On my 1886 the right locking bolt is a little loose compared to the left side. I can only find 1 reference to this searching the internet. Is this normal? Just curious as it feeds and shoots fine. Any info and insight appreciated.

Loose when? When the rifle is empty or there is a cartridge chambered?

Empty.

Don't worry about it. Even if a cartridge were chambered, it would not put pressure on the lugs. You could put some tape on a case and force the bolt closed and then see if the bolt was pressed against the locking lugs equally.
In any case, not to worry; the 45-70 pressure is so low you don't even need locking lugs.
Don't try that though, although PO Ackley did fire a 94 Win in 30-30 Improved with no locking bolt. Nothing to report. Fired normally.

That will work as I do just shoot it. Just wondering if this is normal across the range of these fine rifles.