450,

I think you know that I have a 450No.2 Jeffery with two barrels. The original which are nearly mint and a modern set. I never have though about scooping a 1906 British Double, but on the new barrels it would not detract the value, perhaps increase it because one could reasonably shoot out to 200 yards with 350 grain projectiles greatly expanding the utility of the gun.

BTW, I shoot the NF 350 grain flat points in both of my .458 doubles with great results. I've recovered some and the riflings only have engraved the grooves (bands). The ogive remains untouched. I'm going to try his 450 solid, as he has said they are are safe in a DR also.