I have never kept my magazines loaded but I think that should changeHow many do you think is enough to keep loaded? I have Magpuls and a couple steel ones but for the most part I have C-products and DH aluminum USGI magsNow they will be just sitting in a can for the most part and I know that the spring won't wear out but what about the feed lips? I have heard if you leave USGI mags loaded for too long the feeding lips will swell and cause feeding issuesYet some of my freinds have had them loaded for years with no ill effectsAnything?
I have done this using a divider of thick aluminum foilAfter placing the foil in the pan (crimp the top to the edges) spray it with cooking sprayThen after pouring in both batters, carefully remove the foil just before baking.
Use a sheet cake pan, perhaps a 12 inchTry putting graham crackers or something in between the two battersOr buy a cake pan that has a divider.
I have never had a problem with aluminum AR mags but plastic mags are a different matterI only have one but if kept loaded, the lips definitely swell out and make it a very tight fitAfter removing the rounds and letting the mag sit for a day or so, it went back to it's original shape and no more problemFor just pleasure shooting, the plastic mag works greatBut I don't think I would want to have to carry it around loaded for very longIf you want to keep mags loaded, you can experiment with the plastic but I now stick with metal mags.
The actual way to do it so that it looks like marble cake is to pour the white cake batter in and then pour the chocolate in in a big heavy swirlnot to thin a pour because it will mix more the more is exposed to the white cakeif you want to mix it a bit more, use a knife to run through the two kinds so they swirl together.
You might need a specialized cake pan to get the desired resultHowever, you might want to bake a white layer and a chocolate layer separately and then combine them after they are cooled during the frosting stageYou can try splitting your cake pan into sections using tight fitting inserts, such as metal dividers, etcGood luck!
