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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...

Phil's single agg was 2491.67. I think you mistyped. I don't know Phil or anything about his rifle. The rumor was that he shot it with the identical lot of Midas+ that Chuck was using at the time. There are times when everything just comes together. The long term performance of a rifle/barrel is...

Records: For a single 6 card agg I believe it is Phil Dorman's 2491.67. The nats are a single 6 card agg. For a season, it is Chuck Morrell's 2403.7162. Depending on your criteria for determining "The most accurate rifle" either of these would be a better fit than black death that holds the nats...

I hesitate to name specific numbers as they are often mistaken because of variation in measurement methods. Lead is quite easily deformed. Each gunsmith will have his preferred chamber depth. When I have compared them, many are quite close to one of the 2 that I use. Neither is better suited to...

An important dimension is the amount of bullet engraving when the bolt is closed which is dictated by how deep a rimless reamer cuts the barrel. There are several depths that work well with Eley and several that work well with Lapua but only 2 that work equally well with both. One is not readily...

How about the eyepiece cover? Size in Sensei Brand for SIII 10x50 pwr?

Never mind I found it. 8AM-2PM

Butch, What is the time frame?

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