40 S&W Berry' round nose hollow back

[scuby2usa]

I am loading 155gr Berry's round nose hollow back with TG or Bulls eye. I have used 180gr round nose with 4.3gr of TG with good results. Any suggestions for the 155gr rnhb?

 

[Engineer1911]

Accurate No. 2
155 (P) BERRY HBRN 5.0 gr 953 fps 5.9 gr 1,112 fps 34,987 psi 1.125 inch
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180 (P) BERRY HP 4.0 gr 823 fps 4.8 gr 920fps 34,565 psi 1.125 inch

Accurate No 5​

155 (P) BERRY HBRN 7.0 gr 975 fps 8.2 gr 1,139 fps 34,996 psi 1.125 inch

This is from Accurate Arms current online data. Check a powder burn rate chart [#7]Bullseye, [#8] Tite Group, [#16] Accurate Arms No. 2 .