#11
|
|||
|
|||
Back in the day........
I seem to recall that, with the 11 degree crown, the angle of escaping gases was "optimized" when using boat-tail BR bullets.....of the day.
Remember......I said I "seem" to recall. Kevin |
#12
|
|||
|
|||
Correct. -Al
|
#13
|
|||
|
|||
Quote:
As Ray stated, it was what BR shooters thought at the time gave them an edge based on some very limited studies, both "scientific" and some not so scientific. Like Kevin said, most of the "more scientific" information was based on BT bullets used at the time. It worked so the BR crowd jumped on it and it became a legendary fact that others have followed. Some even believe that the 11 degree target crown is less susceptible to damage than most other crowns because it shields the sensitive area near the bore and that other crowns are more easily damaged. ?? Again, in some people's minds. In fact, you will be hard pressed to find one crown that will noticeably outperform another - if it is square to the rifle bore, and properly machined. The bottom line is that actual crown angle has very little to nothing to do with accuracy. The crown itself at whatever the depth that it is cut does. A good crown is good at whatever angle it is, same same with a bad crown job. Shooters are a group as a whole that follows what someone else thinks is a winner. This is just one example of that. If a certain new cartridge starts winning BR matches, very soon everyone else who is competitive and wants to win badly has a rifle chambered for the same new and perfectly designed (inherently accurate ) cartridge. And "the beat goes on" like the old song said........ In fact, the machinist doing the work determines whether a feature is accurate or not, whether its the barrel crown or the rifle chamber itself. JMO (note the qualifier) - BCB
__________________
I miss mean Tweets, competence, and $1.79 per gallon gasoline. Yo no creo en santos que orinan. Women and cats will do as they please. Men and dogs should relax and just get used to the idea. Going keyboard postal over something that you read on the internet is like seeing a pile of dog crap on the sidewalk and choosing to step in it rather than stepping around it. If You're Afraid To Offend, You Can't Be Honest - Thomas Paine |
Thread Tools | |
Display Modes | |
|
|