Recent content by Jerry H

ARA is by far the largest RF bench rest organization by participation and number of clubs. https://www.americanrimfire.com/index.php/index.php

It looks like jun,aug, and sep results are missing from Boerne

Just checked and it looks like there are still missing scores from June and July

Next ARA match at Boerne June 2

Traditional BR chambers with .100 or more engraving length are usually cleaned after each target. Position shooter typically clean at greater round count intervals. I suspect the lighter engraving is more suitable for extended cleaning intervals. Probably related to carbon ring build up rate.

With your ".660" depth, what is the stick out dimension from the back of the rim to the barrel or from the front of the rim to the barrel?

2022 Nick Marino 80

Thanks, I will contact him.

I talked to Neil and he hasn't made the Hunter class loupes in years and I don't they had a 224 ring in them either which is what I was looking for for RF.

Where can I get a NBRSA scoring Loupe?

no

I used an interference thread fit acetal adjustment barrel to eliminate minute adjustment variations. Unfortunately, it acts like a solid lockup tuner that is peaky.

The new tuner design was a complete success in one aspect and an utter failure in another aspect. Oh well, good thing I only built one.

I have had better luck with polygons over the years. In benchrest, the thinking is you want the slowest twist that will stabilize just enough to get to the target. 14 twist used to be the norm in short range CFBR and now it is 13.75. 16.5 is the norm for 50 yd RFBR. Considering the variables in...

The barrel would be a properly taper lapped, R5 or possibly a reverse taper contour, polygon rifling 16.25 twist. The trigger would be a Flavio Whisper, set sub ounce. Tuner of my own design. The stock would be a RoTex low profile. The action would be a 90 degree LPRB, round aluminum sleeved...