Originally Posted by .260 Rem
Another question from a newbie. What's the general concensus on fire lapping, hand lapping or just shoot-clean, shoot-clean, etc for breaking in a new barrel? Or is it lap the barrel then still shoot-clean as usual?
New factory barrel? If I had access to a borescope I'd take a look at it to get a general sense of the machining and then I'd break in the barrel normally and see how it shoots.
If this is a custom barrel you shouldn't need to polish or fire polish the barrel IMO.
If it doesn't shoot well and fouls badly after the first 100 rounds or so I would consider having a smith polish it, or fire polish it with Tubbs.
I have used Tubbs on a Factory Tikka varmint in 308 and it was effective...much easier to clean and a measureable improvement in accuracy. From about 1.25MOA with 168gr fed match to about 0.8 or 0.9 MOA groups...
Best load with this rifle after Tubbs was a ten shot group about 0.68" at 100 yards using 42.0gr of Varget behind 175Gr SMK.