Officers recovered the weapons after a police helicopter spotted them being dumped in a bin.
Hogmanay events cancelled and pubs empty as most of Scotland is put into level four lockdown restrictions.
Melrose residents have called for a 'heavy-handed' approach to the drunken youths.
Anthony Rodgers was reported missing on Tuesday after last being spotted cycling on the B9011.
The 33-year-old was seriously injured in the 'unprovoked attack' in Glasgow city centre.
Antony Rodgers, 57, has been missing from his home in Elgin since Tuesday night.
The DJ spoke to STV News ahead of his set at the Princes Street Gardens party, where he has top billing.
The annual Hogmanay tradition saw thousands of torchbearers take to the streets.