n the experience of you folks do Speer bullets like to be seated long or short?
In my experience, the bullet doesn't care. The rifle does. And the rifle can be different with every different bullet. Some are extreme, some not so much, but every one can be.
Since the 70s, I've used a lot of Speer bullets, but not in the two calibers you have. .22, 24 25, 26, 30, 32, 35, 37, and 45 rifle calibers. They've always worked well for me. However you do need to choose the right bullet for the speed you're going to drive it to. Drive a bullet 500fps+ faster than it is designed for, you will change its performance on a game animal. Not a concern with the bullets and calibers you have.
Eventually you'll get your factory rifle shooting like a tack-driver.
Ever wonder, when someone says "tack driver", if they've ever actually shot tacks?? I have. Actually shot tacks with a .30 cal rifle. And not with a "tack driver rifle" just a sporting carbine, with ammo loaded without any idea of how far away from the lands it was, only that it wasn't touching them.
Fun game, use standard thumbtack to tack a playing card to a cardboard box, one tack, middle of the card.
Box at 100yds, no bench, field shooting positions. Game is to hit the tack so the card falls off the bex. Only a perfect center hit on the tack will do it. Hitting the tack off center "crimps" the tackhead around the card and it doesn't fall off.
Of course, I'm a knuckle dragging Neanderthal who doesn't chase the lands in search of the nth degree of accuracy from a sporting rifle, or from my varmint guns, either. If it does what I need it to do, I call it good.
Speer bullets are good bullets. FInd a load your rifle likes, and they will do well.