As has been noted here before - If its American SAAMI standard ammo, and it is NOT marked "low pressure", you can bet your bottom dollar it is not. Fast burning powders require smaller amounts to propel the payload, so American makes almost always use the fastest powders available that allows the load to remain in the SAAMI standard - 11,000 psi for 20g. This is a cost control measue and its not bad, it merely is.
I suspect that Buckmaster reduces recoil by reducing velocity, because in the calculation of recoil, velocity is a squared term and thus has a bigger effect on the Ke of recoil than projectile mass.
That being said, I am sure a 1930's era CIP proofed FN double gun will easily serve with the American loads currently available. The CIP proof and load standards of that era are similar ( but cannot be 1 to 1 compared due to differences in measurement methods) to American usage. American loads may beat the gun up a bit more.
Given that if you hog hunt 15 times a year and shoot the gun 4 times a hunt, I doubt that 60 rounds or so a year will be noticed in the wear/tear department.
I would very much want to make sure that the slugs are a style that will fit through your ( possibly) tight European chokes.
There are three other solutions:
1) Buy and shoot CIP ( European standard) slugs. These are readily available. I have a box of S & B buckshot in my closet as we speak.
2) Load your own to pressure standards of CIP, or you can easily develop slug loads in the 8000-9000 psi range.
3) Go the 870 route ( me, Id rather have an Ithaca Model 37, but you get the drift).
Happy Hunting
Regards
GKT
