I started stocking up on 12 gauge rounds when I bought my 590A1 in 2015. Haven't bought any since November of 2019 and have only put 170 rounds through the shotgun. So now I have over 1100 rounds of buckshot and 270 rounds of bird shot. Glad I did what I did when I did. Didn't see this...
What model shotgun do you have? It sounds to me like the bolt is not fully going in to battery. The snap caps may be a bit over size or something. I have used several different brands in my 590 with no problems, but I have not tried the Tipton snap caps.
Mine is neither difficult to install nor difficult to remove, but it does fit pretty snugly. I have no worries about it falling out or becoming dislodged.