I do not remember the COL to lands but I will check notes later to see if I wrote it down.

They would NOT fit in the magazine. I bought a long action mag and bolt stop but never used them.

That being said kissing the lands is way overrated when your throat is of the proper diameter, perfectly concentric to the bore and you have the right primer and powder for consistant ignition with low SDs. Mine shot very well with a case full of H4350. No Tikka I have loaded for has ever had a throat short enough to contact the leade with the bullets I shoot and they have all shot beyond my expectations. No chance of ever contacting makes for a safe and reliable rifle in the field. When I have that and I am seeing one hole precision I'm happy.