Re: Question about precision shooting
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TOP PREDATOR</div><div class="ubbcode-body">when it comes to the action and serious precision shooting, it (the action) is the foundation of what everything is built around.
it's sort of like having an unbalanced wheel on your car. it may not be bad of a shake at 25 mph, but at 55 mph the car shimmies all over. 55mph is more a performance speed than 25, and if all you drove is 25mph all day, you can live with that unbalanced wheel. however at 55 mph not so much - think of precision shooting as driving @ 55.
most of the custom actions (rim or centerfire) are "trued" - meaning they are the same thickness throughout the entire action, the action mounting bolts / holes are on absolute center, and other features.
the fit of the also trued bolt, bolt face, etc. is also more engaged with the action...the goal to to make (as close as possible) one piece thats a perfect fit leaving no gaps or spaces.
these all act together to start a platform that will not (or supposed to not) experience odd harmonics, movement, torque and other opposing forces that could transfer over to the barrel and other components acting like a tuning fork.
bedding an action reduces alot of it, however having that trued action from the start brings everything to a higher level.
in other words instead of having a bolt face that 1 time is 89.5 deg perpendicular to the chamber face, then maybe 91 degrees the next, a trued action and bolt keeps it 90 deg flush each time, all the time. or at least as close as it can get.
all of that may not seem much, but combined with the proper barrel, trigger group, stock, and other components adds up to a significant difference downrange.
it's that last consistant 1/2 to 1/8 group improvements that cost the most whether talking rimfires at 50 yards or centerfires at 500 yards. and part of reaching that goal are the custom or trued actions that play a role in it.
back to the speed and car analogy - i can't afford to go 55, i get impatient at 25, but i don't mind setting the cruise contol to 40 as gas prices are too much for me to do 55 all day.
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This is a great explanation and really clears up a lot. Thanks you always have wise things to say about serious subjects