500 Grains

The Ritterbusch is the one that Griffin and Howe had for sale..It's .458 Win. with 25" tubes,Fleurs De Lys chequering, front ramp 1 standing w/2 leaves.. It's proofed with 510 grain bullets.. Ejectors.. The target which came with it has both tubes firing 1 1/2 inch group in the 10 ring with Federal Pemium 500gr ammo..
The leaves say 100 and 150 not sure if thats meters or yards..
Great wood, Good balance.. Like Merkel..
It's not a Nitro chambering but I felt for my first Double it's a good pick.. It's Sound and won't need to go to JJ for opinion.. Maybe as Mic has said 450 3 1/4 one day..
AK