I took advice of here, I think it was from Tacfoley to make a dummy round which fits my rifle perfectly then the middle load for a 77 grain bullet and N150 powder.
No signs of over pressure on the cases so far so I'll stick with the same charge for now, I'm more interested in accuracy than velocity.
Hope that makes sense.
Daystate Air Ranger FAC - Kral Bullpup & NP03 - CZ 452 .22lr - Lithgow 17hmr - Remington 783 .223 - Franchi 612vs 12G - Renato Gamba 12G O/U - Hatsan Escort 12G
Nostalgia isn't what it used to be.....