I love them too. No waiting or fooling around. If my factory bolt knobs just screwed off, maybe it would be a different story.
However, even if I could screw off my stock bolt knobs (I can’t, obv) and replace them with bigger steel ones, I was just out in 27F weather and man, it was pleasant to touch rubber vs steel.
I’ve tried the Hornady Bolt Ball, the silicone one on Amazon (
https://www.amazon.com/gp/aw/d/B00NJJQFM6) and the Tourbon small/big double pack (
https://www.amazon.com/gp/aw/d/B011ILQXMS) on Amazon. For all guns, I preferred the bigger balls (jesus) over the small ball.
For my CZ 455, the silicone one was best (although I didn’t try the Hornady one on it) because I could move it around a bit so the bolt fully closed. My CZ 527 and Rem 700s work best with the big Tourbon, as it has the smallest entry hole, making it really seize tight. The little Tourbon wasn’t ideal for any of my guns, and they don’t sell just the big one separately. The small one has a bigger entry hole than the big one!
I’m sure there’s a joke in there somewhere.
The silicone one and the bigger Tourbon are approximately the same size. The Hornady is a wee smaller.
Biggest $ to performance ratio I’ve added to my guns.
All of them make operating the bolt so much smoother, faster, and more satisfying.