Remember, old dry stocks are loose which makes your groups "loose".
How is your bedding and is your barrel free floating?
http://www.surplusrifleforum.com/viewtopic.php?t=529
My appologies for being away from this still (then) open thread: Ken
Yes my bedding is good. I added a pad of epoxy around the recoil lug and bottom of the receiver in the same area. I also made a similar pad in the rear attachment lug area and it also fills the gap around the back of the stock and the rear off the lug/receiver area up to the trigger asy.
I cleaned of the cosmoline from the fore stocks barrel channel as well as the upper hand guards barrel channel. I then sanded with 60 grit paper around a dowel. I trial fitted the barreled action in the stock after applying a thin putty snake wound helically around the barrel. I then measured the putty and adjusted the stock again. I then reapplied the cosmoline. it has a 1/16" free float.
This seemed to help as did the trigger job which took some time to adjust to safe limits. A front site adjustment was also made.
I also re slugged my barrel and found my first ones to be askew! The bore does actually mic out at .312" and NOT .315"!
I have tried the 180gn. RN Speer core loc in .311" now as well.
they don't seem any different than the 150s which I have been getting 4" groups with @100yds
I know they are moving @ 2567fps in the 180;s and 2678 fps in the 150s with.......... (Ill fill you in with the powder charges I c
dont have the full load info in front this is memory here.)
I did notice that the variation is less in the 180s with the crony readings.
I don't know about them as they pack quite a bunch for whitetails however.
I was told by a friend of mine I should actually try about 12gns of red dot as a powder. Im not sure about a shotgun powder in a rifle as the initial pressure spike concerns me,as does the consistancy of measuring out such low weight powder charges
my big problem now is powder speed. Im not using the burn efficiently with this short barrel as there is an ample muzzle flash.
Admittedly Im still using 3031.
and a hearing aid lol
I just looked at the thread you sent me bigedp51.
The epoxy putty I used was in the same places as the brass shims were however my putty also encompassed the sides of the lug and the rear and sides of the rear attachment lug pocket. I used my polishing wheel I use in knife making to do my bolt and a new trigger was made from 5160 steel both are mirror polished.
I will considder making a new front sight post.
I have also been thinking of how my gun chambers the rounds. It seems to me that the oversize military way of chambering a rifle may also be at play. How do I check the chamber size? I've thought about annealing an entire case and trying to fire form it. I would like a casting perhaps but want a DIY solution for that.