I realize this has probably been asked and answered 1000 times, but anyone have any pet loads for the 458 Lott with 450gr A-Frames they would be willing to share?

quote:

Originally posted by ScottS:
I realize this has probably been asked and answered 1000 times, but anyone have any pet loads for the 458 Lott with 450gr A-Frames they would be willing to share?

That is actually a complex issue. Without knowing what parabola you intend, it would be hard to say. That is where tests come in... ... ... hmmmmmm PM wanders off to think about that but probably doesn't have an answer to a question he isn't sure he understands.

You can make .458 Loff FLY with black powder and black powder alterns, and make it do nothing in it's "magnificent state (and it is a really smart cartridge) but your question borders on "cosmological steven hawking stuff" if you don't have a known "INTENT".

No offense, I stared at the question for a long time and almost typed an answer but I realized I did NOT KNOW what I was answering... ...

You made me re-think large rifles again. I actually appreciate that, but I do NOT have a generic answer. :-)

quote:

Originally posted by ScottS:
I realize this has probably been asked and answered 1000 times, but anyone have any pet loads for the 458 Lott with 450gr A-Frames they would be willing to share?

Scott;

Barnes #4 is probably your best bet...

Bob

www.bigbores.ca

quote:

Originally posted by Precision Man:

quote:

Originally posted by ScottS:
I realize this has probably been asked and answered 1000 times, but anyone have any pet loads for the 458 Lott with 450gr A-Frames they would be willing to share?

That is actually a complex issue. Without knowing what parabola you intend, it would be hard to say. That is where tests come in... ... ... hmmmmmm PM wanders off to think about that but probably doesn't have an answer to a question he isn't sure he understands.

You can make .458 Loff FLY with black powder and black powder alterns, and make it do nothing in it's "magnificent state (and it is a really smart cartridge) but your question borders on "cosmological steven hawking stuff" if you don't have a known "INTENT".

No offense, I stared at the question for a long time and almost typed an answer but I realized I did NOT KNOW what I was answering... ...

You made me re-think large rifles again. I actually appreciate that, but I do NOT have a generic answer. :-)

quote:

....Without knowing what parabola you intend, it would be hard to say....

quote:

Location: Earth

Makes you wonder, is this Location right ?

With my 458 Lott I use IMR4320 and my solids go
2363 FPS. I also have a 26" barrel. My loads are around 83.5. Now this works for me. It may be to much for you. I worked this load up.

If a person doesn't know how a person wants things to fly and what they are using things for, the answer isn't easy

I actually DO live on earth, but the longer I live the less I like to answer questions.

Different things work for different purposes, and you could hunt rabbits with a Lott.

Thin skin, thick skin, dangerous or not???

Those are all semi-relevant.

I suppose I could have said "I like Barnes and Alliant" but I didn't quite understand the question.




As a moronic "earthling", I actually know LESS things every year as I get more data!

jro45,
Thanks.

Precision Man,
Won't be hunting rabbits with it. I would like to get between 2350 and 2400 fps using the 450gr A-Frame bullet. Basically just looking for data that has gotten into that velocity range, with good accuracy, from others. Was going to start off with IMR4064 as I know it will hit the velocity window I am seeking. Really curious as to what some of the Accurate or new Reloder (Alliant) powders can do.

Scott,

I put together some loads with AA 2520 and a 450 swift a week ago. I used some data that would produce 2300 FPS with a 500 Hornady soft (accurate powders web site). I have not pulled the trigger on them yet.
I will report when i get them across the chrono. My gun sports a 23" tube. I am anticipating 2350 FPS but who knows?
EZ

Actually 83.5 grs of IMR-4320 and a 450 gr. bullet is a rather mild load in most .458 Lotts, at least from a balistic standpoint. That is my load for a 500 gr. bullet which is what I recommend for any .458..

At any rate recoil of the fully loaded .458 Lott is quite grusome to me!

I shot mine hot on several hunting trips with a 500 gr. bullet at 2350 FPS, but later loaded it down to 2150 to 2200 FPS with a 500 gr. Woodleigh; 480(?) gr. North Fork cup points; and the 500 gr. Bridger flat nose solids as they all shot to the same POI. I couldn't tell any difference in killing power but recoil changed dramatically and pressures were extremely mild, it was a wonderful pussy cat at 2100 FPS.

Thanks gentlemen! eezridr, I look forward to your results.

Just returned from a session at the bench with the Lott. Ambient temp was in the high 70's -low 80's.
The rifle ; CZ 550 23" barrel, open sights
Oehler 35; screens set 10' from the muzzle

1) 450 Swift; Hornady Brass; Fed 215M; 86 gr AA2520; 3 rounds fired'
Hi; 2418
Lo; 2412
Avg; 2415

Cases were easily extracted. No visual indications of high pressure. This was the max load listed on line for a 500gr Hornady Soft.

2) 500 Hornady Interlock; Hornady Brass; Fed 215M,
86 gr of AA 2520
4 rounds fired

Hi; 2352
Lo; 2340
Avg; 2346

This load will get your attention! Extraction was easy and again, no visual signs of high pressure on the brass.
I would suggest that you add 10 FPS to these readings as that should approximate muzzle velocity.
This 500 gr load exceeded the data provided in the loading manual by about 50 FPS and my barrel is just 23". I am going to drop a couple of grains and try to get the velocity down to about 2300 FPS and tame the recoil a bit.
This lott will flat deliver the mail with this 500 gr load but recoil is stiff on the bench!

I did like the 450 swift load, recoil appeared quite a bit less.

I also fired some of the initial Hornady DGS solids that has a rounded nose profile (factory fodder)
4 shots

Hi 2249
Lo 2219
Avg 2233

This is about 40 FPS (avg) slower than the last batch of Hornady 500 gr DGS with the flat nosed profile.

EZ

eesridr,

THANK YOU SIR! That is exactly what I was looking for out of this post! I will have to give AA2520 a try it seems.

What is the powder compression on that load like?

No compaction with the 450 gr bullet; Perhaps a slight compaction with the 500; perhaps! These comments are with 86 gr of powder.

eezridr,

Thanks that is great. I hate compressed loads, particularly with ball powders. I am definitely going to give AA2520 a try.

Scott, Can you get IMR4320?