PR 337 propellant of PB Clermont S.A. (Belgium)


#1

I am trying to find out if the Belgian company PB Clermont S.A. is making a propellant designated “PR 337” (suitable for 7.62x51 NATO ball M80).
I can not find it on their website and wonder if it is them making it and if so if the “PR 337” could be a specil customer’s designation.
Who can help?

pbclermont.be/home


#2

Alex,
in a PRB flyer I downloaded in 2008 a propellant PRC337 for 7.62 NATO is listed among others for this cartridge. I will send it to you.


#3

I was a bit too quick, the designation is PBC337, not PR… Anyhow, I very much doubt they used number 337 twice.


#4

Alex,

I also only found the PBC337 propellant in my docs:

loosely translated as “Propulsion powder PBC337 type WC846, used for 7,62x57 munition , double based-spherical powder”


#5

JPeelen and Orpheus, thanks a lot!

I have to add now thet the propellant lot was given on a PPU (Serbia) 7.62x51 load and the propellant type was listed as “PR 337” with the lot of “PBC”.
Here I assume now that the “PBC” was omitted in the propellant designation and replaced by the Serbian abbreviation “PR” for “прах” (English: powder).


#6

Interesting!
I recently purchased a packet of .308 Win manufactured by PPU in Serbia. This box shows “SP 9,7 g”, presumably the powder load.

Cheers

John


#7

John, the propellant data should be in the lower right corner of the label.
Could you show it maybe to make sure?


#8

Not a good photo but see data in top RH corner.

John


#9

John, I am afraid SP simply refers to a soft point bullet of 9.7 grams/150grains.


#10

Completely outside my field, so thank you for your enlightenment.

Cheers

John


#11

John, I agree with JPeelen.
I actually meant military style labeling which is follwoing a pattern for decades since Yugoslav times.
Your’s here is a commercial product which seldomly refers to the propellant used.


#12

Alex, I observed this powder used in lots 0901-02 and 0901-03 made in 2009 (headstamp PPU 09 7,62x51). Also, all boxes I have seen have a Beschussamt Suhl label added. Have you seen any other boxes?


#13

Fede, I have seen the 0901-02 but none of the cartridges.
Have you seen later production with “MBL” propellant lots again?
I assume they had a larger order and MBL was short or the customer required that particular propellant. Wish I knew more.


#14

Alex, the following 7.62x51 box of which I have pictures is lot 0902-03, but I’m afraid that it has a commercial production label and the powder type is not indicated.

However, the use of Belgian PBC powder also occurred with 5.56x45 cartridges made as early as 2008 (lot 0809-04), and in this case I can confirm that it was used during 2009 (0902-07) but not longer used in lot 1001-01 made in 2010. In short, PBC844 was loaded in 2008-09 (M855) and SB510 was loaded in 2010 (M193), at least in the lots I have observed.

Regards,

Fede

Edit: I just noted that the use of PBC844 actually continued during 2010, but only in M855 loads (lot 1003-03).


#15

Fede, thanks! Was MBL maybe down in 2008-2009?


#16

Alex, as this started to be quite complicated I checked every single lot and this is the result:

5.56x45 M193:

  • Powder SB510 or SB511 at least from lot 0604-06 (2006) until 0803-04 (2008).

  • Powder PBC844 in lot 0808-03 (2008).

  • Powder PR844 in lot 0808-09 (2008).

  • Powder SB510 at least from lot 0902-06 (2009) until 1101-01 (2011).

  • Powder type is no longer specified at least from lot 1202-04 (2012) until current.

5.56x45 M855:

  • Powder SB511 at least from lot 0708-04 (2007) until 0805-02 (2008).

  • Powder PR844 from lot 0809-04 (2008) until 1003-07 (2010).

  • Powder “for 5,56 x 45 mm” in lot 1102-02 (2011).

  • Powder type is no longer specified at least from lot 1201-03 (2012) until current.

I hope this helps.

Regards,

Fede

Edit: Now PBC844 and PR844 are differentiated.


#17

Seems there is definately some change in the whole propellant supply of PPU then.


#18

[quote]I have to add now thet the propellant lot was given on a PPU (Serbia) 7.62x51 load and the propellant type was listed as “PR 337” with the lot of “PBC”.
Here I assume now that the “PBC” was omitted in the propellant designation and replaced by the Serbian abbreviation “PR” for “прах” (English: powder).[/quote]

Alex, I noted that the designation “PR844” instead of “PBC844” is also found in CBC boxes for 5.56x45 and 7.62x51 cartridges, which would mean that this was actually a different powder model and for this reason the Serbian language abbreviation would be purely coincidental. According to PPU labels the change from PRB844 to PR844 happened during 2008, but CBC was already using PR844 since the early 2000’s.


#19

Fede, well observed! So we can exclude a Serbo-Croat abbreviation.