SCJ429 wrote:I might have missed what projectile you are using but I load for a Tikka T3 SV in 22/250. It shoots 55 grain Vmax in the low .2s at 100 and 1.2 at 300. I load them 2.480. It should get you in the ballpark if you use Vmax.
I've been using Hornady Z-Max, Sierra Blitz Kings and now trying to work up a load for Sierra SBT Game Kings. I have only loaded all these to just below 60mm COAL which is about 3mm shorter than your load.
The best group i have managed is .5in @ 100m for a 5 shot group, ill be interested to see how i go when i measure it up properly.