My reloading books don't show any reloading data for the .458 Lott. I would like to know what the difference is between the .458 Winchester Magnum and the .458 Lott? I know the reasoning for the Lott is being able to stuff more powder in the case. Also, the .458 Lott is supposed to digest the .458 Winchester Ammo (practice purposes, of some kind?). And there have been numerous posts, mine included, about changing a .458 Winchester Magnum over to a .458 Lott. Naturally I misplaced the info, forgot where the other posts were located, and again would like to know. And "NO" I'm not going to tatoo the information on my arm this time! Again, all help appreciated. Thanks, Mike

basic differences

458 win mag has a 2.5 " case the 458 lott has a 2.800 case

the 458 is more suted to 450 grain bullets and lighter in order to achive proper dg hunting velositys the 458 lott will reach 2300+ alot easyer with a 500 bullet with out heavy compression of the powder.

you can have a gn smith ream your chamber with a 458 lott reamer for about 50 bucks and it works great.

i had a 458 lott ruger 1 and it was a very well made accurate rifle but sold it so i could replace it with a more suitable elephant hunting gun the sercy 500 nitro express.

700 Nitro, How about the OAL in the magazine of the CZ .458 Lott American; will it clear and allow smooth feeding? If so, that's the way I'm headed. Thanks again, Mike

Cartridge drawings at:
http://stevespages.com/page8d.htm

Loading data at:
http://stevespages.com/458.html

riccairdelli, I've got Steve's Reloading posted in my "favorites" as I write this. Thanks a bunch and good shooting! Mike

from what hear the 458 lott cz is a great gun and more than few members on this board owen 1 i say if you want it go for it. it would beet a 458 win mag anyday.

For tails,

I have a .458 lott made from a cz 550 .458 win mag & IMHO the cz 550 is suited to the conversion, I get 5 down & one up the spout and plenty of room to seat bullets out, a little extra action weight does not hurt with the .458 lott either.

Reloading the 458 Lott





Load 8371 in caliber .458 Lott



LoadID 8371

Bullet Swift A-Frame

BulletWeight 400 grs

Powder IMR 3031

PowderWeight 83 grs

Primer Federal 215

Brass Make Winchester 375

Barrel Length 24 (inches)

C.O.L 3.6 (inches)

Velocity 2511 fps

Group (inches by 3 shot at 100 yds)

Submitted Date 9/30/2003 2:49:00 PM

Submitted By Michael

Comment Good for large antelope and such



Energy 5588 ft-lbs

TKO 65.72

OGW 3800 lbs



Load 7591 in caliber .458 Lott



LoadID 7591

Bullet Barnes X

BulletWeight 350 grs

Powder Alliant Reloader 7

PowderWeight 83 grs

Primer Federal GM

Brass Make Winchester

Barrel Length (inches)

C.O.L (inches)

Velocity 2750 fps

Group (inches by 3 shot at 100 yds)

Submitted Date 4/30/2003 2:14:00 AM

Submitted By Nick

Comment Molycoated bullet. Begin 10% lower in your rifle. Not responsible for your actions.



Energy 5865 ft-lbs

TKO 62.98

OGW 3821 lbs



Load 8372 in caliber .458 Lott



LoadID 8372

Bullet Woodleigh

BulletWeight 400 grs

Powder IMR 3031

PowderWeight 80 grs

Primer Federal 215

Brass Make Winchester 375

Barrel Length 24 (inches)

C.O.L 3.6 (inches)

Velocity 2410 fps

Group (inches by 3 shot at 100 yds)

Submitted Date 9/30/2003 2:49:00 PM

Submitted By Michael

Comment Excellent for Lion



Energy 5148 ft-lbs

TKO 63.07

OGW 3359 lbs



Load 8373 in caliber .458 Lott



LoadID 8373

Bullet Woodleigh

BulletWeight 400 grs

Powder Alliant Reloader 7

PowderWeight 75 grs

Primer Federal 215

Brass Make Remington 416

Barrel Length 24 (inches)

C.O.L 3.6 (inches)

Velocity 2435 fps

Group (inches by 3 shot at 100 yds)

Submitted Date 9/30/2003 2:49:00 PM

Submitted By Michael

Comment Very good load for large antelope, elk, bear & lion



Energy 5255 ft-lbs

TKO 63.73

OGW 3465 lbs



Load 8274 in caliber .458 Lott



LoadID 8274

Bullet Barnes X

BulletWeight 450 grs

Powder Hodgdon H4895

PowderWeight 81 grs

Primer Federal 215

Brass Make Hornady

Barrel Length 22 (inches)

C.O.L 3.62 (inches)

Velocity 2350 fps

Group (inches by 3 shot at 100 yds)

Submitted Date 9/2/2003 2:50:00 PM

Submitted By Jerry Smith

Comment 5 fps average deviation in tests



Energy 5507 ft-lbs

TKO 69.19

OGW 3942 lbs



Load 8276 in caliber .458 Lott



LoadID 8276

Bullet Barnes Super Solid

BulletWeight 450 grs

Powder Hodgdon H4895

PowderWeight 81 grs

Primer Federal 215

Brass Make Hornady

Barrel Length 22 (inches)

C.O.L 3.62 (inches)

Velocity 2350 fps

Group (inches by 3 shot at 100 yds)

Submitted Date 9/2/2003 2:50:00 PM

Submitted By Jerry Smith

Comment 5 fps average deviation in tests



Energy 5507 ft-lbs

TKO 69.19

OGW 3942 lbs



Load 7589 in caliber .458 Lott



LoadID 7589

Bullet Barnes X

BulletWeight 450 grs

Powder Alliant Reloader 7

PowderWeight 78 grs

Primer Federal GM

Brass Make Winchester

Barrel Length (inches)

C.O.L (inches)

Velocity 2440 fps

Group (inches by 3 shot at 100 yds)

Submitted Date 4/30/2003 2:14:00 AM

Submitted By Nick

Comment Molycoated bullet. Begin 10% lower in your rifle. Not responsible for your actions.



Energy 5936 ft-lbs

TKO 71.84

OGW 4413 lbs



Load 7590 in caliber .458 Lott



LoadID 7590

Bullet Barnes Super Solid

BulletWeight 450 grs

Powder Alliant Reloader 7

PowderWeight 75 grs

Primer Federal GM

Brass Make Winchester

Barrel Length (inches)

C.O.L (inches)

Velocity 2360 fps

Group (inches by 3 shot at 100 yds)

Submitted Date 4/30/2003 2:14:00 AM

Submitted By Nick

Comment Molycoated bullet. Begin 10% lower in your rifle. Not responsible for your actions.



Energy 5553 ft-lbs

TKO 69.49

OGW 3993 lbs





Load 8798 in caliber .458 Lott



LoadID 8798

Bullet Hawk FP

BulletWeight 480 grs

Powder IMR 4320

PowderWeight 82 grs

Primer Winchester LRM

Brass Make Hornady

Barrel Length 24 (inches)

C.O.L 3.55 (inches)

Velocity 2230 fps

Group (inches by 3 shot at 100 yds)

Submitted Date 1/15/2004 6:08:00 PM

Submitted By S. M. Thomas

Comment



Energy 5289 ft-lbs

TKO 70.04

OGW 3833 lbs



Load 8369 in caliber .458 Lott



LoadID 8369

Bullet Hornady

BulletWeight 500 grs

Powder Alliant Reloader 15

PowderWeight 83 grs

Primer Federal 215

Brass Make Hornady

Barrel Length 24 (inches)

C.O.L 3.6 (inches)

Velocity 2226 fps

Group (inches by 3 shot at 100 yds)

Submitted Date 9/30/2003 2:49:00 PM

Submitted By Michael

Comment Very Accurate Easy to handle



Energy 5490 ft-lbs

TKO 72.82

OGW 4136 lbs



Load 8370 in caliber .458 Lott



LoadID 8370

Bullet Barnes Solid

BulletWeight 500 grs

Powder Alliant Reloader 15

PowderWeight 82 grs

Primer Federal 215

Brass Make Remington 416

Barrel Length 24 (inches)

C.O.L 3.6 (inches)

Velocity 2263 fps

Group (inches by 3 shot at 100 yds)

Submitted Date 9/30/2003 2:49:00 PM

Submitted By Michael

Comment Excellent load, I have taken two elephant with this load.



Energy 5674 ft-lbs

TKO 74.03

OGW 4346 lbs





Load 8374 in caliber .458 Lott



LoadID 8374

Bullet Hornady FMJ

BulletWeight 500 grs

Powder IMR 4320

PowderWeight 80 grs

Primer Federal 215

Brass Make Superior

Barrel Length 22.5 (inches)

C.O.L 3.6 (inches)

Velocity 2150 fps

Group (inches by 3 shot at 100 yds)

Submitted Date 9/30/2003 2:49:00 PM

Submitted By V.P.D.

Comment Several groups under an inch.



Energy 5121 ft-lbs

TKO 70.34

OGW 3727 lbs



Warning: Even this was a safe load in current weapon, ALWAYS start 5-10% lower and work yourself up to a safe max level in your weapon.





Pottsy



P.S These loads are cut from RELOAD.COM

I used the 458 Lott for awhile back a couple of years ago and did a lot of load testing..My finding were that IMR-4320 is the only powder that will send a 500 gr. bullet down range at 2350 FPS in about any barrel length and it a 26" barrel it will do even more....Start with 82 grs. and work up to perhaps 84 or 85 grs., depending on your gun..Most guns settle at 84 grs. it seem to me...

Thanks everyone for all the help. Good shooting! Mike

Has anyone used WW 748 in the Lott? I've been using 93 grains of WW748 behind the old Hornady 500 Grain FMJ bullets for years. We used this in all of the company rifles and I use it in my own. Back in 1988 Chet Brown brought a .458 Lott reamer with him on his hunt at my request. He was then using WW 748. That's what got me started with it. 93 grains seems okay. Primers are okay and no sticky cases....even in the 90 to 100 degree heat. I'm not sure if Chet is still recomending that powder or not. Seems when he reached 97 grains his rifle blew up! Guess that was a bit too much

Of course, the usual caveat applies to the 93 grain load. I have yet to shoot it through the screens. Haven't shot the rifle in a number of years and with the elephant campaign behind us now I probably won't.

Rich Elliott