OOPS....9mm 115gr all OAL 1.085 :(

CRAZYLOCH

CRAZYLOCH

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OK So i just did a batch and noticed it all a bit too short. its all 1.085 in length. (stupid me)

So it is safe to shoot?


All Berry 115gr RN, 4.7gr of Unique (its undercharge for a softer load), CCI 500 small primer, in 1F federal and American eagle case.

It is lower than the 1.120min OAL recommended by LEE, for this batch acurracy is no longer even considered, but i really don't want to have to pull the whole batch (100 rds)

My question to my fellow more experienced reloaders...is it safe to shoot or do i NEED to pull... :( ? (I mean the min load according to Lee manual is 5.0gr of Unique. These are all 4.7gr.)
 
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while you are asking for more experienced reloaders i will still offer my opinion.

i see no reason why that would affect the safety with regards to an explosion/blowing up your gun. the only thing that might happen is feeding issues.
 
Spawn-Inc said:
while you are asking for more experienced reloaders i will still offer my opinion.

i see no reason why that would affect the safety with regards to an explosion/blowing up your gun. the only thing that might happen is feeding issues.
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Well actually...OAL effects case volume which effects pressure. To short an OAL can cause excessive pressure.

I won't offer an opinion to the OP because I'm not familiar with his load or that powder...
 
If it were me, I'd pull them. .035 deeper doesn't sound like much, and it isn't in something bigger like a .45 ACP. But that same distance setback in 9mm consumes a much greater percentage of total case volume in an already high pressure rounds in comparison. 9mm isn't very forgiving that way. You might be increasing pressure approximately 5000 psi and nearly 200fps according to a rough estimate looking at the graph in the VihtaVuori 3rd edition manual.

I think everyone does an oopsy at one point in this hobby and ends up pulling a bunch of rounds. It helps teach us the importance of periodically checking our measurements - OAL and powder weight being the most important.
 
I think you will have a tough time finding someone to say those rounds are OK to shoot. No one wants to be responsible for an incident. All I can suggest is looking at different reloading data. Sometimes the very on minimum OAL a bit. I personally would fire a couple and look for excessive pressure signs, but I would never suggest you do the same. :)
 
CRAZYLOCH said:
OK So i just did a batch and noticed it all a bit too short. its all 1.085 in length. (stupid me)

So it is safe to shoot?


All Berry 115gr RN, 4.7gr of Unique (its undercharge for a softer load), CCI 500 small primer, in 1F federal and American eagle case.

It is lower than the 1.120min OAL recommended by LEE, for this batch acurracy is no longer even considered, but i really don't want to have to pull the whole batch (100 rds)

My question to my fellow more experienced reloaders...is it safe to shoot or do i NEED to pull... :( ? (I mean the min load according to Lee manual is 5.0gr of Unique. These are all 4.7gr.)
Click to expand...

It depends on what bullet type that lee listed, if the same is round nose, then you are sat too deep, but you have .3 gr below the min, the pressure won't be too high, I will try it because a lot of modern gun can take +P loads.

Trigun
 
You need to get someone with a load program that can tell you the approximate pressure that that round will produce.

The SAAMI pressure limit for the 9x19mm Parabellum is set at 35,001 psi.
The SAAMI pressure limit for the 9x19 mm Parabellum +P is set at 38,500 psi.

If it is within those pressure limits I would shoot it. If not I would prolly not.
 
Trigun said:
It depends on what bullet type that lee listed, if the same is round nose, then you are sat too deep, but you have .3 gr below the min, the pressure won't be too high, I will try it because a lot of modern gun can take +P loads.
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I have the Lee manual here, and I can't find any data for Unique and plated copper @ 115 grains. For jacketed 115, the starting is 5.1 to a max of only 5.5. But as I understand, Berry's should be considered cast or alloy if no plated data is stated.

So, lets turn to the Layman 49th then. Here #2 alloy 120 grains has a start load of 4.0 Unique with a maximum load of 5.0 grains. We should note that the OAL here is only 1.065".

According to the Lyman manual, your loads are definitely not starting loads, but also not quite maximum either. It's probably somewhere in the middle of the range.

So the real lesson learned today is why we own more than one reloading manual ;)
 
It's too bad none of the books i have give the projectile OAL. That little piece of info would be so handy. Some RN's are almost wad cutters the way they round out right away and some taper up before they transition to a RN. I have 2 different lead 124gr. RN bullets from different manufacturers and they measure 0.020" difference. Plus different reloading manuals can have data that is different from each other. Maybe not a lot, but enough to make you wonder. I guess that's why we start on the low end of the powder weight.
 
They are Jacketed Bullets RN 115gr, .531 length

Hmm, I do have a kinetic hammer, maybe i will do that, a couple of wack and re-seat the bullet. :D


Skyhawk said:
I have the Lee manual here, and I can't find any data for Unique and plated copper @ 115 grains. For jacketed 115, the starting is 5.1 to a max of only 5.5. But as I understand, Berry's should be considered cast or alloy if no plated data is stated.

So, lets turn to the Layman 49th then. Here #2 alloy 120 grains has a start load of 4.0 Unique with a maximum load of 5.0 grains. We should note that the OAL here is only 1.065".

According to the Lyman manual, your loads are definitely not starting loads, but also not quite maximum either. It's probably somewhere in the middle of the range.

So the real lesson learned today is why we own more than one reloading manual ;)
Click to expand...
 
quickload is telling me 20872 psi at 1.169 OAL, 29043 psi aT 1.085 OAL, with maX CHAMBER PRESSURE (9MM luger Saami spec) at 35000, 38500 for 9mm+P. Aside from the possible feeding issues, you should be safe to fire these rounds. If it ws me, i'd pull them, because they'd be pointles to shoot...it's not like you're going to purposely make more :)
 
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