I have had many discussions about it already... But the responses I received where only based on traditions... Not facts and/or knowledge.
("you must not do this or you will break your gun...your hand...yourself...your neighbours..etc.").
Well... I like the people giving warnings... They care about others, and I respect it. But I know that earth is not flat, because it has been demonstrated... Not because I have been told it is. (If every Muslim Christian etc. Would be kind enough to follow the same kind of path before killing other humans for some stupid "beliefs"... The world would be a lot safer...).
Then.. Is it still safe to reach 443ft-lbs (600 joules) in the rem58? (or 880 joules in a walker, or 954 joules in a 18" rem 58)). Let's gather what we know:
-proofhouses in Europe are using 1400bars to proof black powder guns (1200 bars when below .44)
-common standard use is considered "safe" when having 30 to 50% margin below proofing load. For instance when scuba diving, the air bottles have been proofed to 300bars, and are being used at 200bars on a daily basis.
-In Lyman books you will find test reports giving actual measures of pressures vs speed for rem58 8": 284m/s 470 bars (371 joules), 298m/s 506 bars (408joules).
Well.. we can now calculate a relationship between joules and pressure within a rem58: .8 (thank you Lyman). Which gives 750bars for the load that gave 600 joules in my own rem58. Which gives a 46% of margin... Good enough for recurring use.
Now it is true that brass/steel/whatever will wear faster with higher pressures... And accuracy will be lower... But If you keep in mind that we are speaking about weapons (not only plinking toys)... 46% margin is much better than what we have in most missiles...
("you must not do this or you will break your gun...your hand...yourself...your neighbours..etc.").
Well... I like the people giving warnings... They care about others, and I respect it. But I know that earth is not flat, because it has been demonstrated... Not because I have been told it is. (If every Muslim Christian etc. Would be kind enough to follow the same kind of path before killing other humans for some stupid "beliefs"... The world would be a lot safer...).
Then.. Is it still safe to reach 443ft-lbs (600 joules) in the rem58? (or 880 joules in a walker, or 954 joules in a 18" rem 58)). Let's gather what we know:
-proofhouses in Europe are using 1400bars to proof black powder guns (1200 bars when below .44)
-common standard use is considered "safe" when having 30 to 50% margin below proofing load. For instance when scuba diving, the air bottles have been proofed to 300bars, and are being used at 200bars on a daily basis.
-In Lyman books you will find test reports giving actual measures of pressures vs speed for rem58 8": 284m/s 470 bars (371 joules), 298m/s 506 bars (408joules).
Well.. we can now calculate a relationship between joules and pressure within a rem58: .8 (thank you Lyman). Which gives 750bars for the load that gave 600 joules in my own rem58. Which gives a 46% of margin... Good enough for recurring use.
Now it is true that brass/steel/whatever will wear faster with higher pressures... And accuracy will be lower... But If you keep in mind that we are speaking about weapons (not only plinking toys)... 46% margin is much better than what we have in most missiles...