Dangerous undersize loads???

59banger

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i just got some .44 mag cartridges from a guy loaded with 4.0 grns of Unique for a 240 grn bullet, Hornadays loading manual says 8.0 grains minimum. could firing these undersize loads be dangerous in any way??? thanks
 
Unique is unique in that it works well at high and low pressure. It is not a dangerous load, but it is very mild. Just make sure the bullets don't get stuck in barrel. It is a bit milder that the start laod for a 44 Spl.
 
Yeap, watch for bullets bounce off back stop and back at you... we had a guy who's bullets bounced off rubber back stops back up range.
 
Personally I won't shoot handloads from some else unless I saw them being produced. I'd pull the bullets and reload them myself . Just my 2 cents
 
This problem of bouncing bullets could be severe if the bullet jacket is copper jacketed or electroplated to a soft lead core.
These are much harder than lead & tend to ricochette/bounce more, than deform or mushroom like a softer cast lead bullet would.
But as Ganderite stated, you first & foremost, have a high chance of bullet stuck in barrel.
This could be at worst downright dangerous if missed, to just a really embarassing & expensive mistake.
 
I ran it through Quickload - the predicted velocity is 562 fps, but the charge is so light it's outside of accurate predictability for the software. Case is only 30% full which might give you problems as already noted by SandRoad.

Powder doesn't burn efficiently at low pressure - Quickload predicts that the powder would not entirely burn in a 6 inch barrel. Unburned powder residue will foul your barrel quickly and could be more liable to make a bullet stick in the barrel, especially if you are using jacketed bullets.
 
On Hodgdon Cowboy action loads for Pistol & carbine the starting load for 240 gr lead swc is 6.5 grain of unique with max of 7.6
So 4 grain is too low even for lead bullet, you may end up with stuck bullets as others have mentioned.
 
I load my light bullseye loads at 6.5 grains. I would be using closer to that if I were you. It has about the same POI as my full power 2400 loads at 10 yards. You may as well just go get a .22 with that load! Whats the point of having a .44 mag if it doesnt go bang. I got sick of hearing poof while ago.
 
The subtle point in the above posts, is it really depends if the bullets are jacketed or cast. If they are jacketed bullets you should not shoot them as loaded, as the possibility of sticking a bullet in the barrel is very high. If they are cast bullets (lower friction), then the possibility is lower, but is still a possibility. I wouldn't shoot them rapid fire, as you would want to check the barrel (or target) after every shot to make sure the bullet left the barrel.
I would probably pull the bullets, use them again, and either discard the powder, or increase the load up to 6 grain. Don't throw the powder into a can with other powder. You will end up a few cartridges short in the end to load up with something else.
If you do stick a bullet, search the threads for all the tips on how to get the bullet out without damaging the barrel.
 
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