I read the OP, then went to Midways website,
I seached for 55gr Barnes, took 2 seconds.
I searched for H4350 powder, took 2 seconds.
I then searched for 165 gr Sierra, took 2 seconds.
That thing called the search box, try it once.
Likewise here, I've never had any problem with Midway's website. It's one of the easiest to navigate of the many I frequent.