Cabela’s has them if you can’t find them elsewhere.
Cabelas within 250 miles from here do not. 😢. BUT, I was looking in my stash of SPS bags of bullets and I found two bags of 200 grain partitions. 😊
The ‘06 with JB’s load is very accurate and I’ll be doing more testing. But now I’m looking at my 300 H&H - it hasn’t had a hunting trip yet…