458 Lott and 450 TSX

[Green Chile]

Who has experience with the 450 TSX in a 458 Lott? I was looking at load data with H4895 in the 2200 fps range.

 

[TOBY458]

I've been shooting them in my 458 Win Mag. I'm getting around 2175 fps with 70gr X-Terminator powder. If I seat them out to Lott length in my R8 magazine, I'm using 80gr TAC for a little over 2200fps.

 

[Green Chile]

Thanks Toby. I know I can push them faster but that 2200 range (give or take a bit) is a great speed without a lot of pressure or recoil. Have you used the 450 TSX on game? I haven't yet but I have hundreds of them on hand and would like to use them in the field.

I'm going to have JJ build some rings/bases on a Champlin 458 Lott he built in the 70's. Plan is to put the Z8i 1-8x scope on it and take it back to Africa for buff, eland, etc.

 

[TOBY458]

Thanks Toby. I know I can push them faster but that 2200 range (give or take a bit) is a great speed without a lot of pressure or recoil. Have you used the 450 TSX on game? I haven't yet but I have hundreds of them on hand and would like to use them in the field.

I'm going to have JJ build some rings/bases on a Champlin 458 Lott he built in the 70's. Plan is to put the Z8i 1-8x scope on it and take it back to Africa for buff, eland, etc.

Yes, I agree. 2200 fps is ideal IMO. Recoil is very manageable in my R8. Total weight with a sling and loaded magazine is 9lbs. So easy to carry in field and light on the shoulder as well.
I haven't used the 458 TSX on game yet, but have used them in 375 with excellent results.

 

[Green Chile]

Your R8 is lighter than my Champlin with the octagonal barrel. It's 9 lbs empty with no sling and iron sights (no bases/rings).

 

[TOBY458]

Your R8 is lighter than my Champlin with the octagonal barrel. It's 9 lbs empty with no sling and iron sights (no bases/rings).

Yes. The R8 Professional is pretty light with no kickstop in the stock. If I add a scope, it brings it to 10lbs. I also have a Winchester 70 458WM that weighs more, but for some reason the Winchester has more felt recoil than the R8. Probably comes down to stock fit. What action did JJ build your rifle on?

 

[Green Chile]

It's one of the full custom, 60 degree bolt throw Champlin actions that were octagonal to match the octagonal barrel. I have a matching one in 375 H&H. They have 3 ribs inside the action that create the smoothest bolts I have ever handled. Zero wiggle or slop.

 

[meigsbucks]

Not H, but IMR 4895, I was getting 2238fps with the 450gr TSX out of a #1.
H335 was giving me 2265fps. I’ve settled on IMR 3031. 2317fps and better accuracy.

 

[Green Chile]

Thanks. All of that data was from your Ruger #1? Any results on game?

 

[meigsbucks]

Thanks. All of that data was from your Ruger #1? Any results on game?

All from the #1, measured with LabRadar chono. I haven’t used on game yet, but the next time I chase Buffalo, it will be my load.

 

[Green Chile]

Thanks. I think the tropical #1 barrels are all 24"? My Champlin is also 24".

Sounds like several of us are making plans for this 450 TSX.

 

[1r4rc]

I'm shooting the 450 gr TSX about the same speed as Toby in a 458 Win Mag. I like it. It has worked great on Buffalo on down... Kudu, Waterbuck, Wildebeest, Bushbuck, Impala, Warthog, etc and even a little Grysbok. Pretty forgiving whatever the angle on the small stuff. Reassuring if only have a small window. Run stem to stern or fly right through the small stuff w/o much damage. The more resistance the more damage it seems. Took out the heart and penetrated well on a very nice buff we came across looking for smaller stuff. Has been opening as advertised.

Thanks Toby. I know I can push them faster but that 2200 range (give or take a bit) is a great speed without a lot of pressure or recoil. Have you used the 450 TSX on game? I haven't yet but I have hundreds of them on hand and would like to use them in the field.

I'm going to have JJ build some rings/bases on a Champlin 458 Lott he built in the 70's. Plan is to put the Z8i 1-8x scope on it and take it back to Africa for buff, eland, etc.

 

[baxterb]

I'm shooting the 450 gr TSX about the same speed as Toby in a 458 Win Mag. I like it. It has worked great on Buffalo on down... Kudu, Waterbuck, Wildebeest, Bushbuck, Impala, Warthog, etc and even a little Grysbok. Pretty forgiving whatever the angle on the small stuff. Reassuring if only have a small window. Run stem to stern or fly right through the small stuff w/o much damage. The more resistance the more damage it seems. Took out the heart and penetrated well on a very nice buff we came across looking for smaller stuff. Has been opening as advertised.

You using the 72grains aa2230 recipe?

 

[Green Chile]

Interesting that you mentioned grysbok. I was wondering if they pencil through on tiny 10 or cut them in half? That’s a factor to keep in mind for some of my hunts.

I loaded up some with 75.0 H4895 tonight. It’s a compressed load that should be around 2250-2300.

 

[Green Chile]

Are you guys putting optics on your 458’s or using iron sights?

 

[meigsbucks]

Are you guys putting optics on your 458’s or using iron sights?

I have a 1.5-5x Leupold with a heavy duplex reticle. I also replaced the factory front bead with a large white bead. I also have a NECG removable peep sight for back up.

 

[WAB]

Are you guys putting optics on your 458’s or using iron sights?

VX6 1-6x24 in Talley QD rings.

 

[1r4rc]

You using the 72grains aa2230 recipe?

R7... great accuracy in my rifle (3 holes touch, consistently)

 

[1r4rc]

Interesting that you mentioned grysbok. I was wondering if they pencil through on tiny 10 or cut them in half? That’s a factor to keep in mind for some of my hunts.

I loaded up some with 75.0 H4895 tonight. It’s a compressed load that should be around 2250-2300.

Pencil through - not enough resistance to open up. Kind of a laugh but works great.

 

[1r4rc]

I have a 1.5-5x Leupold with a heavy duplex reticle. I also replaced the factory front bead with a large white bead. I also have a NECG removable peep sight for back up.

For the 458, primarily a Leupold 2.5-8 in QDs, w/ 1-4 at camp for backup... if things are tight or its necessary, I go to a 470 double w open sights.