I use a multi post North Mountain and have a single post that I put behind my holster for the initial load on a stage. I would recommend the multi post unit vs the single post units.
I have used Wilson 47D magazines since they came out. I have never had a magazine related problem with any of my 1911s. I also use Wilson mags for my 38 super and 9 mm single stacks.
Though it is not really necessary I have 4 of my rifles with Miculek comps and they have been timed.. I prefer the Miculek comp to the majority of the comps on the market..I currently have 5 other ARs with assorted comps and none of them work as well as the Miculek
I use Kroil and a bore snake on all of my .22 and .17 rimfire guns. I put the Kroil down the barrel from the muzzle end and let it sit for a couple of hours..then run the bore snake down it 5 or 6 times. Seems to maintain bores in excellent condition. Never have a functioning problem or loss in accuracy. My AR .22 upper is also a Nordic NC-22.
Been using colanders for years. I have two and pour the brass and media back and forth between them 4 or 5 times and it is done. I use a bucket about the size of a Home Depot bucket.
Sounds like the bullet is seated off center. I have seen this problem where the bullet was leaning to one side of the case mouth when seated. Pretty easy to tell if you roll the round across a flat surface and look at the bullet. If not centered the bullet will look like it is wobbling as it rolls.