Hello,I have an older HS model 21s,on the barrel it says cal .22 lr,but the cylinder says .22 magnum.Can the .22 magnum bullets be used with the.22 lr barrel?I know that this is probably a dumb question,but I am not that familiar with the .22 magnum bullets,and I would rather be safe than sorry.Thanks for any info.....The gun is older but in good condition.Paid 50 bucks for it.just to do a little plinking around with.