Sierra Data vs Hodgdon

N

Nipigon Jack

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I'm new to reloading and looking at 2 different manuals for 9mm.
I'm loading 124 gr. Campro with Winchester 231 powder
The closest bullet listed in the Sierra manual lists a 125 grain bullet, starting load at 3.9 gr. with 5.1 grains as maximum
The new Hodgdon 2013 manual lists a 124 grain grain bullet with startng load of 3.9 but a max of 4.4 gr.

So I loaded 10 of each 3.9, 4.1, 4.3, 4.5,4.7, 4.9, 5.1.
Am I on the right track, or should I not even consider shooting anything over the 4.4 max listed in the Hodgdon manual?
Is Hodgdon just being lawyer safe?
Is the 125 grain bullet listed in the Sierra manual very different than the 124 grain Campro and is able to handle the additional powder?

HELP PLEASE !!!!
 
The campro's are plated right? Typically people stick with the low to med charges with plated bullets, treating them kinda like very clean lead bullets. The plating is thin.

I like them for IPSC .40 minor loads. I don't know how far you should push them, they are not really the right kind of bullet for max loads.
 
I called Campro (MetoPlus) to see if the had load information and was asked to send an Email. Well what great customer service, I had a response within the hour.

You can use load data for JSP or TMJ because our bullet is copper plated with 0.008 inch thick copper coating.Hence at high speed the copper coating does not disintegrate. This is not the case with the majority of our competitors as they use thinner film coating (usually around 0.003 inch thick).

However, we can suggest the use of the following loads:

40 S&W 180 TC used with Winchester 231: The Minimum Load is 4.1 grains and the Maximum Load is 5.1 grains. The Length is 1.130 and Taper Crimp is .420

Have a great weekend.


Patrick
Technical officer
 
callum said:
I thought you were loading 9mm? Why did he give you data for 40 S&W?
Click to expand...

Sorry.
Yes loading both 9mm ad 40S&W
I bought the Dillon 650 months ago and can't wait to run some rounds out of it tomorrow. First I'll run some trial loads out of the Beretta 9mm and Glock 35, 40S&W
Once I have these loads down pat, I'll have to buy a conversion kit and dies for 44mag
 
Ah - that makes more sense, I was hoping you weren't going to mix up load values for 9mm. Good luck, I am still waiting on my press coming in the mail... darn American shortages!
 
Usually data varies from one book to the other due to several factors, the testing equipment could be the bigger reason and altitude, primer, lot of powder, exact bullet could be the others.

If I have two manuals and one says 10-15gr max and another 9-14.3gr max I chalk this up to the differences in their methods and I imagine if I only had bought the book with the higher data I would have happily used it, thus I do.
 
I typically start at the low end and go up in .1 grain intervals and see how they group. I stop when I see no improvement in grouping and ofcourse keep within recommended range. That way you get the best bang for the amount of powder.
 
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