Since there is and XCR-"Light" and XCR-"Medium" varieties, it stands to reason that there will be an XCR-H for "Heavy". Robinson seems to have their hands full at the moment, but I feel from the winds I'm reading from them that going to a Heavy caliber rifle is an aspiration of theirs. With no news on anything like it, I wanted to hear some speculation from the most diehard XCR fans/gun designers what a Robinson-branded heavy rifle would likely be.
The main competition/comparison for this kind of gun would be Barrett's M107A1, a giant of a rifle that I'm kinda surprised is legal to own for $12 grand. Aside from recreation shooting, I think the market for this kind of gun would be for hunting big game with less need for follow-up shots, as well as military and LE.
The Barrett M107A1
What I want to know is what kind of calibers an "eXchangeable Caliber Rifle" would support in one receiver? There is the .50 cal BMG, and there's the .416 barret, .338 Lapua Magnum, and the .338 Norma Magnum. The problem is, the .50 BMG is longer than any of the other rounds, and I don't know how anyone can design a multi-cal rifle that supports all of these bullets.
I also want to know what kind of market there is for this kind or rifle, especially with Barret having cornered the market over a decade ago. I suppose Robinson arms can compete in ergonomics, changable calibers, and price (think it would be possible to sell something like this for $8,000?)
The main competition/comparison for this kind of gun would be Barrett's M107A1, a giant of a rifle that I'm kinda surprised is legal to own for $12 grand. Aside from recreation shooting, I think the market for this kind of gun would be for hunting big game with less need for follow-up shots, as well as military and LE.

The Barrett M107A1
What I want to know is what kind of calibers an "eXchangeable Caliber Rifle" would support in one receiver? There is the .50 cal BMG, and there's the .416 barret, .338 Lapua Magnum, and the .338 Norma Magnum. The problem is, the .50 BMG is longer than any of the other rounds, and I don't know how anyone can design a multi-cal rifle that supports all of these bullets.
I also want to know what kind of market there is for this kind or rifle, especially with Barret having cornered the market over a decade ago. I suppose Robinson arms can compete in ergonomics, changable calibers, and price (think it would be possible to sell something like this for $8,000?)