303 Epps reloading data ?

TR Treeman 2 years ago

hi ! - I am wanting to see other folks reloading data for the Epps in .303, I have always found it more pleasant to do my load development along side someone else's experiences - nice to build the bigger picture.
I only have S365 to load with at present, but part of this post is to have other reloaders experiences with import propellants.
I am loading a 174 gr bullet at 77.8 mm CTL S365 at 51.6 gr for 2630 fps at present - its a 107 % compressed load.

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TR Treeman OP

Reading through this post again, I see the reference to speed being lost due to case forming. My experience and others that reported the same, was that previous accurate re-loaded ammunition shot well whilst being fireformed. This was the case in my 243AI.

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Myself and the other guy with same set up both had velocity highs and lows and no grouping. I think that the issue will be more evident the greater the case capacity and the greater the volume gain.