Guys I just picked up a Tikka T3 Varmit in .223 to use as a trainer and to save barrels on my other rigs. I have been doing alot of research but want to know from the guys that run Tikka what to upgrade first. What is prone to breakage on these rifles? Besides dies, brass, and some bullets I think the first order needs to be a Manners T4 or a KRG chassis. I am also wondering about an alloy replacment for the factory bottom metal to fit the T4 so I can run the factory mags. I also want to upgrade the bolt handle, bolt shroud, and recoil lug to a meltal units from Mountain Tactical. I need this rig to be as robust as possible as I plan I shooting it the most. As far as handloads go my rifle has the original 8" twist so I was looking to use the 77gr MK or the 75gr Berger VLD with varget as it is the only fast powder I have on hand at the moment. Give me a little direction on this project If you can.