We have a rimfire rack that is just a scaled down MGM rack. I believe the player are welded to pivot sleeves. Adjust set weight (lean) with a bolt. Works great.
I use Titegroup for 9, 38 spl, 40, 44 mag/spl, & 45. I switched to Bullseye last time there was a shortage because that's all I could get and usage was almost identical to TG (within .1gr).
There was an article floating around, that I can't find now, where a guy took various bullet types and loaded all of them over an identical powder charge to see the bullet types effect on velocity. Short answer was lubed lead produced the fastest fps followed by coated and then plated/jacketed.
I shoot coated where I can for the projectile and powder savings (and not having to deal with lead lube smoke) and jacketed where needed (e.g. high velocity or hunting applications).
Bullets go in the magazine(s) which go in the gun which goes in the holster (which is attached to the belt). Load the range bag in that order. Most of whatever else I need stays in the range bag.
I forgot my belt/rig once going to a sectional match that was four hours away. Lucked out and was able to borrow gear.
Whatever the local skate shop sold me. They only sold chunks for board decks so I have enough to last me forever. Was like $5 or something. Doesn't fall off and takes a while for the grit to wear off.
Leupold put together a pretty good article on common scope design misunderstandings.
https://www.leupold.com/leupold-core/core-knowledge/articles/top-5-optics-myths-explained