my experience with bsa - had bought 3 of them, had to replace 3 of them. have one on a .22lr, had to replace it.
it appears they are really nice for the $ for 2-3 years and then crap out on you when you've finally gotten your rig tweaked out.
it's not a matter of if, but when. they replaced them no questions asked, however the amount of time screwing around, ammo, gas money to the range, shipping costs, yadda yadda, isn't worth it in my opinion. i'm a cheap bastard, but i'd pay 200.00 more for a nikon, bushnell elite, etc., to have a better piece of mind that it'll work when i need it. (i only takes me 3 times getting hit in the head before it sinks in)
if you still want a bsa, i just received back my last replacement last week. 8-32 platinum target dot, new in box, $60.00, you pay shipping.
the problem i have with these sweet scopes ( and all these holdover scopes on the market) is that if you handload, or use different factory ammo or your rifle has different barrel length than what the scope is calibrated for, the point of impact will be different than what the scope reads. may be give you center mass up to 300 yards, but certainly not precision as advertised. better off with a good data book, trigger time, and turrets.