I prefer a shooting glove with ultrasuede or imitation suede palm and trigger finger. If your leather glove is worn or hardened from sweat, then it needs to be treated or replaced - but supple leather should readily grip a clean butt stock...
Bowling lanes sell a product called "Pro-Grip". It's a thermoplastic powder that you sprinkle on the the gloves and then rub them together to heat the plastic and make it tacky. You can reactivate it several times by just rubbing. Also works real well on skin. Doesn't build up on gloves. Kay Ohye sells it be he wants a fortune for what you can buy at a lane for 1/4 the price.
If you can't find it just dampen the leather with water before you shoot.
Wore out two pairs of 'Gun Gloves' very quickly. Now using wet weather golf gloves. I think they are by Foot Joy, bought at Dick's. The golf gloves have held up much better than "Gun Glove' and are cheaper too.
Had 3 pair of Gun Gloves and they were great feeling but at the price didn't last long. Went to the Browning glove and they were great at the price but now the sizing has changed. On the hunt again for a good glove. Going to try some golf gloves next.
Why wear gloves, because in the heat the guns get hot and also great for a nice solid grip.
another vote for the GUN GLOVE, note however that the sizing chart on the website might not print to scale....they include a ruler on the page, and it does not (at least on my computer ) print properly, I had to play around with the print size a bit to get it right.
Try a pair of Zildjian drummer's gloves. They have a good grip and the thumb and palms are reinforced. The leather is soft and thin and the length just covers to the base of your thumb so the do not impair movement. Available at any good musical instrument store.
I have been using "cheapo" golf gloves for quite a while and they beat everything else I tried. Only time I dislike them is if it rains heavy. Then they go from tacky to slick. The ones I am currently using are the Etonic GSok All Weather gloves. I found them online in sets of three in both right and left hand. They normally hold up for about six months. Bought enough to last me for the next couple of years.