460 s&w

[RDWalker]

I recently got a new 460 s&w and due to lack of ammo for it I'll be reloading. I've reloaded rifle ammo for 20+ years but never pistol. I could only find H110 powder and from looking at load data from hogdon and hornady one says use large rifle primers and one says to use large rifle magnum primers. I have large rifle but no large rifle magnum and can't find them anywhere.

So my question is am I safe to use large rifle primers or do I need to continue to look for large rifle magnums.

 

[BW460]

I would not do that with H110. It needs a magnum primer to light it up consistently.

 

[Obturation]

Personally I'd want the magnum primers , primarily due to pressure. I'm sure the standard large rifle primers can light a case full of h110 but it's going to generate some pretty high pressure. H110 isn't a powder suitable for downloading, it's minimum to maximum charge weights are only going to be a grain or 2 difference and depending on the bullet I'd take a guess that you'll be in the 50,000 psi range.
I could see the possibility of pierced primers but there's only one way to find out.

I don't have any experience with 460 magnum but I shoot a lot of its little brother, 454 casull . the pressures are very similar and I will admit to using standard small rifle primers at times but never with h110. If you had a powder you could download into the 35k psi range of say it would work just fine. I think its going to come down to how hard the specific primer you're using is , not weather or not you get good ignition could be wrong though.

If it were me and couldn't get magnum primers, I'd try it. Maybe you can trade for some?

 

[Airborne Falcon]

With H110 I'd have to probably say use the magnums.

If you had other choices you might get away with regular LRPs.

If you live near me I can probably help you out with the MLPPs or MLRPs.

 

[BW460]

Is that the only powder you have? Trailboss, Unique, Universal, Power Pistol, 2400, can be used with a standard primer. No 9 and IMR 4227 can be used but I would probably use a mag primer with those two also. There are a few others. As noted above, do not download H110.

 

[Airborne Falcon]

Is that the only powder you have? Trailboss, Unique, Universal, Power Pistol, 2400, can be used with a standard primer. No 9 and IMR 4227 can be used but I would probably use a mag primer with those two also. There are a few others. As noted above, do not download H110.

I'm not sure about .... well, let me rephrase that. I never used Trailboss, Universal, Power Pistol or 2400 when reloading 460 S&W.

I did use 296, H110, N110, Lil Gun and 1680 .... all but one of those I always used Mag LPPs. Hornady says you can use WLR over 34-37 grains of H110 ... I always used the MLPP because I failed to pay attention to the primers until about 100 rounds in and by then that Smithy had beat my wrist up so bad I sold it to a young man young enough to be my grandson ... he hunts pigs with it now. I've still got a box of 300 XTP MAG .452s sitting in my pill cabinet.

I see we all agreed, were all answering, at the same time above.

Magnum primers are pretty important, imho, with 460 S&W.

 

[n2omike]

I was testing some 300 Blackout 220 grain subsonic loads using H110. I inadvertantly primed the cases with small PISTOL primers. I caught it as soon as I had primed them, but figured they would be fine for subsonic loads in what is basically a pistol cartridge... and they were.

As for chrono results... The H110 did NOT like being loaded to low pressure. Large spread in velocity in the subsonic range, but even with the small pistol primers, the velocity tightened right up and accuracy was great once they went into the supersonic range.

As far as the performance of H110 is concerned, I think it's FAR more important to load it pretty hot... than it is to use a Magnum primer. Magnum primers will not work as a crutch to make Magnum powders shoot well in low power loads.

Just my experience and $0.02

 

[BW460]

"I'm not sure about .... well, let me rephrase that. I never used Trailboss, Universal, Power Pistol or 2400 when reloading 460 S&W."

Well, I have used all of those powders plus 1680 and I am sure. Not all loads have to generate 2100 feet per second in the 460 s&w mag.

 

[Obturation]

Op- what brand primers you working with?

 

[BW460]

It's not just a matter of loading H110 "hot". Do not download it more than 3% below max load. There are safety reasons for that.

H110 is hard to light up, you need the Mag primer. A standard primer might work but it might also give you a squib load.

 

[earlthegoat2]

I use small rifle primers for loading 450 Bushmaster with H110.

Works pretty good and is in every load book that publishes 450 BM data.

Why the need for a magnum primer in 460? Because of more pressure?

 

[Blue68f100]

Most of my hand loading with W296/H110 has been with 357mag and 458 SOCOM. Have no need ofr one of those hand cannons, particularly with bad wrists and arthritic hands. With these they use a Mag Pistol primer. Now I would suspect a std rifle primer to be a close equivalent in primer compound. Now if you shooting these in cold temp <40F you may have problems, this is where the mag has a bigger advantage. Like said earlier don't reduce reduce more than 3% from max. This powder likes to be run full tilt.

 

[buck460XVR]

With the large case capacity and the heavy crimp needed to keep your bullets from jumping under recoil, you will be fine. Follow recipes, even Hodgdon distributor of H110/W296 has published start loads lower than 3% of max(10% actually with 300 gr), that are safe. If brass start to become hard to extract.....back down, but do not go below min.

 

[sparkyv]

I've used both std and mag LRP in my 460S&W loads with H110. Works just fine. I prefer Winchester as they say their primers are for std or mag loads.

You won't find a better powder for the 460S&W:

I could only find H110 powder

 

[Airborne Falcon]

I have used all of those powders plus 1680 and I am sure. Not all loads have to generate 2100 feet per second in the 460 s&w mag.

I acquiesce to your 460 knowledge ... I even agree with you that nothing has to be any particular way - it's about which simulation is running in the matrix at the time and which universe we're a part of. Oh, and also, I've just never loaded those - which is probably why I quit shooting the darn thing.

 

[Obturation]

I prefer Winchester as they say their primers are for std or mag loads.

I don't know if that's still the case, I have winchester primers labeled standard and magnum. See-


I can't say they aren't the same thing but I can't see the point of labeling them differently if they aren't different.

I've heard that other places too but never seen any win primers not specify standard or magnum.

 

[cfullgraf]

Rifle primers are hotter than pistol primers. For full power loads in the 460 S&W Mag, most of the data I’ve seen used rifle primers.

W296/H110 is a good powder in the 460 S&W Mag but follow what the published data says.

Full power loads, even reloads, get expensive in my 460XVR. Obviously, one can shoot 45 Colt in the 460 but I prefer to use full 460 cases for my plinking loads. Researching on line I found several sources that had good hot 45 Colt level loads in a 460 case.

 

[RDWalker]

Thank you everyone for the replies and info. I think I'll load a small batch with the regular large rifle primers that i have and shoot them through the chronograph and see what I come up with.

 

[Obturation]

Thank you everyone for the replies and info. I think I'll load a small batch with the regular large rifle primers that i have and shoot them through the chronograph and see what I come up with.

What bullet are you using?

 

[RDWalker]

300 grain Hornady XTP mag

 

[Airborne Falcon]

300 grain Hornady XTP mag

I went through a bunch of those. You can really load those hot. One of the few bullets I ever water jug tested. I've still got a box or two of those up in the pill cabinet. H110 is great for that projectile in 460 S&W.

 

[thump_rrr]

I don't know if that's still the case, I have winchester primers labeled standard and magnum. See-
View attachment 1063648

I can't say they aren't the same thing but I can't see the point of labeling them differently if they aren't different.

I've heard that other places too but never seen any win primers not specify standard or magnum.

Back around 10 years ago a client of mine who sold his 1911 sold me 3,000 Winchester large pistol primers and they were marked like this.
I paid him $75.00 and he threw in 1,500 pieces of mixed .45ACP brass.

 

[Soonerpesek]

I prefer Winchester as they say their primers are for std or mag loads.

I have winchester primers labeled standard and magnum

Winchester large pistol primers and they were marked like this.

You guys are comparing 2 different primers.....
On Powder Valley's site:
Lg Pistol is STD or MAG
Lg Rifle is different...

 

[LaneP]

If we traded places and it were my decision to make, I would not hesitate to go to the starting charge with H110 and a standard LRP. Put it over a chrono if you have one and see what your average velocity and SD is.

 

[sparkyv]

You are correct, sirs. My bad.

You guys are comparing 2 different primers.....
On Powder Valley's site:
Lg Pistol is STD or MAG

I don't know if that's still the case, I have winchester primers labeled standard and magnum. See-

But I have used std and mag LRP successfully. BTW, I mistakenly loaded up 11 Blue Dot rounds using LPP primers and much to my surprise, the hammer had enough reach to set them off successfully. No need to do that again.