H110, Magnum Primers Necessary?

[bluetopper]

Are magnum primers necessary in loadings of H110/W296?

I've been experimenting with the powder with standard primers, as that is all I have, and burnings seem to be complete and consistent. I only load H110 in max charges as I know not to download that particular powder. I think that may be the reason I've been having good results. Your thoughts and experience are welcomed.

 

[Waywatcher]

Probably not where you shoot!

Where I am, it was 35 degrees the other morning when I went shooting, and I personally wouldn't chance it.

 

[DM~]

I ALWAYS use mag. primers with my 44 mag./H-110 loads.

DM

 

[ljnowell]

Here in central/southern Illinois I have found that H110/W296 loads are find in the summer time in 90+ degree weather. However, when it gets cold the other months of the year, no. I have yet to see one fail to burn and squib, but i have seen them burn horribly in cold weather without a mag primer, to the point of unburned powder gumming up a revolver.

 

[ArchAngelCD]

As with the others I also live in a colder climate and use Magnum primers with W296/H110 W540/HS-6 and W571/HS-7. I don't bother to make anything with those powders and a standard primer because I never know when I'm going to shoot them. I highly suggest using Magnum primers with those powders, the results is just so much more acceptable.

 

[GaryL]

I may have some experience with both extremes, although I don't recall the coldest I've shot a 44mag with H110. Could have been 20* or -20*. We seldom get the 110*-115* heat index temps you'll routinely see in Texas, but from the heat and humidity of summer, to snow on the ground, Wincester WLP primers have performed flawlessly.

Land of 10,000 lakes, and 20,000 swamps. We get humid.

 

[winchester1886]

As far as I know all manual state using a Mag.Primer for H110 &W296 I have always used a Mag primer with ether one. If you don't want to use a mag primer use 2400 or Acc#9.

 

[gamestalker]

I've tried using standard primer's with H110 and 296 back when components were scarce and they didn't work very well. I had unburned powder and still burning powder all over the place and pressure's were noticably higher. I'm just guessing, but I think the reason pressures went up is because the powder burn was inefficient, which I think simulated an under charge, which isn't recomended with those powder's because it can cause higher and unpredictable pressure spike's.
I load exclusively with H110 and 296 for all my magnum revolver's because I really like the magnum performance. Because it is such a slow burning wheel gun powder loading with it is not a maticulous process. A tenth of a grain plus or minus doesn't produce a noticable difference. So loading in the middle of the listed data gives me plenty of working room.

 

[ljnowell]

I may have some experience with both extremes, although I don't recall the coldest I've shot a 44mag with H110. Could have been 20* or -20*. We seldom get the 110*-115* heat index temps you'll routinely see in Texas, but from the heat and humidity of summer, to snow on the ground, Wincester WLP primers have performed flawlessly.

Land of 10,000 lakes, and 20,000 swamps. We get humid.

I believe the WLP are rated as a magnum primer, arent they? All of them that I have bought say "for standard or magnum loads" or something along that line.

 

[NCsmitty]

Absolutely, magnum primers with all ball powders for me, especially using W296/H110.
If you work up the loads with magnum primers, then you can shoot in cold weather, hot weather without worry about ignition.
Magnum primers do not make your ammo into hand grenades, but they do give you more consistent ignition with harder to ignite powders.
It's not like magnum primers cost more, so what's the problem?



NCsmitty

 

[gamestalker]

Regarding the WLP primer's, actually WLPM. Last week I loaded up some wLPM with the same middle of the road H110 data and the pressures were extremely high in comparrison to CCI-550 with the same load. So I'm guesing that WLP may be enough for a magnum application?

 

[GaryL]

I believe the WLP are rated as a magnum primer, arent they? All of them that I have bought say "for standard or magnum loads" or something along that line.

You are correct, sir. They have worked fine for me, but I did keep the loads in the recommended range. I also noticed at time that the loads closer to max worked that best when there was snow on the ground. Last fall I ran them over a Chrony (a moderately cool day, not cold), and saw that a mid+ range 2400 load was within 100fps of the full house H110 load. So I figure the H110 will find duty elsewhere.

 

[murf]

they are not necessary, but highly recommended by me and the reloading books (i am not an authority). as posted above, you will probably have ignition issues in colder weather.

murf

 

[41 Mag]

Parisite,

I have been loading everything from my 357's through my 454 with 296 for years, and I always have used the WIN-WLP primer for these loads. I have shot when it was, well you know how hot it gets in mid Aug. and Sep. down to the low teens and not had any issues with any of them. While I did not chrono them during the extremes, I did work the loads up in summer between Jul and Sept. I figure that if they will work well then, everything else is a cake walk. Besides we only get "low temps" what a couple weeks out of the year?

YMMV

 

[Sport45]

I believe the WLP are rated as a magnum primer, arent they? All of them that I have bought say "for standard or magnum loads" or something along that line.

Same here. The Winchester WLP is a magnum primer.

 

[CraigC]

Yes. Standard primers may go bang but velocities will be erratic. Test it with a chronograph and look at your spreads.

Last week I loaded up some wLPM with the same middle of the road H110 data and the pressures were extremely high in comparrison to CCI-550 with the same load.

You have pressure testing equipment?

 

[Clark]

I use the Win WLP for 44 mag, 45auto rim, or 45Colt with H110.



I use the WSPM for 357 mag H110.

My limited testing does not show any great advantage from primers, but wimp H110 loads in 45Colt are sensitive to crimping. They want the roll crimp deep into the bullet cannelure.

 

[highlander 5]

In a nutshell if the reloading manual says us a magnum primer use it.

 

[Zane]

I made a few 9x25 Dillon cartridges using CCI 300 primers and W296 before I got my CCI 350. The ones made with the 300s wouldn't cycle the gun while the ones with the 350s would, with less powder. I assume I was getting incomplete ignition.

 

[trapper500]

H-110 Mag Primers Nessary

I always us Magnum Primers when loading The H-110 powder follow the directions in you manual & you will be good to go