The primer pocket on the ML 10II is in the bolt receiver. The breech is removable.

Don't own one but have 2 friends who do and haven't seen any POI effects in a normal range session when not swabbing when using smokeless powder/sabots.

It is a very solid design and versatile if you can use smokeless powder during your ML season (here we can and as such it would be a top contender if I were looking for a new ML).