Finding Resonant Frequency in LC circuit using oscilloscope data
There are many way to confirm with a scope

1) For frequency domain, Use FM sweep gen  in X-Y mode. This is for visual confirmation using envelope centered at bottom of screen.using Scope X axis sweep to CH1 and Ch1 out to FM in and CH1 as X axis on scope CH2 as Signal current over R then scope shows frequency response. You can shift X axis with CH1 level and scale FM accordingly.

2)For time domain, pulse the circuit with narrow pulse at low rate eg 100 Hz and measure the ringing resonant frequency. 

The gain of the filter or Q factor is ratio of reactive to real impedance, in this case 1257ohm /100 =12.6=Q so there should be a few cycles decaying to confirm resonant values.