"Running Deer Doubles" was an Olympic shooting event from 1900 to 1960.
This event is shot on a "running deer" at 100m and the target moves 25yds in 4.7 sec. In "doubles" you then have to fire two shots in 4.7sec. Lead is app 22moa+/- depending on cartridge. X-ring is app 6".
Running Deer was, as an Olympic event, highly contested an there was an ongoing "arms race" in rifles.
Pre ww2 the Norwegian Krag in 6.5x55 was the most winning rifle. After ww2 the arms race took off with highly customized straight pull rifles. The most popular was Ross. Hammer rifles, like pumps, were not competitive due to locktime. The last straight pull rifle designed for this event was a Soviet rifle with a very proprietary low recoil round; the 220 Russian of PPC fame.
The best scores from pre ww2, shot with open sights, are so good that with modern scoped rifles, like a Tikka T3 varmint in 223, a good shooter needs about 10000 rounds dedicated on a moving target range pr year to keep up. Think "Ed McGivern" shooters with straight pull rifles.
Having been competing on an off in this old shooting event the last 40 years I can say that the German Steel Action rifle looks like the best straight pull.