Remington 700 mag action to start.

[micky_blue]

Starting with a Rem 700 action std length with a mag bolt face, what should I build? I want something oddball for no reason what so ever. I have been considering a 300 h&h, maybe some type of rimless 405 win, maybe something metric. Please throw out some ideas.

Edit - part of me is thinking about a long range lead hurler. 26-27 inches of barrel. Maybe a rifle designed strictly for paper patching or powder coating? None of that is set in stone.

[pietro]

.

Lots to choose from.

This is a partial listing of those cartridges which use the same Belted Magnum case/bolt face - although some may be too long for the action you have:

.257 Weatherby Mag.
6.5 Rem. Mag.
.264 Win. Mag.
.270 Weatherby Mag.
7mm Rem. Mag.
7mm Weatherby Mag.
7mm STW
.300 H&H Mag.
.300 Weatherby Mag.
.300 Win. Mag.
.30-.338 Win. Mag.
.308 Norma Mag.
8mm Rem.
.338 Win. Mag.
.340 Weatherby Mag.
.350 Rem. Mag.
.358 Norma Mag.
.375 H&H Mag.
.416 Rem. Mag.
.458 Win. Mag.
.458 Lott

You can google any cartridge you're interested in, to find out if it's OAL will fit into your M700 action.
.

[Nobade]

I just built the same thing you are pondering. 1:18 twist 375 H&H with a Rem Varmint contour barrel, 26 inches long. Strictly for long range cast boolit shooting. Works great!

Pietro, you left out the 400 H&H. Shoots everything from 41 mag pistol bullets up to heavy 400+ grain BPCR bullets. If I didn't already have a 416 Taylor I would have built one of those.

-Nobade

[Hickok]

.30-.338 Win mag would be a an excellent cartridge. Just about a perfect .30 caliber magnum.

[69daytona]

.338 edge, its a 300 ultra mag necked up to .338 slightly better ballistics than the lupua mag but lots cheaper to load.

[376Steyr]

358 Norma. You can make cases from plentiful .338 Win brass, and have a vast array of 35 caliber moulds to work with, with easily found gas checks to boot.

[clintsfolly]

458 AccRel = 45lc-458 Lott or mild to wild ClintClint

[oldblinddog]

The .400 H&H looks interesting and brass is readily available. Never heard of it before today...

[micky_blue]

Look at the neck on the 400 H&H. It is LONG!!!!!

[oldblinddog]

Yeah it is! Plenty to work with.

[MarkP]

I wanted a med / big bore in a bolt gun to emulate 405 Win, 450 Marlin, 45-70's. I built a .416 for cast only shooting, it is based on a 300 WSM case. 20" bbl with 1:18" twist. It has a long neck and duplicates 450-400 ballistics. It is in a REM M SEVEN SS (formerly a 300 SAUM) top rifle in avatar.

[oldblinddog]

Pics? And do you have any trouble necking up from .30 to .40?

[MarkP]

From Left 300 WSM, necked to 416, shoulder pushed back, 308 Win, 350 Rem Mag, loaded 416 BAC with 400 gr, 400 gr, 315 gr. I use elliptical expander balls Hornady and homemade to expand neck. I usually use 338, 358, 375, 416. I could probably skip some of the intermediate steps.

[725]

Whatever you choose, I'd keep an eye on brass availability. If it's a pain to make or find brass, you could be setting yourself up for frustration. This sounds like a fun project.

[tygar]

I really like my .375/338. It is very accurate, is easy shooting, has more velocity than the H&H, is really easy to fire form 338 brass.

[oldblinddog]

That's outstanding! Who made your reamer and dies?

Edit: For the .416 BAC.

[Lloyd Smale]

I like you 300 H&H thought. I love mine and its a do anything gun if ever there was one and gets 10 out of 10 in the cool classic category

[micky_blue]

I am leaning twords the 300 h&h right now. I am trading emails with a couple barrel makers about a gain twist barrel so I can shoot both cast and jackets.

[tygar]

I am leaning twords the 300 h&h right now. I am trading emails with a couple barrel makers about a gain twist barrel so I can shoot both cast and jackets.

Ok don't usually get into "wants" cause I "want" & build "stuff", just because!

The 300 H&H is a classic & I've had a couple but it's not an efficient case. That's why all the cases made from it are so good.

A 30-06 is close to it's power & a 06AI pretty much equals it.

All the cases made from it & blown out & or shortened & necked up or down perform better.

So, if you just want it, cause, fine, but if you looking for a more efficient, powerful case, consider another.

Good luck.

[tygar]

I really like my .375/338. It is very accurate, is easy shooting, has more velocity than the H&H, is really easy to fire form 338 brass.

Actually shot it today with Lyman 246 (they cast at 270) & NOE 270. Had a couple groups with both bullets at 1" or less.