Thought I would seek out some advice. I have a Win M70 Super Express barrel with barrel band and iron sights in 375 H&H. Looking to have it bored out for a big bore/Africa barrel to be installed on one of my extra M70 actions.

I have a 375 already. I'm on the fence as to which way to go. I currently have some 458 brass so I thought Taylor or Win Mag, but was wondering what the experienced ones thought as I look into this project...

Unless you're going to hunt thick-skinned dangerous game on a regular basis, you don't need a .458.

A .416 will be more practical for hunting.

George

Since you have a factory barrel with the chamber cut I recommend you consider the .375 Weatherby, .416 Remington, .458 Lott, or the .470 Capstick. Ther .375 Weatherby is the most partical and a dandy cartridge to boot. No loss of barrel weight due to thinner wall thickness.

Just sell the bras.

With the mag box already long enough for the 375, I would go with the 416 Rem or 458 Lott. Your 458 Win brass is too short/wasting box length.

Keith

quote:

With the mag box already long enough for the 375, I would go with the 416 Rem or 458 Lott. Your 458 Win brass is too short/wasting box length.

+1

Agree with Ramrod. Have both. Unless your a dyed in the wool buffalo and elephant hunter, I'd go with the .416 Rem. It's a great all around cartridge, especially if you work up a solid and a soft load that shoots same point of impact. The .416 is a legit 200+ rifle for anything. I've shot everything from impala to buff over there, to whitetails and turkeys over here with mine.

got al 3 ... 416 taylor is on an enfield.... the 416 rem mag is a cf m70... the .458 is a push feed m70.... the 416 rem mag would be my choice for a DG hunt... something about the 4oo gr barnes solids.....

having killed my Buff with my CZ 450 Dakota, I will confess to being a bit prejudiced in favor of that round. You can use 350gr jacketed or cast bullets for practice; and I shoot 500gr jacketed bullets at a low-pressure 2370fps. You can get past 2500fps if you wish. My second choice would be a 416 Rigby.
Oh, yeah, sell the winchester for a mildly exorbitant price and get the CZ in either caliber.

Rich
Buff Killer

Idaho SS,

I would love to sell the M70, except it's left handed. Aside from custom, the most I've seen so far is a 375 bore.

I appreciate all of the input. Keep it coming!

.458Lott... 400gnCoppers kill surprizingly well,[ no more coil than .416rem]...with option of much heavier weights.
at the other end of the spectrum It be interesting to see 'ow elk & bullmoose would react to a "low"coil highspeed 315hv...

re;416 cal...I could suffer a .416ruger with 245hv&330hv & 380hvFN monmetals and need nothing else between it and a 280rem.

... All very good answers ...... It would be hard to go wrong with all the choices listed ..... If you already have the long action and really want a big bore , The 416 Rem is possibly impossible to beat ..... The full length 458s are a close 2nd , but with the monometal bullets in the lighter weights they don,t drop alot more than the 416 ....The biggest plus for the 458 is affordable practice bullets ........

It is/should be simply a matter of a new barrel if you go 416 Rem.

I would skip re-boring the barrel and simply have a good smith re-cut the chamber to 375/404. It is everything good about the other 375's with the added benefits of better case design. Having said that, if you're dead set on the 416 or the 458 I have to recommend the 458. It is a fine cartridge with a myriad of bullets available and the brass lasts forever.

My answer is always the same on this gaggle of questions.
GET A CZ IN 458 LOTT

In this case, sell the winnie, and come out cash ahead, have it bedded and bolted, and shoot!

Don't want a CZ? rebarrel to 458 lott, and load down to whatever you want. 400 gr barnes tsx at 2400 is pretty plesant to shoot!

Danny Pederson w/Classic barrel and gunworks can take your M70 and rebore/rechamber to 416 Rem and it's done for less than 250.00 no brainer. I have had M70's rebored to 416Rem mag and one was rebored to 458 Lott. The M70 is just barely able to accommodate the 458 Lott with 500 grain solids and we had to do some ramp work and get an older model follower for it to feed well. What George said are sound words also, the 416 Rem is much more versatile. The CZ 550 is a better platform to build the Lott on plus you get 5+1 or a Jeff said buy a CZ in 458 Lott.

I have the 416 in Remington, 375 H&H by Sako, and a CZ 458 Lott. I say buy or build what ever you want.

I would just sell it and buy a 416 Ruger Model 77 and be done.I have 6 416 rem mags I really like .The 416 is the best all around gun for Africa if your after Dangerous game.The recoil is not that bad and its accurate and can be used longer range than the 458s.I have shot my 416s out to 400 yards with the old barnes 325 gr it was supper accurate.I am not sure which long range bullet is best in the 416s these days.I like the 350 gr speer and swift also at 2400 fps way less recoil .I like the 400 and 410 gr woodleigh for things that bite and stomp .The swift and Nosler are good too.

Don't rule out the 458 WM... It shoots a lot flatter and farther than many are giving credit for! It'll easily shoot the 350TSX at 2600+fps! Mine (a CZ 550)will shoot that fine bullet at 2700+fps. If one is so inclined, the 300TSX will make over 2800 fps! And an easy 2200 fps from 500's, and over 2400 from 400's.

More bullets available and more versatile in the long run than 416's. And comfortable to shoot.

Bob

www.bigbores.ca

I don´t like 458 Winchester Magnum, perhaps because things I have read. I think that 416 Remington Magnum is a good caliber but 416 Rigby is better. I don´t know nothing about 416 Taylor.

Oscar.