I currently own four German doubles to include:
- Heym 88 in 458 Win
- Kreighoff Classic in 500/416
- Merkel 140AE in 375 H&H
- Blaser S2 in 375 H&H
Please don't ask why, these things just follow me home.
Of these rifles, the Heym handles the best. Movement of Inertia is easiest with the Heym.
The K-gun is built like a brick shxthouse.
Of the three cartridges, my opinion is the 500/416 launching a 400 grain bullet at 2400 fps is the most useful. I will have to send the K-gun to JJ to have it regulated to my loads but that's a cost of doing business. If I don't like paying a few dollars to fine tune a fine rifle, then I should stick to a scoped bolt action rifle. I have three of those in 416 cartridges...
My two 375 doubles are scoped, which make them very useful. The Merkel has the EAW side swing quick release scope. I wish all my double had that so I could attach a scope for those extra long shots at plains game and vermin.