Simmons 2.5-10x50

[ogreshooter]

Good day all. Just picked up this scope and having a bit of second thoughts about it. I am putting it on a Savage TR in .22lr. Not shooting much past (if at all past) 100. Did not look real closely, and am not sure if the parallax can be adjusted. It is a used scope, and not out much, but I would prefer to not be out any at all.

Can I adjust the parallax on this scope to around 50 yards ( the likeliest distance for my shooting at this time). I am told that I can rotate the objective lens out and adjust the parallax. True?

Thanks,
Wally