125 gn bullets ended up being 130 gn... am I in trouble?

[harbl_the_cat]

I was loading 9mm rounds for my G17 when I bought a bunch of Excel Premium cast lead bullets - thinking they were 125 gn bullets, I proceeded to load them (4.7 gn of Bullseye).

Midway through a batch of 50, I weighed one of the bullet and to my surprised, discovered they were actually 130 gn bullets.

Should I be worried? Is the batch I made moot, and should I go back to Wholesale and complain?

 

[zuke]

5 grain's could be the weight of the lube on them.

 

[nognog]

The Sierra reloading Data for Bullseye max charge for 130 grn FMJ not Lead is 4.4 grns for an OAL=1.135.

The Lyman book for Bullseye max charge for 130 grn FMJ not Lead is 4.5 grns, but the OAL=1.160.

If that was my reload... I'd fire it thru my G17. With +0.2 grains more I dont think it will blow your bbl. It will be a little bit snappy tho.

It's your call.... waste 50-rounds, which is worth a pocket change or fire it through your gun and hope it does not blow your barrel.

 

[Rudy H]

Shoot it outdoors in the cold.

Never use loading data from dissimilar bullets. Be careful not to blindly use OAL from a different style of bullet than you are loading.

If you are going to use loading data for a different bullet then make sure you are not reducing the case volume behind the bullet from the original.

 

[harbl_the_cat]

Thing is the bullets were cast lead SWC bullets (forgot to mention that).

http://www.alliantpowder.com/reload...gtypeid=1&weight=125&shellid=1014&bulletid=21

Says here for 125 gn lead, 4.9 gn is the max.

So for 130 gn lead, is 4.7 (or even 4.8) too much?

 

[John Y Cannuck]

You are walking the line, but I think it will be fine. {Geeze, poetry}
Bullseye being one of the fastest powders out there, it pays to be cautious. That in mind, many (Possibly not all) listed loads for it have a substantial safety margin.
I wouldn't use it as a standard load, but, as a one off I think you don't need to pull them.

 

[v65magnafan]

We're talking about grains. We're talking about fractions of grains. We're talking hundredths of inches. We're talking about target shooting in a hand-held production semi.

If you notice any difference at all, I'd be surprised. My guess is that the humidity of the air trapped with the powder would make just as much difference as a tenth of a grain of powder. But I'm not a chemist or a physicist.

I agree with John Y. The lawyers make sure that there's a substantial safety margin.