Unless they are some special product that’s meant to be non-reloadable, they’re either large or small, probably large if they looked like they’d fit. Not uncommon for primers to be a little tight. Chamfer the pocket and/or try another brand if you have any.
You might want to measure the ones you removed and compare to the new ones.
Keep an eye on the Starline site. Sooner or later they’ll have brass available; all SP IIRC.
