Magnum primers and imr 4227

Riley1981

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So starting to reload for 44 mag haven't reloaded for it in years have a bunch of 240gr campro bullets coming, have lots of different powders that will work 2400, 296 and li'l gun but have 4 lbs of imr 4227 hodgdon website says to start with 22 gr, so that's what I'm gonna do but wondering if I need magnum primers.. Have about 6000 s&b lp non magnum and just don't want to buy more primers if I don't have too
 
You do. Manual and Hodgdon's website says you don't need magnum so I tried with normal primers and it was a complete fail. There was a lot of unburnt powder. Swtiched to magnum primers and it works just fine now.
 
FWIW I use magnum primers for everything I reload. Way more consistency all the way around. Adjust your loads accordingly.
 
Have you tried in 44 mag? And what primer did you end up using after?

Yes, I tried IMR4227 with both regular and magnum primers in 44magnum. 22.0 to 24.0grn in 0.2grn increment. Gun is a desert eagle, 6'' barrel. With a regular primer (CCI 300) it won't even cycle the gun even if I use the maximum load, and there's some unburnt powder. With a magnum primer (CCI 350), at maximum load, the gun cycles 100% of the time and the powder burns clean. It feels slightly less powerfull than H110, and without the fireball. Using the same bullets as you, campro 240grn.

I've made quite some experiment with that deagle, trying different powders and primers. Some powders need magnum primers (IMR4227 and H110 among others) and some others need regular primers (titegroup, Win231). Do not use a very fast powder such as titegroup with a magnum primer, it will create a pressure spike and propel the bullet without stabilizing it (I have no clue if the pressure spike is enough to be dangerous, and although I guess not, I won't test it again). And do not use a slow powder such as H110 with a regular primer, it will leave a quantity unburnt (how much will depend on many other factors, including bullet weight and crimping), which can ignite on subsequent shots or just make your gun dirty AF.

IMR4227 is slightly faster than H110, so it will go bang with a regular primer, but the result will generally s*ck.

To recap, in 44magnum:
H110/Win296, IMR4227: Use magnum primers.
titegroup, Win231, HS6, 700X, 800X: Use regular primers.

Which gun are you reloading for? Realoding for revolver or lever action rifle you can do pretty much anything, for a semi-auto there's a lot of stuff that will go bang but won't cycle the action.
 
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So far I've reloaded and fired around 10,000 rounds of .44mag through a 629 using IMR4227 powder from 21.5gr to 23.6gr with Campro 240gr TMJ's and non-magnum primers from Federal, Winchester, CCI, Remington and S&B. They all worked fine with zero misfires.
Just for laughs and because the only non-magnums primers I could find at the time were the uber spendy Remington, I've been trying some CCI 350 large pistol magnum primers with both IMR4227 and H-110 with the same 240gr Campro's. Only 350 rounds fired so far but no difference that I can notice other than being $20 a brick less than non-magnum Remington's. Same amount of unburned powder, same kind of performance.
 
Think I may load up 50 with non mag primers and see how it is have heard 4227 is bad for unbuttoned powder either way and need to use it up may load some up with 2400 Aswell in case the 4227 is too frustrating at the range
 
Riley, punctuation please. Makes it hard to read.

You'll love the 2400. Bigger and badder flames out the muzzle than even H110. On a revolver it's particularly spectacular with the big side wings of flame.

My own shooting with 4227 and regular primers has been fine. But I must admit I've not checked the bore for unburned powder. I'm going to load up a batch of regular and Magnum primed loads and give 'em a try for accuracy consistency and see if I notice a difference.
 
Think I may load up 50 with non mag primers and see how it is have heard 4227 is bad for unbuttoned powder either way and need to use it up may load some up with 2400 Aswell in case the 4227 is too frustrating at the range

It just seems to be a dirty powder no matter what. But I find it works well and it's only dirt after all.
 
Does anyone know if 19gr of 2400 would be ok to start at with the 240gr campro? Not new to reloading but the starting loads seem to be all over the place in my various manuals, rounds are going through a raging bull if that helps any
 
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