Author: ejcb
Subject: RS50 / TR140 - Load Development
Posted: May 11 2019 at 10:50am
he!!o,
Subject: RS50 / TR140 - Load Development
Posted: May 11 2019 at 10:50am
he!!o,
Looking to load some 174grn PPU FMJBT, in PPU Brass, with CCI LRPs.
Am loading for a Irish Contract No. 4 Mk2 (F).
Have some RS50 which appears to be TR140 rebadged, which was similar but slower to a .303 favourite, N140.
Have been advised to start at 39 grains and not to exceed 42.
Will be using this unscoped, and would like the load to match (as far as possible) the rear micrometer sight.
Will be shooting it at 100 and 300 during load development using a labradar so I can check ES / SD as well as groups.
The limiting factor will be my shooting and eyes, but if I manage a load that groups at 100, which has low ES / SD then I’m onto a winner.
Should I load in .25 or .5 increments, would like to try and get good accuracy but don’t want to waste time or ammo!