.460 load data

[IntoForever]

I just began loading for the .460 and found a recipe for 360 gn. projectiles that calls for IMR 4198 however I'm unable to find 360 gn. projectiles. I do have a few boxes of hollow point in 300 gn. and would like to know if anyone has a recipe for IMR 4190 for this. I'd like to find something for this powder and also the .452/360 gn. projectiles.
My google-fu must suck as I am unable to find anything on this. My .460 has a 8" barrel. Any help either way would be much appreciated!

[Dark Mod]

Any reason why your married to 4198? If load data is difficult to come by, it probably means the powder isnt popular for that round.

I always thought of 4198 as more of a rifle powder, the IMR website lists it as a small bore rifle powder for varminters.

Then i looked around and saw that there are some loads for the .460, but its by no means very popular. I started to wonder why, and came to conclusion it must serve some niche that other powders dont.

Why limit yourself to such an oddball powder when there are truly magnificent powders like H110 that really open up the .460, or powders like titegroup that will make a superb powderpuff load. There is an endless supply of data for all bullet weights for the more popular powders.

[ft4olsc]

I was searching the same thing yesterday and came accross this site. Looks like H110 is the way to go. Seems like it will work with a lot of different loads.

http://handloads.com/loaddata/default.asp?Caliber=460%20SqqqW%20Magnum&Weight=All&type

[IntoForever]

I've loaded up H110 and love it, even more since the other shooters all stopped and watched the fireballs. I'm after the IMR recipe because I have several lbs. of it vs. 2 lbs. of H110. I use the H110 and WIN 296 in my .357 and .44 magnum.

[Whiterabbit]

at 360 if you are shooting a 1 in 20 gun with a short cylinder, I suggest H110. I prefer 4198 myself, but my barrel is longer, twist is faster, and I can tolerate a slower powder.

That being said, I NEVER use 4198 for light bullets, and I consider 300 grain light for the 460 (that is personal opinion, the market does not agree with me). 300 grains demands slow pistol powder, not fast rifle powder. Roundabouts 42 grains is right for H110.

The problem is that the 460 case is really just too big for an 8 inch barrel (this is also personal opinion). That demands you use the fastest powder you can get away with without over pressuring. Fortunately you've got lots of pressure leeway with the 460 cartridge.

You need 360 grain bullets? Try cast performance. You don't have to stop at 360 either. In the X-frame you are only limited by cylinder length. It's just too short to use the real heavies. 4198 is actually the evidence there. Look at the hodgdon data. Max loads are all compressed, OAL just fits the cylinder. Pressures not close to 65ksi. so for real havies, should be able to follow the pattern. Just that the bullets are gonna get coughed out the barrel.

By the way, if you are into cheap shooting for the 460 but want some heavies, browse ebay and your gun shows for 45/70 bullet molds. use cheap lee push through sizers to get them to 452 and you are gtg. in the right gun (X-frame is too small) you can shoot heavier bullets than the 500 S&W can.

[em9sredbeam]

I use H110 for mine. No problems at all. I have been using Hornady 200gr and 225 gr. for bullets. I am using an 8 3/8" XVR

[Whiterabbit]

up to 405 grains:

https://beartoothbullets.com/bulletselect/index.htm

up to 345:

http://www.montanabulletworks.com/45_Colt.html

Start with this:

http://cliffsgunsmithing.com/Cat_BC4570.htm

Add this:

http://www.midwayusa.com/product/116429/lee-bullet-lube-and-size-kit-452-diameter

And you are at 520 grains. Bear creek is a CA local too.



Wish you were a local to me. I'd trade bullets for your 4198.

[Bongos]

460 S&W Mag = 44gr of 296 240gr xtp-mag

Make sure you use XTP-MAG or the bullet will come apart

[Whiterabbit]

I just began loading for the .460 and found a recipe for 360 gn. projectiles that calls for IMR 4198 however I'm unable to find 360 gn. projectiles. I do have a few boxes of hollow point in 300 gn. and would like to know if anyone has a recipe for IMR 4190 for this. I'd like to find something for this powder and also the .452/360 gn. projectiles.
My google-fu must suck as I am unable to find anything on this. My .460 has a 8" barrel. Any help either way would be much appreciated!

Funny how I'd just been casting up bullets similar to this.



These are cast for another member here for the express purpose of shooting through an X-frame. lead alloy with tin antimony and arsenic, cast raging hot and quenched into water. They are HARD. New lube that will hopefully not be smoky. The ultimate goal is to shoot them indoors without smoke or spit lead out of the annoying X-frame brake.

Of course I can cast these in just about any alloy up to dead soft and my BFR eats them up. Much more forgiving.

These are my "go-to" bullet. My load is 30 grains of IMR4198 for speeds roundabouts 1350 fps (X-frames shoot these CONSIDERABLY slower than my long throat BFR). For the X-frame, especially given the hard alloy, methinks they will need to be shot to max velocity, which will be the goal. (the bullet is just too long IMO for the 1 in 20 twist of the X-frame). 30 grains IMR4198 is a *****cat load of low pressure compared to what the 460 cartridge can tolerate. It just provides an accuracy node in the BFR with the 16 inch twist barrel.

To be perfectly honest, I could use some help developing 100 yard loads for this bullet for the X-frame. Anyone willing to send me a few pounds of lead, I'd be happy to cast some up, lube, and return in exchange for load data that works at a minimum of 50 yards using IMR4198, H110, or AA#9 (#9 in particular interests me for this bullet in the X-frame). Would have to be WW or better, and you have to use my lube, but a few load developers has to be better than just one.

[ruggyh]

Cast Performance offers a 360 grain GC bullet

IMR 4198 is a poor choice, ballistic performance is 26%

Performance data generated with quick load as follows.

COL 2.190"

IMR 4198 start load at 34.0 and max at 37.0 which will be compressed- max load 1538fps

other choices H4198 start 34.0 max 40.0 also compressed- 1644 fps

H4227 start 31.0 max 35.5- 1767 fps

H110 start 35 max 38 1836 fps

Lil Gun start 36.0 max 40.0 1882 fps

use at your risk and be safe

I actually have some Bear tooth bullets I plan on testing in the near future and will update every one, Powder going to use are VIT N110. H110, Lil Gun, IMR4227, IMR 4759 and 2400. Other I would consider are 4100, A9, and 2400

I had good success with Lil'Gun with the Barnes 325 Buster I used earlier this year on Bison Hunt with a 7.5" barrel- though H110 and N110 work very well also.

[Whiterabbit]

Hi Ruggy,

Very much interested in what 26% means. Does it simply mean that the bullet speed is less than what it could be? Does it mean only 26% of the powder is burned before the bullet exits the barrel? Does it mean that, as Hodgdon states, that even a case full of powder yields far less than max saami pressure?

What is 26%? is ANYTHING less than 100% always undesirable?

I may have some questions about quickloads data if you could run some numbers for me for particular bullet combinations. I've been curious at what point chamber pressure reaches 65ksi using IMR4198 with particular weight bullets (I can supply details). As you know, I'm not limited to a COAL of 2.3"

[ruggyh]

This is quickload calc.
My understanding is it is calc. based on potential vs. performed

It is not just a measure of how much powder is burnt- in the case of IMR 4198 it says around 74%

The highest peak pressure does not always equate to the highest velocity- in this case Lil'Gun has a higher velocity but the pressure is lower than that of H110

I wish I could get their exact calculation so I could have a better understanding of it meaning.

Next time you come over we can look at the various metrics performed with the tool.

[Whiterabbit]

it's a date. I'll bring the bullets and micrometer.

One must wonder what knobs contribute to the potential. If IMR4198 and a 360 grain bullet are a 26% recommended combo, what increases that performance percentage? (assuming there are no limits of reality). Increasing OAL (thus decreasing fill density)? Increasing powder charge? Increasing both charge AND OAL (to maintain the same fill density)? Increasing barrel length? A change of bullet characteristics (heavier, lighter, more bearing surface, less, bearing material, etc etc etc etc)?

And of course the big one we already discussed, why should we care about such an obviously low ballistic performance? If it's accurate at the distances we want, has the terminal performance we desire, and does it in a way that can't be duplicated with a 454 casull or other similar but more efficient cartridge, then shouldn't we disregard ballistic performance percentages? Or should we?

If we are to judge loads using that metric, it seems like we should have a keen understanding of that that metric means!

[IntoForever]

Thanks to all with info. I've been working on various recipes and have had great success with the IMR on 300 gn. projectiles. One learning curve was to not shoot 45LC with lead projectiles through it and then fire the maxed out .460's with H110 as the residue destroys the brass.

[ruggyh]

Suggest

If you have 460 brass just load the bullets in the 460 brass instead of 45colt brass the

Accuracy will be much better
And you dont have to worry about cleaning the cylinder if you deside to chamber a standard 460 round

Acase full of trailboss drives a 250 grain piece of lead about 1200 fps lead with no recoil

lead with out Gas check above 1400 is going to lead the barrel

Take and be safe