My rifle in 22 Rem Jet, is an item I purchased in 1965. It is made by Harrington and
Richards, as a Model 490 Topper Junior.
In my case, I have never been able to find a load that was as accurate as I wanted, although many have been good enough for ground hogs in Pennsylvania, ground squirrel in California and jack rabbits in both Utah and Arizona.
My favorite load, which is still under development, is 14 grains of WW680BR under a 45 grain .223 bullet from Hornaday. I use a CCI 450 small rifle magnum primer and Remington cases. I will probably try a new load using Accurate 1680 powder, as WW680BR has been dropped from the line.
This load works well in my rifle, but caution is the first order of business, along with
safety. Start lower and work up. Slug your bore and adjust your components accordingly.
What is safe in my rifle may not be in yours. This is lessons I have learned, so don't hold
me responsible. I disclaim any liability.
I ran my load over a chronograph and found a velocity of 2850-2900 fps from my 22" barrel, with no signs of excess pressure.
The yield was just over one inch group at 100 yards, for a 10 shot string, a far cry from
the one hole groups my Savage 223 yields.
A recent article from Handloader magazine may hold some promise for a better load.
(Dec. 2009 #263)
http://www.riflemagazine.com/magazine/PDF/hl263partial.pdfI will go this route as time permits.
FrogFoot25