Hello Danthaman

I am new to this forum, while browsing, It was funny and interesting that I had bumped into your question here. I have a G20 myself (with a lonewolf aftermarket barrel) and just recently tried Autocomp with COAL's of 1.250 & 1.260.  I then choreographed my reloads. For me this combo seemed smooth and accurate on my G20. I'd be happy to share my data and results if it helps... but first my disclaimer :-)

CAUTION: The loads or load data I disclose/publish  may or may not be appropriate for your gun or for the cartridge(s) and components mentioned. Due to typos, variations in guns and components, and the abilities and judgement of users of this data, I assume no liability for damage or injury resulting from using this information. DO NOT ATTEMPT TO DUPLICATE THE DESCRIBED LOADS without first working them up from a published safe starting level charge while watching for pressure signs. If you don't know how to do that please don't use this data, for your own safety and the safety of others.



Firearm - G20/w Lonewolf aftermarket drop in barrel
Bullet - Hornady - 180gr FMJ-Flat Point
primer - CCI-300 Large Pistol
Case - Starline
Powder - Autocomp 7.7gr
COAL - 1.250

Crono'ed
1167.0     -5.1
1168.0     -4.1
1163.0     -9.1
1189.0     16.9
1167.0     -5.1
1186.0     13.9
1183.0     10.9
1161.0    -11.1
1164.0     -8.1
1173.0      0.9

       High:   1189.0
        Low:   1161.0
       E.S.:     28.0
       Ave.:   1172.1
       S.D.:      9.7
        95%:     ±7.7

Firearm - G20/w Lonewolf aftermarket drop in barrel
Bullet - Hornady - 180gr FMJ-Flat Point
primer - CCI-300 Large Pistol
Case - Starline
Powder - Autocomp 7.7gr
COAL - 1.260

1165.0     12.4
1114.0    -38.6
1153.0      0.4
1138.0    -14.6
1136.0    -16.6
1133.0    -19.6
1181.0     28.4
1117.0    -35.6
1158.0      5.4
1098.0    -54.6
1286.0    133.4 f

       High:   1286.0
        Low:   1098.0
       E.S.:    188.0
       Ave.:   1152.6
       S.D.:     48.0
        95%:    ±35.5

Hope this helps... thx