I have the ruger m77 magnum in their upgrade .458 lott rifle with express sights.. Has anyone had any problems with the 450 grain north fork flat nose solids not feeding properly,or have you had good luck with them feeding properly? I reposted this from the african hunting forum on this site becouse of no answers there...thanks dave

My Ruger 458 will hang up with the new hornady solids which have a flat top. It feeds flawlessly with round nose and spitzer bullets.
My Ruger 416 rigby will feed anthything
cnm

my rsm in 458 lott eats everything.

All the RSM's have issues with feeding flat nosed bullets and often round nosed too! Go figure!! I have owned and extensively operated a few, believe me I know of what I speak (regardless of what some may say).

look at your ramp. flat nose will hang up if there is any vertical tooling grooves in my experience. A smith can fix this if you send problem dummy rounds.

I'd be willing to bet that any feeding problems it might have, can be corrected easily and with little cost by a competent gunsmith. My Rigby feeds all I've put through it like butter, from the day I bought it. Only problem I had was in loading, the follower would hand and not want to compress down. Roger Ferrell bedded and found that the inletting of the stock was really tight. He opened it a bit and fully glassbedded the entire action. No problems now. She's slick as snot.

David

quote:

Originally posted by cnm123:
My Ruger 458 will hang up with the new hornady solids which have a flat top. It feeds flawlessly with round nose and spitzer bullets.
My Ruger 416 rigby will feed anthything
cnm

My RSM .416 Rigby is also a slick feeder with everything, GSC FN and North Fork FP included.
Maybe the box geometry is a better fit for .416 Rigby?
It is three down in a shallow box depth for .416 Rigby.
Maybe wider than needed for .458 Lott, and they are using the same box for both?
I would have to go measure and compare to "Mauser Cosine Law."
This might be another reason to recommend the Ruger .416 Rigby,
besides the phenomenal accuracy seen with most Ruger RSMs of any caliber.

It seems that the .416 Rigby's feed fine and maybe the .458 Lott's have problems feeding...Could it be the case dia. to bullet dia. relationship that makes this so?..
Just a guess on my part as I don't own a RSM, 416 Rigby or .458 Lott...
But I do have a little Brno 21H in 8X57 that I have to fiddle fart around with seating depth to get 240gr FN cast boolits to feed with out the nose hanging up on the chamber face...

to see how my ruger magnum .458 would react i loaded some tsx 450 grain bullets in backwards to see what would happen.. the first bullet on top of a full mag seems to hit the collar in most situation and feed ok, the second round can get in big trouble as it crosses over into the cutout for the extractor.. The extractor leaves no feeding collar in this area of the chamber.. In order for a bolt gun to be infallible they will need a angled up strait line box,(overlay the top bullet in front of the belt?) not side to side as it is now.. Of course im not a gunsmith or gun dsigner and do not know the problems that these types of magazines have.. The remington 788 comes to mind in the type of internal box or clip needed. dave

My .416 will stutter a little, but a minor change in seating depth fixes it. It feeds fine with Barnes flat noses and NF's if the length is right.

quote:

Originally posted by RIP:

quote:

Originally posted by cnm123:
My Ruger 458 will hang up with the new hornady solids which have a flat top. It feeds flawlessly with round nose and spitzer bullets.
My Ruger 416 rigby will feed anthything
cnm

My RSM .416 Rigby is also a slick feeder with everything, GSC FN and North Fork FP included.
Maybe the box geometry is a better fit for .416 Rigby?
It is three down in a shallow box depth for .416 Rigby.
Maybe wider than needed for .458 Lott, and they are using the same box for both?
I would have to go measure and compare to "Mauser Cosine Law."
This might be another reason to recommend the Ruger .416 Rigby,
besides the phenomenal accuracy seen with most Ruger RSMs of any caliber.

My Ruger M77 Magnum 470 Mbogo (nee 416 Rigby) feeds everything slicker than whale crap on an ice floe. I have run a few different FN's through it with no hangups whatsoever.

What Canuck says, plus one! I remember when I got my old model RSM in 416 Rigby, it fed everything flawlessly. I think they might be trying to cut corners with the Lott-sized case, or unwilling to make a completely separate feed system. I was invited to a tour of the Arizona plant nearly twenty years ago, and they were pulling their hair out in frustration trying to get a couple tool room jobbies in 404J and 505G to feed properly. IMHO, that is why they decided to not offer them after two years of prick-teasing us with full page ads and the catalogs.

By comparison, look at what Wayne does with the CZ. His reworked ones will feed any bullet shape and OAL that will go in the magazine box, and he does not have to do much more than a "touch up" for that. Ruger has vastly underestimated the market for .40"+ caliber big bore bolt rifles, and seems to have lost that "spark" when Bill Ruger ran the place. It's a bit sad, because a lot of people would pay the premium to buy American if the dang things just worked out of the box.

Rich
Buff Killer...with a CZ rechambered to 450 Dakota AND no issues feeding the Swift A-frame SPs or old-style Barnes single driving band solids.