Home Forums Hunting & Shooting Winchester Collectors 300 H&H, Gas It Up

Very awesome gift to your father. That is some sorta awesome!!

I've been monkey'ing around with an old rechambered P64 I've had for a long time. Finally decided to shoot it. It was a 300 H&H but seems nicely rechambered to 300 Wby.





Did some speed checks with some 180's and a little accuracy testing but so far it doesn't seem to really like the combos I've put together.



Next time out, I'm going to shim it so the barrel floats and see what happens. Hoping it likes it since I have no problems floating it and making it a good Hunter. I really dig the rifle. Smooth as heck and feels good in my paws.

The .300 Wby Mag is a killer cartridge - perfect for NA big game in open country.

I've owned more than one pre 64 300 H&H which someone had rechambered into the .300 Wby. One of these rechambered rifles was done by Roy Weatherby himself, in the 1950s, I believe. As Roy Weatherby was trying to gain traction with his new cartridges, one of the things he did was offer very low-cost rechambering of non-Weatherby rifles into Weatherby cartridges. At the same time he was equipping big name hungers with these rifles and sending them on heavily publicized dangerous game hunts. A brilliant move, really, as it popularized the cartridges and therefore popularized the Weatherby rifles which had those chamberings from the factory.

Incidentally, those early rechambers done by RW have some nostalgic value to Weatherby fans, as they point back to the very beginnings of Weatherby's success. His barrel stamp was distinctive and a RW rechambered rifle is usually easy to spot - Here's a photo of one:



There is no doubt, the .300 Wby looked on paper to be a significant step up from the 300 H&H. What wasn't immediately obvious to everyone was that Roy's cartridges were a tad overpressured and would reduce barrel life compared to the lower pressure cartridges they were displacing. Regardless, they are terrific, flat trajectory chamberings which can really put some mustard behind a heavy projectile. Yours is a fantastic big game rifle!

Scotty, is that your sons rifle or does he have a different 300WBY? How is the recoil compared to your 338?

Actually, to be honest the 300 Wby with 180's feels a little easier on me than my P64 338 with 225 Partitions at 2900. I am digging the 300 Wby to be honest BSA, if the rifle will shoot decently I may get to hunt it a little this Fall.

I've been cleaning up my "H&H", since Gunner was wanting some pics:

Sweet rifle.

I like it.

Will be using that .375 on rabbits this fall.