This is such a fascinating subject
This is such a fascinating subject
CYA friends:
What would the world of rimfire accuracy look like today, if there had never been the MD-PAS Turbo RFBR action?
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I was laying in bed last night pondering this.
As a RFBR schmidt, who went through the development of the Turbo action back in the late 90's, I fully understand how it changed the world of rimfire accuracy.
The Turbo action is what stopped the first pistol revolution.
After I finally agreed to build a RFBR rifle on this new Turbo action, and tested it, I knew immediately that the world of rimfire accuracy was about to be elevated.
And there was "absolutely" no doubt after I built and tested my second Turbo rifle build......
Something was different about this new Turbo action.
It produced accuracy like I had never experienced before.
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At first I did not consider, or I should say understand, the role that ignition was playing with this new Turbo action.
The first time I tore one apart, it was obvious Flash Ebert had based his Turbo on the 52 Winchester.
And I had had great success with the 52 Winchester.......Selby Wright half tracking the field at the 1992 BR-50 Nationals is just one example.
But the role ignition played didn't jump out at me.....until later.
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The first of two things I figured were causing the remarkable accuracy I was getting with my Turbo builds were the .750" barrel thread diameter, which allowed me to use straight profiled barrels...
And the second thing was the rear, horizontal lug lock-up, which eliminated some of the issues with the Remington pattern trigger, although not all.
But something happened about the same time as the new Turbo came out:
There was another RFBR action starting to be produced, at the same time, that used rear, horizontal lug lock-up and a .750" diameter barrel thread.
But I could not produce the accuracy with this other custom RFBR action that I could with the Turbo.
So the 750" barrel thread and the rear, horizontal lug lock-up were not the total cause of the Turbo producing such amazing accuracy.
So what was different about these new Turbo actions that caused them to produce such amazing accuracy?
More later....
Your friend, Bill Calfee