I purchased a commercial BSA sporter at a local gunshop a while back. I wasn't even sure it was a sporter 'til I got it home and did some extensive research on it. It's the most basic model BSA made. The give-aways were the 24 inch barrel with the folding hood, the bolt mounted safety, and what looked like a carbine type sight, otherwise it looked a lot like any old chopped SMLE. Even had a magazine cut-off and ten shot magazine. I fell in love with it. It points well and cycles easily from the shoulder. Took it out to shoot it and it key-holed every time. Perfectly sideways. I can drop a .314 right through the barrel. I can shoot .318s in it, but the accuracy was lousy. A .323 bullet is too tight to push through with a ramrod. I'm new to your forums and wondered if anyone has had any experience with reboring and or rechambering and, if so, some reliable smiths who might do the work here in the US. Thanks for your time. Norman4