TKH:rick137,
Thank you for your honest, straight forward response. We are in complete agreement about equipment.
I have shot RFBR for quite sometime and I would like to make two points that may help others understand my initial question.
A rimfire action has much more influence over accuracy than a centerfire action in a rifle build. It has to do with ignition.
Centerfire has that wonderful self contained primer in the middle of the cartridge. Makes ignition very consistent from shot to shot.
Powder in a centerfire case fills, or nearly fills the case. Rimfire cases are less than 10% full.
Rimfire depends on the firing pin striking the case head to cause ignition.
If two rimfire actions are made with the same design and with the same precision, (eg. bolt centered, threads centered, action face square, locking lug contact, trigger hanger properly located, etc. etc.)
The action that delivers the most consistent strike to the cartridge case (location of strike, and depth of strike,
will more often than not be the more accurate . Some action designs make achieving this consistency easier than others.
The other point is rail guns rarely beat bag guns in shooting for score, or even in group matches.
Rail guns have there uses but are not often used in open competition.
TKH
Thanks you for a most interesting post. However the etc. etc. in "(eg. bolt centered, threads centered, action face square, locking lug contact, trigger hanger properly located, etc. etc.)" is what my high school English teacher would call deliciously vague. Any further elucidation for my uplift and edification would be most appreciated.
Surprised that railgun support not the ultimate but so be it. What do you mean by bag guns? Mechanical rests with bags at interface of stock and rest? If so, from your remarks it would seem a one-piece mechanical rest, with free recoil?, takes those honors.
From my perspective and neglecting the operational aspects the ideal rest minimizes both the rigid body rotation of the weapon system during recoil and the vibrations in the barrel. Interesting question is whether it is possible to do both minimizations simultaneously or whether there has to a compromise.
If it were not for Covid-19 I would come to Kentucky to watch the match and would be great to talk. I hope someone will make a video of the match.
Good shooting at the match,
Rick