I had my BRJ accurized by Savagegunsmithing.
It used to shoot .4"'s and now I have got a best 5 shot group of .1" @ 50 yards.
The trigger breaks like glass at 10 OZ, I also got the 1/8" thick bottom metal, does not bend like the stock metal.
I found mine shoots best with 20 inch pounds on the action screws, couldn't do that with the stock bttom metal without hurting the stock.
The crown is first rate.
The lapping is to get rid of the high spots in the barrel that most Savage barrels have in them and does help the groups.
A bunch of guys on another site have sent their rifles to them and all have been very pleased wth the results.
It was money well spent. It usually shoots in the .1" to low .2" range depending on the wind and how well I'm shooting.
The .1" group was grease mark to grease mark, it measured .069" center to center.
If you want you rifle to shoot really good, I highly recommend Savagegunsmithing, the smith, Scott is a really great guy to talk with, very knowlagable. He also builds long range Savge CF rifles. Mine is a 22 LR, but the guys with the .17's say theirs shoots fantastic.\
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John K