Have just tried N140 with some reloads which Cyres kindly helped out with whilst I wait to sort my reloading kit. N140 worked well with the 69g TMKs producing 0.6 inch 3 shot group off wobbly sticks at max load of 25.6gr. There were just some slight signs of reaching the max pressure such as very slight cratering of one of the primers but no ejector marks on the casing at all, so I may try another load wound back 0.1 or 0.2 grains to be on the safe side. It didn't fare so well with the 60g Vmax though even though the load was lightly compressed as I failed to better a 0.9 inch group at any load between 25 and 26gr. The rifle's twist is 1/8 but it shoots factory 50 grain Accutip really well over 200yds, with moa groups, so I know it will stabilise a lighter bullet weight well. It also shoots Hornady 55g factory at sub moa.
I'm thinking of sticking with the N140 for heavier bullet loads (69g and upwards) but what do others use for 50 to 60gr? I'd like to stick with VV powders as they work out cheaper than something like Varget and seem very clean burning too plus both my local stockists keep plenty of VV in stock. Is there anything to chose between N130 and N133 for these bullet weights?
I'm far more concerned with accuracy than velocity by the way. I'd rather be sure of hitting what I aim at every time than missing at high velocity!