460 load data

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PeterK

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Hey guys! I'm working out of state, and just ordered a new 460 with 7.5" barrel that should arrive when I get back in town this Thursday. I ordered some dies and 240 grain CUP bullets, now I'm wondering if anyone has some moderate load data to use with 2400? This is the only powder that I'm sure I have at home when I get there. Looking to make some loads to get use to the gun, and will probably pick up some other powder when I get back to town, just don't know what I'll be able to find. I appreciate the help!

Peter
 
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Alliant manual shows 31.0 gr as max for 250gr Speer GDHP; 45 Colt load for same weight is 15.4 gr - so any load in that range (15.4-31) should technically work. Also standard disclaimer applies - do your due diligence to double check yada yada.
 
Make sure your bullets are rated for the speed and pressure you intend to use them at. Typical .451-.452 bullets meant for 45 ACP and such are not suited for 460 use at 460 pressures and velocities even what would be moderate loads.

If you will provide actual bullet information I will provide you starting load information for 2400.

be safe
Ruggy
 
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iouri said:
Alliant manual shows 31.0 gr as max for 250gr Speer GDHP; 45 Colt load for same weight is 15.4 gr - so any load in that range (15.4-31) should technically work. Also standard disclaimer applies - do your due diligence to double check yada yada.
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That is very bad advice!


A 460 and a 45 Colt are not the same cartridge and the load data for each is totally different.


Your "range" is not correct!
 
Rule3 said:
That is very bad advice!


A 460 and a 45 Colt are not the same cartridge and the load data for each is totally different.


Your "range" is not correct!
Click to expand...



I’m aware they are different cartridges, 460 shoots fine everything from 45 schofield to 460 with 45lc and 454 casull inbetween. Might be not optimal small charge in bigger case but I don’t see danger in it.

Edited to clarify: I was looking at it as using 38SP data in 357Mag case.

Sent from my iPhone using Tapatalk
 
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ruggyh said:
Make sure your bullets are rated for the speed and pressure you intend to use them at. Typical .451-.452 bullets meant for 45 ACP and such are not suited for 460 use at 460 pressures and velocities even what would be moderate loads.

If you will provide actual bullet information I will provide you starting load information for 2400.


be safe
Ruggy
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I'm sorry, I thought I had that. I will be using the Hornady 240 grain XTP MAG bullets designed for the 460. I know that they typically 45 acp bullet wont hold up, but I do appreciate the warning!

Peter
 
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Alliant 2400 data for a 250gr GDHP is maxed at 26gr for a 454 Casull. As another person mentioned, it's 31grs for the same bullet in a S&W 460.

It may be a little dirty with 26gr but it would be a good start charge. The 240gr XTP Magnum bullet shank may be different than than 250gr GDHP. I do know the 250gr GDHP seats deeper than a 250gr XTP with the .45 Colt.
 
Pete--- You might want to look at Speer #12 or 14 Loading Manuals.

They both have reduced loads in 460S&W. Also an old trick some loaders

use in reduced loads is some type of filler to reduce the voids in bigger ctgs.

This is/was used when subbing smokeless for black powder. Notably in 45-70..

btw... ruggy is the ''460 guru''.. l have followed his advice for years on my 460 PC
 
iouri said:
I’m aware they are different cartridges, 460 shoots fine everything from 45 schofield to 460 with 45lc and 454 casull inbetween. Might be not optimal small charge in bigger case but I don’t see danger in it.

Edited to clarify: I was looking at it as using 38SP data in 357Mag case.

Sent from my iPhone using Tapatalk
Click to expand...


There is no "analogy" between the 38 special/357 mag and the 45 colt and 460 magnum

Just look at the difference in length.

Between the 38 and 357 there is 3.7 mm in length difference
between the 45 colt and 460 mag there is 13.4mm

You can not just guess or extrapolate a minimum charge anymore than a maximum charge

Ballistics are based on many many thing, especially case volume.

How much load data have you seen with a 15.0 grain variance between min and max data??
Some SW 460mags have a very long 8" barrel will and tiny charge of a very slow powder make it out the end of the barrel.


The OP needs to look at some manuals or Alliants load data, not get it from a forum.
 
The best advise given here is to buy a loading book and do your own research. Getting reloading recipes from an Internet forum may very well work out but in this case, the information provider did you no favor. Developing your own loads for your gun and your needs is part of the joy of owning your gun. If you are too busy and don’t have time, buy factory ammo.
 
With 240 XTP MAG using 2400 and bullet crimped in cannelure start at 80% case fill or 33.4 grains and work up. 37.4 grains will be typical commercial type load.

Guys don't use 45 colt data in 460 case, with most jacketed bullets you may experience squib loads.

be safe
Ruggy
 
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I appreciate the info Ruggy! Like I said in my opening post, I'm working outta town, and will be in town for a short time. I do have manuals, and I have sent and email to Allient powders, still waiting to hear back just looking for some direction. I appreciate all the help guys.

Peter
 
I will add it here again for those new to reloading the 460.

Extraction is the best guide to operating under the the design pressure of this cartridge.

Do your load development with clean chambers and extraction should never be sticky unless you are near over pressure condition.

The max load data you see printed is not an absolute but a guide line. The tolerances of firearms vary widely. I have several 460s with tight throats and max loads are 2 full grains lower (depending on powder) than the average in my collection.

Always work your way up.

be safe and good luck
Ruggy
 
ruggyh said:
I will add it here again for those new to reloading the 460.

Extraction is the best guide to operating under the the design pressure of this cartridge.

Do your load development with clean chambers and extraction should never be sticky unless you are near over pressure condition.

The max load data you see printed is not an absolute but a guide line. The tolerances of firearms vary widely. I have several 460s with tight throats and max loads are 2 full grains lower (depending on powder) than the average in my collection.

Always work your way up.

be safe and good luck
Ruggy
Click to expand...


^^^More words of wisdom from Ruggy, coulda been me that wrote that......

I too stop and back off when I get sticky extraction(sometimes doesn't take much of a charge increase to go from cases falling out, to having to drive them out with a dowel), and my P.C. Compensated Hunter has tight throats, so most of my max loads are more "middle of the road" according to the books. Even many commercial reloaders backed off a tad since the inception of the .460 to ease with extraction. While max pressure is 65,000 psi, most load to about 56,000.
 
Quick question. A new 460 reloader is having problems with ftf light strikes using rifle magnum primers. He said that his reloading books specify those, yet all factory ammo fires normally. Springs tensions etc all checked, problem is only on reloaded 460 ammo using large magnum rifle primers. He is worried about trying to use large pistol primers in a 460.
Bottom line, which primers should he be using??
tia
 
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The 460 uses Large rifle primers
The problem will be worse with pistol primers as they will be seated deeper

For some reason it is not uncommon for those new to the cartridge fail to seat the primers completely.

Does it light strike with factory ammo?
Does it light strike in SA, DA or both?
Do they fire when struck a second/third time?

Winchester WLR primers produce best results with most powder in this cartridge per my personal testing.

be safe and good luck
Ruggy
 
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460 lite primer strikes

First off , my Hornady book calls for large rifle primers. My Lyman book calls for large rifle,magnum primers.

I use a haornady hand primer and seat primers as far in as this tool will go . There is no adjustment, it goes in all the way.

My revolver is the 460xvr in 5”, factory ammo shoots fine , all my reloads are loaded only 1 grain above minimum, and when I get a lite strike I back up the cylinder and fire again and the cartridge goes off.

I’ve tried cci, Winchester, and just today federal primers , I’ve tried large rifle and large rifle magnum primers , and as of now am still getting lite strikes both in single and double action .
I’ve contacted S&W after holding for 30 min that basically will do nothing as long as it works with factory ammo.
The S&W rep I talked to said sure go ahead and try magnum pistol primers ! But I do not think that is a good odea because of the high pressure .

My local smith recommends getting a longer firing pin , I’m watching ting on a new release from apex tactical that is suppose to be a beefier, slightly longer firing pin designed for this heavier gun/cartridge the X frame.

I’m quite disappointed with this fire arm, I have 2 mod 29 and a mod 629, and reload all my 44 mags , theses 3 pistols have no issue with setting off the large rifle magnum primers !
 
Romick33 said:
My revolver is the 460xvr in 5”, factory ammo shoots fine , all my reloads are loaded only 1 grain above minimum, and when I get a lite strike I back up the cylinder and fire again and the cartridge goes off.

!
Click to expand...
99.5% of the time that means your primer is to high and not seated fully.


As mentioned LRP are all that is needed in a 460SW, Some like Hodgons say LR magnum, but they used a mag primer in anything labeled magnum regardless of the powder.


Magnum primers are bit thicker, in the 460 the difference in "spark" is not gonna mater as far as pressure,


If it fires factory ammo, something is not right with the hand loads.
 
ruggyh said:
I have several 460s with tight throats and max loads are 2 full grains lower (depending on powder) than the average in my collection.
Ruggy
Click to expand...

What do you consider a tight throat to be on a .460? I just got a new 8 & 3/8" model and a .452 minus gauge is a very tight fit in each hole. .453 won't go into any of the holes. I'm assuming this is a good size and hopefully will be able to get some good groups with .452 lead bullets traveling around 1500 FPS.
 
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