure signs alot earlier
Yeah ADI have max as 44.0gr for AR2209 but I was told this was to keep them safe with all the old mil surp rifles out there.
I too had slight ejector marks at 43.0 as well but figured it was ok when 43.5 didn't have any. 46.0gr did give me a very slightly sticky bolt lift but not hugely noticeable.
I've settled on 46.5 of 2209 with 123's, pressure was fine to 47.7 but groups opened up again.
No chrony so have no idea of speed, but it groups so damn well at 46.5 I'll run with it.
Bookmarks