There'a a Big Difference to me anyway. Now there's 2 ACCURA's, the Original V1 and the New V2. The Difference between the V1 and the V2 is the V2 has the Rubber Grip Panels on the Stock and Forearm and the QRBP, Quick Release Breech Plug. Now price wise between the V1 and V2 goes from about $250 for the V1 and $400 for the V2.
I dont really care for the Rubber Grip Panels on the V2 so that only leaves the QRBP's difference between the V1 and V2. I have 3 V1's and Blow Back is Minimal with it's Breech Plug so for me to get a New V2 just for the QRBP I passed as Im Very Happy with the way the V1 Shoots. But if you like the QRBP and Rubber Grip Panels than the V2 is a tad bit better than the V1. The Optima is a Less Expensive version but still comes with the New QRBP and the Bergara Barrel , the Barrel is also 1" shorter than that of the V1 and V2s's it's 26" long vs 27" on the V1 and V2. The feel and look of it is also different than that of the V1 and V2.
If I had to chose between the 3 I'd still opt for the Original V1 as it can be had for a Great Price now if you can find one, it's about the same price as the Optima so for that reason I'd go with the V1 for the money, Then the V2 followed by the Optima.
So the difference between the Accura V2 and the Optima is the V2 has the Rubber Grip Panels and a 1" longer Barrel, a different look and $150 more, the V2 also come with a Quake Sling, the Optima does'nt.
The V1 and V2 have a unique design and some dont like the way they shoulder, the Optima has the standard look and feel of a MLer. So I guess you'd just have to Shoulder both and see what fits you best.
(BP)