Your idea of using Hornady cases carrying the .275 Rigby headstamp is nostalgic. Read more
The internet shows some astounding velocities for the .303 Epps, so I've decided to have a rifle built in this calibre.
62.5gn of Re-19 would have driven the 90gn Sierra H.P at about 3500fps.
If I were you, I'd try within two grains of your regular powder charge with the Woodleigh 225gn bullet.
. I've used this .25-20 load on goats out to 150 metres with excellent results.
When fired in this rear-locking rifle, cases will not withstand as many full power reloads as .308 cases fired in a bolt-action rifle.
Its sectional density of .250 compares closely with those of the following calibres and weights: (see article)
Neither neck reaming or turning will be necessary. Cases will not need fireforming,
Winchester departed from Page's suggestions regarding neck length and shoulder angle.
Does an off centre primer strike have any effect upon accuracy?
It had features never before seen on a lever-action - a detachable box magazine and a trigger that came a way with the lever.
It took 1- 1/2 grains more powder with the coated bullets to equal the pressure developed with the uncoated bullets.
I rely on just one good load that's proved effective on everything from red stag to water buffalo, moose and grizzly bear.