I'm not saying that they would be used to replace BER rifles but it would be an ideal opportunity to get rid of over production bodies to feed them into the Ordnance system as we've seen with the 1957 FTR rifles that are nothing of the sort, but are in fact new build(?). Don't forget, the body was the highly accountable item that was subject to audit and accounting. And by 1957, who wanted obsolete but accountable stocks. Those are just my thoughts. Those accountable bodies that did remain ended up in MoS stores at somewhere and were used for the L39 programme
It's a bit like when the MG factory closed................. Who wanted a factory full of valuable stock, spare parts and unsold cars? So they just sent the finished and accountable cars to the dealers who couldn't even sell the cars they already had. And packed up all the spares and sent them back to UNIPART to slip back into the spare/replacement parts system................... Only they didn't. They just sent the whole lot to the local tip at Drayton and buried the lot