Finalizing my double rifle purchase and now caliber selection is the issue. ammunition availability is my primary concern. I gave up reloading a while ago but that doesn’t mean I won’t start up again when I have more time.

1. I am a dealer with FFL so purchasing isn’t an issue.
2. I am looking for sources of either 7x57R or 8x57JRS by Norma.
3. availability may determine cal. of rifle I am ordering.
for whatever reason, there doesn’t seem to be any of either for sale anywhere.

I am going to purchase a Chapuis Series 3 and the 30-30 looks very inviting but the 7x57R and 8x57 JRS just have more performance. The rifle will be used primarily for whitetails.

I want off the shelf performance. From what I am gathering form reading posts and reviews, the S&B ammo is okay for practice but the bullets aren’t constructed that well and tend to blow apart.
Thoughts on any of this are appreciated.