I realize that there are some differences between a Remington Model 721 and a Model 700 but I found the following articles to be very interesting. However, and I have never hunted any dangerous game, I will state that a Remington Model 700 would not be my first choice for a dedicated dangerous game rifle. For hunting plains game, I don't see much of a issue with using a Model 700.
I used my Remington Model 700 Classic in 8x57JS for two Impalas and two Warthogs way back in 2005 in South Africa. (The Rem 700 was my backup rfile on that trip. I primarily used my CZ 550 American in 9.3x62.) BTW, my gunsmith replaced the infamous Remington J-lock with a Gre-Tan firing pin assembly.
Cheers! Bob F.
No Ordinary Rifle
by
Harry Selby
posted on January 31, 2012
This is a story about a particular rifle that has truly stood the test of time over a period of half a century, accounting for many excellent trophies on numerous safaris in several different countries over that period of time. No, it’s not a custom masterpiece costing many thousands of dollars; it is an “off-the-shelf” Remington Model 721 in .30-’06 Sprg.
I will endeavor to relate here some of the highlights of the performance of this very ordinary, but, in my mind, unique rifle that was used on safari for a period of more than 50 years. To tell the entire story of all its successes would fill a book.
...<snip>...
I was intrigued, as I had seen one of these Remington “economy” rifles in .30-’06 on a previous safari with Robert Ruark. Bob brought one on his first
Horn of the Hunter safari, and in spite of my initial reservations, it had surprised me by performing very well. In fact Bob collected most of his plains game and a leopard with it. He continued to use it on all his subsequent safaris, and I have to say it was the one rifle with which he could shoot really well. It was very accurate with no feeding problems (I even tried chambering a cartridge with the rifle upside down with success) and a trigger pull that a very expensive custom rifle would be proud of. The only possible criticism I could make would be that it might be a little slower clearing a jam due to the fixed magazine cover plate.
full article here: https://www.americanrifleman.org/content/no-ordinary-rifle/
Harry Selby and Robert Ruark
Remington 721
A Rifle Ahead Of Its Time
by Dave Anderson | 2023
"The Remington 721 bolt featured a recessed bolt face in which the
cartridge case head was fully surrounded by steel. The extractor was
a spring clip recessed in the bolt face, the ejector a spring-loaded plunger."
full article here: https://gunsmagazine.com/discover/remington-721/