At long last!... my first L1A1..

[enbloc8]

However, if the body is loose on the TMH, that's another story altogether. And before you go listening to a load of old bollo.......... er......... old wives tales about knocking seven bells out of the sides of the TMH and a zillion other hoary old chestnuts, I suggest you read and digest the previous articles written about the trusty old L1A1's on this very forum

For the record, I talked to an Australian who used to do competition shoots with SLRs, and mentioned the fix of silver-soldering shims into the TMH on either side of the body locking lug. He answered that that was forbidden per competition rules, because the rifles were supposed to be "as issued", and somebody who had the $1550 AUD (in the last years anyway) to purchase their own rifle from Lithgow should not have an edge over somebody who just used an issue rifle. Which is probably why the talk of "widen the TMH and tap in the body sides" spread so far....it was seen as "the next best thing".

Now, if you're not bound by such rules and don't have somebody inspecting it, I agree the shim solution makes much more sense.