Weatherby has a reputation of excessive FREE BORE designed into their chambering. Is this a issue in the 375 Weatherby Magnum vs. 375 H&H Ackley Improved? Your thoughts.

quote:

Originally posted by Ackley Improved User:
Weatherby has a reputation of excessive FREE BORE designed into their chambering. Is this a issue in the 375 Weatherby Magnum vs. 375 H&H Ackley Improved? Your thoughts.

No. Go with the .375 H&HAI and be done with it

Ii have a 375 Weatherby and have no problems withit. Before I had the chamber cut I looked into the reamer specs and the free bore is parallel and not cone shaped. This doesn't really create any problems for accuracy and does help to reduce initial pressures. It give the bullet some momentum before it starts to engrave. My rifle shoots .75 groups at 100 yards fairly consistently and shoots the 270 grain TSX at 2900 fps with no pressure signs. What more can one ask for in a hunting rifle? It's built on a Winchester model 70, has a Pac Nor barrel along with an HS Precision stock,weighing in at 9 lbs. No Problems.
Take good care,
Dave

AIU,

If you do a search you will find plenty of info on this topic.

I can't answer your question from personal experience but I did research these calibers. I read that the original .375 WBY had more freebore than the re-introduced version. Something like 3/4" v/s 3/8".

Many of the H&H chambers are built with a very long throat anyways. The freebore is a non-issue , and these are not the sort of calibers you use to shoot gophers , any theoritical loss of accuracy is also a non-issue .


I re-chambered a M-70 and the Weatherby reamer never touched the original throating.