The gun tests in Arizona were carried out in part to suggest the burn marks to Nevills back were caused by a rifle without a silencer fitted.
At trial, and maybe to simplify matters, EP declared that only one gun was used by the murderer (with a silencer fitted).
Mike, amongst others, has alluded on some occasions to the possibility that another gun may have been used at whf that fateful night (as all the shots could not be directly connected to the Bamber rifle).
For the sake of debate what if another gun (Pargetters or the unique weapon handed in shortly after the murders) was used as well?
(e.g. 10 shots fired from the Bamber rifle (1 magazine of 10 bullets) and 15 shots from Pargetters (I magazine of 10 bullets and one of 5 bullets) = 25 shots).
We could therefore have one rifle with a silencer fitted (used to kill the twins (5 & 3 shots) and SC (2 shots) = 10 shots).
And one rifle without a silencer fitted (used to Kill Nevill (8 shots) and burn his back, and June (7 shots) = 15 shots?