I have a Remington 700, .458 Win Mag. When I put three down in the internal magazine, and load one more manually into the chamber, for 4 rounds total...
I find that as I work the action, the rounds coming out of the internal magazine have a tendency to jump over the bolthead and occasionally get "hung" with the bullet starting to chamber, the bolt jammed in under the case...
Anyone ever seen this..??
What would be a way to attempt a fix ( besides buying another rifle...)
Thanks Folks...
Cheers,
Don

my m70 did that until i changed the magazine spring and follower... i'm sure someone else will chime in and tell you what replacement parts will help yours...

This is fairly common.I assume by your description that it doesn't happen when two rounds are in the mag.

I would have to examine the mag spring and follower to see what tweeking would solve the problem.Offhand,I'm thinking that a bit less spring tension may be the solution but then you create a potential feeding problem with the last one or two rounds from the magazine.

This,of course, would need to be tested to be sure either way.

If it were mine,I'd leave it as is.Three shots without a reload is not bad and with the Remington being a push feed,giving the chamber a quick reload is as slick as grease.

Almost every Remington I have owned would do that. I just learned to put one less round in the magazine than capacity. I tried changing springs and the follower but nothing cured the problem that I found. For this reason I would not consider a Remington for something that bites back!

The one and only Remington that I've owned, a .243, would do that. When cycled quickly, sometimes the round coming up from the magazine would fly completely out of the rifle. A couple of trips back to Remington never completely fixed it. When all of my guns were stolen, it was the only one I was glad to see go.
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"Serious rifles have two barrels, everything else just burn gunpowder."

Hi Don
I have the same thing happening with my 300 Weatherby that's built on a Rem 700. What I'm going to try is to get the Ultra Mag magazine box, follower and spring. The reason is that the 3 Weatherby rounds will fit and feed flawlessly in my buddies 338 Ultra Mag and the spring tension is totally different. My spring seems to be stressed putting the third round under and his it goes without a problem and the tension is way softer. The difference in the magazine box width allows the rounds to stack better.
Take good care,
Dave

Usually the simple/obvious fixes don't work. You need to carefully study whats going on and then make small changes to see if the problem gets better or worse. Watch the bullet nose, is it hitting the ramp cleanly or at an angle? The case should slide up in a straight line from either side of the box. If its going into the chamber crooked you have a big problem. Is the bolt catching the top of the case and sliding in straight until it suddenly pops free or not. Is the case head porposing thus missing the lower part of the bolt? Where on the rails does it pop out? Is that where the lower cartridge interferes? Sometimes you have to open the rails a bit in just the right place. Remember use a swiss file never a dremel tool. Perhaps the bullet nose is not feeding up the ramp smoothly enough. Here polishing can make a big difference sometimes you need to grind down the ramp or the sides of the ramp. The follower may need to be reshaped for some cartridges. The worst problems are when the mag box itself doesn't have the right dimensions for the case .i.e. the .338 ultramag. Remington actually cut windows out of the side of the box to improve the feeding. I made a new box for mine and reshaped the follower. I could go on and on. These problems are actually fun to diagnose and fix. If you can take some real good pics, perhaps I can suggest the cure. -Rob

my nephews 300 win mag would do that, we changed the magazine box and cured the problem,seems the one that came with the rifle was a little out of whack, don if you have another 700 mag switch the boxs and see what happens, i also tryed that 458 load 50 gr. 4895 with 500gr. lead bullet ,i think it,s gonna be o-k.

Well,
Lots of things to look at...Thanks for the thoughts folks. Odd thing is, it seems to work fine with 500gn. bullets. I get the "kick-outs" when I load 350's and 405's.
Ho...
Glad you found some success with that 500 gn. cast load. I'm gonna take that one hog shooting later this fall when it cools off a bit down here.
Cheers,
Don

quote:

Originally posted by Don Edwards:
I have a Remington 700, .458 Win Mag. When I put three down in the internal magazine, and load one more manually into the chamber, for 4 rounds total...
I find that as I work the action, the rounds coming out of the internal magazine have a tendency to jump over the bolthead and occasionally get "hung" with the bullet starting to chamber, the bolt jammed in under the case...
Anyone ever seen this..??
What would be a way to attempt a fix ( besides buying another rifle...)
Thanks Folks...
Cheers,
Don

Don, was your Remy originally a 458 or a covert from another Magnum cartridge. I was abel to cure the jumping out problem when I converted to the rum cartridge. I opened the width of the feed ramp to accept the width of the rum shoulder. It was the only modification I did to the action and it feeds like it was meant to do. Make sure the feed ramp is opened wide enough to accept the 458 bulet. No change to the angle or lenght of the ramp only the width.

That rifle is a Lefty, and was built from a 7mm Mag. The feed ramp has been polished. It seems however, that the case is "jumping over the boltface" when hit by the bolt, before the bullet encounters the ramp. I'll watch it closer and verify if this is true to check your idea on ramp involvement.
Thanks,
Don

HI Don,
I just received my Ultra Mag magazine box follower and spring. This totally eliminated the problem. My gun was originally a 25-06 Then a 7mm STW moving onto a 300 Win Mag and is now a 300 Weatherby. The change over was very cheap and is a permanent fix. You can see the magazine box is wider which allows the cartridge to engage the rails better. The follower allows the cartridges to stack better without excessive spring tension. Your 458 cartridges are basically the same shape as the 300 for their length so this might be a fix for you also. It is deffinatly worth a try.
Take good care,
Dave