First, it seems to me that using the smaller amounts of powder in shotshell loads, Small Pistol primers would work fine, rather than the Small Rifle primers recommended for regular 357 Maximum loads. (?)
Next, do 35 caliber gas checks fit well inside the Maximum case, and would a person resize after priming, powdering, and seating the first gas check over the powder? Is a smaller size recommended for ease of loading?
Finally...I read where a 222 Remington sizing die is used to resize the case mouth enough to fit the 357 Magnum cylinder throat. Are there other sizing dies that would also do? It seems sizing will limit the size of gas check.
Thanks!