Late last year I caught the bug for shooting in the CMP Vintage (bolt) matches, and after spending time and money throwing rounds downrange it's become painfully aware that my eyes don't do bullseye shooting with iron sights the way they once did. Years ago I started back into airguns for this exact reason, and I bought an HW77 and put a Williams peep on the receiver. That rifle is long gone, and I know there are plenty of good options for practicing at 10m, but I have two that seem to fit the bill the best; the AV M1A and the Diana K98 springer. The thinking is these would not only allow me to practice getting a good 6 o'clock sight picture, but they should feel much more like what I'll be using in the vintage matches.
I know the K98 is discontinued but they're still around at this point. The M1A is a plus because it already comes with the rear peep, which I'd have to add for the K98, and from what I've read it balances pretty well, where the K98 is very front heavy. However, I'd expect the K98 is going to be better quality in manufacturing, etc., but that may be my own personal bias. The biggest factor here though is the attainable accuracy, as I need to train my eyes again for a bullseye in a peep, and I need to be able to measure my progress.
I've read reviews of both, but I'm still looking for advice. Thanks in advance!