From Toad's 303rd Bomb Group link... A brief sample of missions.
303rd BG (H) Combat Mission No. 161
27 May 1944
Target: Railroad marshalling yards, Mannheim, Germany
Crews Dispatched 37
Length of Mission: 6 hours, 45 minutes
Bomb Load: 10 x 500 lb G.P. A.N. M-64 bombs
Bombing Altitudes: Group A - 25,000 ft; Group B - 23,900 ft
303rd BG (H) Combat Mission No. 187
21 June 1944
City Area, Berlin, Germany
Crews Dispatched: 43
Crews Lost: Lt. Allen, Lt. Way & Lt. Morningstar
Crew Members Lost or Wounded: 5 crewmen were wounded
Length of Mission: 8 hours, 25 minutes
Bomb Load: 8 x 500 lb M17 Incendiary bombs
Bombing Altitudes: 28,400 ft; 27,000 ft & 25,900 ft
303rd BG (H) Combat Mission No. 194
29 June 1944
Target: Erla Aircraft Components Factory, Heiterblick, Germany
Crews Dispatched: 36
Crews Lost: Lt. Roy, 8 KIA, 1 POW
Length of Mission: 7 hours, 55 minutes
Bomb Load: 10 x 500 lb G.P. M43 bombs
Bombing Altitudes: Group A - 25,000 ft; Group B - 24,000 ft
303rd BG (H) Combat Mission No. 197
6 July 1944
Target: V-Weapon Sites "No Ball" Target,
Beaumetz-Les-Aires, France
Crews Dispatched: 38
Length of Mission: 4 hours, 25 minutes
Bomb Load: 12 x 500 lb G.P. M43 bombs
Bombing Altitudes: 26,000, 25,100 & 24,500 ft
303rd BG (H) Combat Mission No. 201
11 July 1944
Target: City area, Munich, Germany
Crews Dispatched: 38
Length of Mission: 8 hours, 50 minutes
Bomb Load: 18 X 250 lb M57 bombs
Bombing Altitudes: Group A - 27,500 ft; Group B - 25,300 ft
303rd BG (H) Combat Mission No. 213
28 July 1944
Target: Leuna Synthetic Oil Plant, Merseburg, Germany
Crews Dispatched: 37
Length of Mission: 7 hours, 50 minutes
Bomb Load: 10 x 500 lb M43 bombs
Bombing Altitudes: 26,200, 25,200 & 24,200 ft
303rd BG (H) Combat Mission No. 206
18 July 1944
Target: Experimental V-Rocket Station, Peenemunde, Germany
Crews Dispatched: 39
Length of Mission: 8 hours, 40 minutes
Bomb Load: 10 x 500 lb G.P. M43 bombs
Bombing Altitudes: Group A - 25,100 ft; Group B - 23,300 ft
303rd BG (H) Combat Mission No. 208
20 July 1944
Target: Junkers Flugzeug Motorwerke, Dessau, Germany
Crews Dispatched: 37
Crew Members Killed or Wounded: 2 crewmembers wounded
Length of Mission: 8 hours, 45 minutes
Bomb Load: 10 x 500 lb G.P. & 38 x 100 lb M47 Incendiary bombs
Bombing Altitudes: 26,000, 25,000 & 24,000 ft
Seems to support my statement that the bombers will generally be at 25,000 feet, with the escorts 2,000 to 5,000 feet higher.
If the Luftwaffe is going to engage the bombers, they will have to climb to at least 25k, probably higher.
My regards,
Widewing