trekker.. first off you got yourself a great rifle there. You may not even need to break the bore in. I would get some 250 grain Shockwaves and a pound of loose Triple Se7en powder. Load 100 grains of the powder and a shockwave and have at it. I think you will be surprised at how accurate your rifle is. Be sure and swab the barrel between shots.

Some of the rifles that need to broken in do benifit from shooting a box of ball-ets, maxiballs, or even roundballs through them. Some rifles do not need it. Some even need to be lapped.

This is not usually the case with Thompson Center because of the high standard of quality they use in their rifles. Try the rifle first before you do anything. Just clean it good when it comes to your door, tell it how happy you are to have it join your family, name it, caress it, Man I get carried away sometimes...... Really, just shoot it. I think you will not have to do anything to it. If you do there is always time for that. The Shockwaves will do a good job for you as will most of the T/C projectiles...

Forgot to add... stay away from the bore butter. Bore butter is a great conical lube but in my opinion I season a fry pan not a rifle barrel. Clean the barrel and oil it. There are many that will disagree with me... That's all right. Their rifle they way. I want a clean rifle. I run a patch with alcohol on it to clean the oil out before I load, pop a cap and load it as always... Swab between shots and your all set.

Good luck with your new rifle ..... keep us posted on it..