just want to know if there is any problems with using 458win ammo in a 458 lott? also can the 458 lott, be safely loaded to match 45/70 velocities? rifle is a ruger #1 ss/lam.

In order:

A: Not a problem.

B: .45-70 velocities/ballistics are not a problem and .45-70 bullets intended for those velocities work fine. Works better if you use WinMag cases than Lott cases because you have less excess case capacity to deal with. If one wanted to, one could cut back WinMag cases to .45-70 length and you wouldn't hurt anything though I've never heard of anybody bothering to do it.

Pussy cat or mean buff depending on how you load it.

I've got the same rifle.

I've got the same rifle also (well, 2, but don't tell my wife - one is a donor for a project)

30 gr of SR4759 and a cast 350gr bullet of sufficient hardness (I use laser-cast) will get you about 1500 fps with a 458WM case. I find this is a fairly accurate load out to about 50-100 yards on iron sights.

I've never had a problem shooting win mag in my Lott, but I hear over time this pactice will accelerate throat wear. Mine looks fine, after ~500 rounds.

If your going to do it a lot, you've got to ask why the hell you've got a 458Lott?! Personally ... I'd buy x100 Hornady basic brass, trim them to length and shoot as a 458Lott rather than stuff around and potentially risk damaging the chamber shooting a bunch of 458WinMag's in it. The 458Lott should be able to be reduced down to 45/70 levels if that's what you want to do. I'd rather pursue that option than risk damage to the rifle.
Cheers...
Con

If you're shooting light .45-70 loads the odds of you flamecutting the chamber aren't significant. You will, however, build up a ring of fouling in the forward bit of the chamber that will make extraction of proper rounds difficult if not attended to. Just my experience.

For .458WinMag loadings you may as well use Lott brass loaded down. For .45-70 load levels in a WinMag case, the excess case capacity becomes an issue. As to what .45-70 load levels in a Lott are worth? They are fun lulling people into a false sense of security before you hand them the rifle with a Lott round chambered. Like .577Rex practical joking that a few people around here may have done on youtube.

As for me, .45-70 is firmly a revolver and scout rifle cartridge, not a DG cartridge in my Lott but I do load some .458WinMag-ish (Lott brass using loads) for North American game because we don't have anything much big here. Hell, there isn't much worth shooting in Texas with my light .375 loads.

My CZ550 458 lott Shoots the 500gr bullet at 2280fps, the solid goes 2320 fps. I use IMR4320
for powder

ok, few opinions to work with here. i guess it would make sense to just use the lott brass and load accordingly, but just wondered about the 458win/lott firing damage. has any one seen this before???

It's supposed to be a common practise, and shouldn't be a problem. As Texas Tom said, just brush out the chamber before going back to the Lott's.

The idea is the same as firing .38 special in a .357 Mag chamber, and when you think of it, the Lott is doing the same thing to your chamber, only a little deeper in.

And even if eventually it did cut a slight ring, well I can't immagine much trouble draging a short amount of Lott neck over it.

quote:

If one wanted to, one could cut back WinMag cases to .45-70 length

It is obvious that Tom* does not believe that a long freebore should be very close to bullet diameter.

quote:

Originally posted by JAL:

And even if eventually it did cut a slight ring, well I can't immagine much trouble draging a short amount of Lott neck over it.

Unfortunately, that's not the case at all. The smallest amount of belling at the mouth is a real pain to extract. I have a Swedish 9.3 x 62 that someone loved shooting 9.3 x 57 with. The extractor must have solved the headspace issue, lol.

But there is the slightest amount of gas cutting at the very mouth of a 9.3 x 62 case and it is VERY difficult to pull the bolt past it.

quote:

Originally posted by WbyPower:

quote:

If one wanted to, one could cut back WinMag cases to .45-70 length

It is obvious that Tom* does not believe that a long freebore should be very close to bullet diameter.

I reckon that if you are shooting .45-70 loads for anything other than a prank in a Lott you aren't very worried about accuracy to begin with.

If you clean your chamber after each shooting session, you'll never have a problem.-ROB

thanks rob.

I find it fun and practical to shoot reduced loads in the .458 Lott. I use cast (self) bullets and 5744 powder @ 1800-1900 f/s. Shooting it as a blackpowder express rifle is an interesting project. Dr.C

I never had a problem with my Lott from shooting .458 Win. rounds in it and put a heck of a lot of them through it..

I used short brass in my 9.3x62 from using 06 cases and it never hurt a thing...

I think these old wives tales that someone made up a hundred years ago just go on an on as fact and that just ain't so...I have a collection of them somewhere around my office.

My CZ is marked for both the 458 win mag and lott. I don’t think they would have marked it that way if they thought there would be a problem.
I have a interest in shooting reduced loads in the Lott. I use to use reduced loads in my 45-70. I think the load was in the neighborhood of 10 gr Unique and a 340 gr cast bullet with a ¼ sheet of tissue paper over the powder to keep it in place. I think it got less than 900 fps, this was before aneyone started using foam. I want to try this load in my lott using foam to see how it shoots. I will have to get some load data for Trail Boss it looks like a great powder for reduced loads in big cases.
Tom
I can assure you that properly done reduced loads in the lott using lott brass will surprise you . When you use short cases you will have a big jump getting to the rifling.
Bill