I bought a CVA Optima on closeout and I'm going to try some new loads. I usually hunt CO so I'm limited to full diameter projectiles and no pelleted powder. Normal load in my Remington 700 MLS is 100g of 777 with a 385g Hornady Great Plains conical. Since I'll be using this for moose in NH the rules are different. I bought some White Hot Pellets and some Buckhorn 209 loose powder. The Buckhorn 209 says to use regular shotgun 209 primers with it. I have some Remington MZ 209 primers but they're "made" for muzzleloaders. What's the difference between these and "regular" shotgun 209 primers? I also bought some Barnes 290g Spit-fire TMZ sabotted bullets and the special loading tip for the ramrod. Any suggestions on loads for this rifle? I know to work it up and not load to the max right out of the blocks.