How would this work for a rebore to 450 Rigby? Seems to me it's a no brainer. I've been thinking on this for a while and just got around to posting the question here.

David Walker

.. I think the outside barrel diameter for the Rigby is the same as the 458 Lott so I think it would work great ... be a nice light weight Smasher ......................


I got a kick from your comment , going half way around the world to get across the street ....

There are very slight differences between these cases according to CIP dimensions, but they are minor & whether or not it would necessitate setting your barrel back one turn is debatable, 5 degrees shoulder angle, 0.27mm length at the shoulder, 0.46mm shoulder diameter, the 450 is the smaller in each case, not sure how this translates into reality.
Steve

Gumboot, I try to keep it light and entertaining around here. Some guys take this stuff too serious.

Shinzo, Thanks. I have yet to compare the case dimensions. That may be an issue or it may be close enough to simply fireform the cases and then neck size as much as possible. My 416 brass, Hornady, stretches so little that I don't think it would be a problem with that one. As long as you keep the loads at a sane pressure level, which these big cases are very capable of, the brass just doesn't move much, it seems.

Thanks,

David

Hi

Why not buy a 458 Lott and just ream the chamber too 450 Rigby, open the bolt face a little bit and Bob's your uncle

The Lott is a possibility. My thoughts were that reboring the 416 is pretty much a one shot deal, to the greatest extent possible. The Lott would be more likely to present feeding issues, plus the bolt face issue. The 416 is basically the same case, inor exceptions noted, and therefore, theoretically, should be easier to make work. Of course this is the reason I'm asking this question now. Like to have all the ideas before I make a purchase.

David

What is the point of this? The RSM comes in 458 Lott.

David,

Here's a RSM 416 Rigby for sale.

http://www.24hourcampfire.com/ubbthreads/ubbthreads.php...age/1/gonew/1#UNREAD

Mike, The point is I don't want a Lott. Everybody's got a Lott. (except me of course) That's just too easy. Plus, I like the sound of "450 Rigby". Not snobbish, I just like what I like. The low pressures offered aren't a bad thing either. Not that pressure is a real issue IMO anymore with the modern powders we have. Low pressure means longer life for everything involved, be it the rifle or the brass. I don't try to put logic to this stuff.

Lee, Thanks for the lead. That's a hell of a deal on both rifles IMO. For sure a good deal since it includes a $400 scope and some ammo. The Rigby brass is worth at least $1 each. This is a project I'm looking at for down the road. Maybe late next year. I've got a 22-250 being built, or rebuilt, by Roger Ferrell as we speak. And then there's that Mark X action in the safe that's going to Roger when I pick up the 22-250 to start it's new life as a 264 Win Mag. This is just something I've been thinking about for a while now. Aren't you working on a 450 build of some sort. I think I noticed you had a blank for sale and maybe a rifle as well. Hope to see you in Dallas again. I'll be there if work holds up for us.

David Walker

Mike, I reread my reply and didn't want you to take it the wrong way. Not trying to be a smart ass. Just a feable attempt at dry humor, or something. Some guys take some of this stuff way too seriously.

David

David,

I was building a 404 Jeffery, but I ended up scrapping the project and selling it when New_Guy posted that Heym .450 Rigby in the classifieds. I've sold a few rifles to cover the cost and should have the Heym in a couple of weeks.

We are going to be at DSC and look forward to seeing you again.

Lee

Lee, Congrats on the Heym. They make some damn fine rifles, from what I've seen. I like the classic lines on their rifles and they have a great reputation around here and elsewhere. Most of what I've seen from them are their doubles, but I really like what I've seen of their bolt guns.

I do remember now the 404. That was to be a really nice rifle as well. Shame you had to scrap that one. Would've been a nice rifle to own just because. But we do have to make sacrifices. I'm sure you'll not regret your decision.

Congrats,

David

I hated to get rid of the 404, but with the economy the way it is, I couldn't keep both and still stay on budget for next year's hunt. I'm sure I'll end up with another 404 in a few years.

X2,
I have hunted elephant, buffalo, kudu and impala w 450 Dakota which is like a 450 Rigby.

Shot about 600 rounds of reloads through my rifle.

It is a very easy ctg to reload for.

You can dial in about any velocity you want.

Not the best PG rifle, and more than you need for elephant at point blank.

But a great and versatile ctg.

I would probably take 2 rifles next time.

Andy

I have a 450 Dakota myself, a converted CZ 458 Lott. Fine rifle for anything that walks, swims, crawls or flies on this planet. Pair it with my CZ 416 Rigby or the one I have in 375H&H and you are good to go.

Rich
DRSS
Knowledge not shared is knowledge lost...

Thanks for all the info guys.

So to summarize thus far, it looks like might have to set the barrel back one turn and rechamber it along with a rebore. Or it might work like I said, to just fireform the brass and necksize afterwards.

The search for knowledge marches on.

Thanks,

David

Lee, I understand the budget constraints far too well. I had to scrap my plans for Africa next year. Our business is really up and down right now. If I didn't already have project rifles in the works I'd not have any at all. Just hoping stability isn't too far around the next corner. Need to get back to building my arsenal and getting my fat ass across the pond.

David

x2msog
I guess I'm just too practical. Wasn't insulted either Get what you want

quote:

Originally posted by x2mosg:
How would this work for a rebore to 450 Rigby? Seems to me it's a no brainer. I've been thinking on this for a while and just got around to posting the question here.

David Walker

To answer your question, it would make better sense to rechamber a 458 lott RSM than to rebore.

Why? there's nil risk of a 458 barrel being damaged on the rebore, and the same risk (other than opening the bolt face) for the chambering and feeding

IIWM (if it were me) i wouls start there, and if i had a rigby, i would sell it to start with the 458...

of course, i would also have it rebored to either .475 or .510, but that's neither fish nor fowl.

can a rigby be rebored to .458 and rechambered? without a doubt

OK. So maybe rechambering would be the way to go. I'll have to mull it all over some more. In the meantime, keep it coming. I guess before I get too carried away here I need to shoot a 458 of some sort to be sure I can take the recoil. The 416 is a step up from the 375, but it's not a real problem to fire several rounds from the bench. I'd say 10 or so at the bench at one sitting would be enough of the full power stuff. I usually try to shoot the bigger guns with some breaks in between with lighter, "friendlier" stuff thrown in to ease things up a bit.

Keep it coming and thanks,

David