Many thanks to all the respondants, very much appreciated. My apologies for the long-windedness of the following —
Additional info:
New R-P cases, BR case prep… deburred flash hole, weight checked the cases to 2 grains, deburred case necks.
Loads… dropped from a BR tuned powder measure and then trickled to desired weight. "Good" first loads were then varied by .5 grains for range of ± 2 grain from “starting load(s). The IMR 4350 flat out didn’t shoot, so thinking maybe Varget, H4831, etc.
Seating depths varied from at lands to - 0.100 off. The “bigger” jumps… definitely, positively… the poorest performer(s) of the three shot sequence, each one was separated by 1 1/2 inches (vis-a-vis, large triangle).
Buttstock fit is snug and the bolt is (very) tight. F/E is pretty darn snug, as well. The F/E has zero contact w/ the barrel.
IIRC… there “could be” an issue w/ scope rail being too tight to receiver… checked when I first got the rifle, yup (relieved it .080”). Now considering the F/E to receiver face fit re: relieving it by similar amount.
I’m a “bag squeezer” i.e., not using a Farley (joystick) front rest.
Ross, not having BR dies for this ctg, I load at home, then make a range trip. To tell the truth, I ran out of ammo before I got a chance to try the no F/E technique. Can I assume bag/barrel contact would be forward of the hagner assembly ? FWIW, I did vary the F/E screw tension/tightness.
RE: no F/E… brings up a question— if it “does shoot” w/o the F/E, what needs to be “fixed” so it will perform as well with the F/E in place ? Finally, is the Wilson bbl on the 130- series a “good” barrel ? FWIW, I’ve borescoped the barrel and see no obvious defect(s). Working up loads is tedious, as we all know. I have several manuals to work from, but does anyone have other powder suggestions beyond 4064 and H4831 ?
Cleaning… I use Boretech Eliminator… patch out the carbon, 2 wet, soak for 5 min. dry patch, then brush w/ Eliminator. Sets for 10 min, the dry patch. Follow w/2 wet (they come out blue) soak 5 then dry. Third set of wet AGAIN show blue stripes (from lands).
Decided to soak overnite. Finger cot over muzzle, filled bore. Drained Boretech was bright blue. First patch after draining was blue, the second showed little blue, the third was lightly “steel grey.” A wet patch follwed by a dry one… no blue. Then 10 strokes of JB on a wrapped brush (to polish). Dry patch showed slight grey, JB residue IMO. Lubed w/ Rin=mfire Blend as rust preventative. Wiped dry before firing.
Regarding bags… conflicting opinions on this…
Boyd Allen (over @ BRC) regarding a hard front bag… “After adding more sand it tracked better, and shot worse. There was an immediate, and significant increase in vertical.”
Greg Walley at Kelbly’s Inc. (again, over @ BRC) “We’ve fixed a lot of bad guns-barrels-scopes-actions over the years by simply removing a bit of sand from both sandbags.”
Tony Boyer points out in his book that hard front bags opens group. (Tony is the world’s winningest BR shooter.)
I can use my heavy sand filled rearbag (for BR comps) as a front. Will try, but as w/ “no F/E” how do I get similar accuracy via the hard front bag… if shooting from a field position (i.e., hunting) ? My "hope" was to use this #1 in the field at 250 - 350Y so sub-moa groups are "necessary."
I could fit a Leupold 3.5-10X that I know is good, but dang that means either re-sighting in my 330 Dakota… or buying ANOTHER scope, with the cost being about about equal, considering the cost of the Dakota ammo ! :shock:
Again, my heartfelt thanks,
Richard