<span style="font-weight: bold">Not necessarily your best shooting, most expensive, or the 'crown jewel' of your collection; just the one that you get the most enjoyment out of.
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Personally, mine is my cheapest centerfire rifle-
SPS Tactical in a B&C stock and an aftermarket trigger. I'm not preoccupied with shooting the tiniest groups I can, yet this rifle shoots phenomenally well. I have a blast with it because it's so easy to load for and can outshoot me. Definitely less stressful than some of my more expensive rifles where I'm trying to shrink the groups by that last .05-.10 MOA.
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Personally, mine is my cheapest centerfire rifle-
SPS Tactical in a B&C stock and an aftermarket trigger. I'm not preoccupied with shooting the tiniest groups I can, yet this rifle shoots phenomenally well. I have a blast with it because it's so easy to load for and can outshoot me. Definitely less stressful than some of my more expensive rifles where I'm trying to shrink the groups by that last .05-.10 MOA.