the ring of a genuine maple leaf?

[genesayssitdown]

hi there, i've recently started to collect (hoarde?) silver bullion, and have done the ring test on each coin as i've received them. all the coins have a resounding second or two ring, where as a maple leaf i just bought doesn't seem to ring as well (though it does ring). is this common with silver maple leaves (which i've read on some other forums), or is this cause for concern?

thanks!

[offgrid]

It is 0.9999 silver as opposed to 0.999, which means it is the softest bullion and should be a little less ringy dingy.