Not to overly complicate things if you're new to reloading but there's a number of things that can cause your ES/SD numbers to be higher than you'd like and for the record your numbers aren't horrible.
If this is brand new unfired brass did you FL size it first or just start loading it straight out of the bag? Do you have a comparator and are you measuring your loaded rounds base to ogive after you seat the bullets?
A lot of people don't FL size new brass but I generally run new brass through a caliber specific mandrel to make the necks round then I chamfer the inside/outside followed by a neck bushing only die to set neck tension, generally, around 2 thou. I don't usually FL size until I start getting fired cases that have a bit of resistance closing the bolt. This can take a couple or even more firings depending on how hard I'm running things before I need to push the shoulder back. I'm not a fan of arbitrarily FL sizing brass just because so I wait till the brass tells me it needs to be FL sized before I do it that way I always headspaces off of the shoulder. From the factory new brass from base to shoulder datum generally has a few thou variance from piece to piece and that variance can cause your ES/SD numbers to be higher then you'd like. Brass is essentially a pressure chamber and variance/s in the volume size, different length base to shoulder lengths, will affect pressure which affects velocity. Unless it's way out of line I wouldn't get to twisted up about ES/SD until you've cycled through new brass with at least one firing on it.
If you've done all the above then start paying closer attention to how consistent you're bullets are being seated. If you don't already have a comparator and a decent caliper get them. Consistent seating depth can do as much for ES/SD numbers as about anything I know of.
FWIW, you don't necessarily have to have single digit ES/SD's for your rifle to still group really well out to a few hundred yards. It's when you really start stretching things out there that those big double digit numbers start kicking your ass.
Also, that's a really good looking rifle you have yourself. It appears to be a Remington "Varmint Special" and I've always been a big fan of that particular model Rem 700.
