[j-nsp] SRX550HM max BGP routes in FIB?

[Tadej]

Hi,
does anybody use SRX550 or SRX550HM as BGP router with full IPv4/IPv6 
routing table?
SRX550 is older model with 2GB RAM, running Junos 12.1, SRX550HM is 
current model with 4GB RAM and 8GB CF card, running Junos15.1.

The datasheet 
(https://www.juniper.net/assets/us/en/local/pdf/datasheets/1000281-en.pdf) 
states any of these two hardware versions can eat 712K BGP routes at 
maximum. Currently full BGP table contains 728K IPv4 routes + 55K IPv6 
routes.

I would speculate that at least newer "HM" version can manage much more 
than just 712K routes.
How many routes can the box really squeeze into its FIB?

Best regards, Tadej