Malxwal

FFS, I just sold a brand new unused M595/695 genuine assembly for half price two days ago, as it had been lying about in my cupboard for a year. I have a Tikka set trigger unit (Stecher) for these too, could be persuaded....

4 hours ago, Akeld said:

I think I have a factory unit from a 595 (aluminium block) somewhere, pretty sure the T3 unit is interchangeable as well

T3 unit is not interchangeable, from experience.

Looking at this change to burn rate, has piqued my interest, mainly in understanding more. I tried changing the burn rate for my own load using Nosler 125gr bullets, and see that only a change up to 0.5100 is required to match my chrono'd velocities of 3010. Looking at it, the given value of 0.5045 gives a velocity of 20fps lower for my load.

So, modifying burn rate only applies to a given load, , in this case the 150gr and up bullets; if using 0.55 in my other loads/rounds, they subsequently appear to be over pressure.

What other factor should be changed as a constant so that RS52 QL data can be more accurate across the board ?

Interesting Edi, as I have often read WD40 to be bad for blueing ? Certainly leaving your rifle wet overnight really not clever, but the degree to which this particular brand new T3x marked was quite amazing.

My mates T3x rusted badly after being put away damp. Overnight in a warm dry gunsafe, the barrel was badly marked. Truly way beyond what you would expect. No defending the fact it was not properly attended to after a wet outing, but the speed with which it reacted would suggest there is something lacking in their blueing.

You could just sell me the 200 123 Scenars.....