I have no personal experience of DG hunting (Not yet
)
JJ said it. Here's an extract from my motivation for my licence application for a .375 H&H Winchester Model 70 Classic Stainless Synthetic that I managed to find 2nd hand.
It's a rehash of what JJ said, but states it quite clearly (this was from several books, internet authorities etc.)
A controlled-round feed type action will feed correctly with the rifle held at any angle and even upside down. Controlled-round feed designs also prevent double feeds. This is because when the extractor has captured one cartridge, a second cannot leave the magazine without the first being ejected. Either way, only one cartridge makes it into the chamber. With a push-feed action design, incorrect operation (particularly “double stroking” the bolt) can result in two cartridges trying to enter the chamber at once, jamming the rifle with potentially catastrophic results for the hunter.
Full length, Mauser type extractors not only increase feeding reliability, but they take a bigger bite on the rim of the fired case, making the extraction of dirty or oversize cases, or those affected by pressure due to high ambient temperatures, more certain. Most other designs do not take as positive a grip on the case rim as a Mauser claw extractor, making failures to extract more likely.
I'm also interested to hear about the Sako CRF.
I suppose there is an argument to be made that the sport hunter is guided by a professional (hopefully with a double or CRF
), so he can get by with whatever, but lets face it it's always better when you have equipment that will work without question.
I've seen short stroking even in shoots of the Big Bore Association where members shot against a timer - just that added stress at a paper buffalo was enough!
Imagine the real thing!