Yeah, Baby!
Nolser 55gn Ballistic Tip Varmint with CCI 400 primer & 8.3gn Trailboss out of a friends Tikka = roughly MOA or maybe a bit tighter 100m (approx).
Zmax 50gn with CCI 450 (small rifle magnum) primer and 8.1gn of Trailboss out of my FrankenZastava = well inside MOA @ 100m.
B&T VarmintR 40n with CCI450 & 8.3gn Trailboss = roughly MOA. To get the VarmintR shooting ok in my rifle, i had to do some batch sorting and they still arent the greatest in my rifle, so i'll keep them for when i (eventually) finish this WildCat build. Thinking i need a 1:14twist barrel for that project.
So, i'm going to load up a heap of Zmax 50gn with SRM primers and 8.1gn of Trailboss. SIghted dead on at my (approximate) 100m gives me 1" high @50m (approx).
The Small Rifle Magnum primers certainly seemed to help with a consistent burn. Accuracy was all round more consistent and the ES & SD on Brett's Chrony where all well down. I'll collate my data and post a bit later.
Thanks Brett. Your chrony will be in the post sometime this week. It has been very handy and i owe you a beer or ten.
Happy that things are finally working well.
edit: corrected load data; see screw up below