I used to use my 65 blocked and also on 1380 gms as c/f practice back in the good old days when we shot centre fire. I then bought a Walther LP53 specificaly for centre fire practice.
I did also try it recently and the scores were fairly similar as long as the concentration was on technique, I don't think the recoil was as fierce as the LP53.
All good fun.
Robin
Walther KK500 Alutec expert special - Barnard .223 "wilde" in a Walther KK500 Alutec stock, mmm...tasty!! - Keppeler 6 mmBR with Walther grip and wood! I may be a Walther-phile?