[justashooter]

you have screwed the pooch, my friend. the action is now soft as butter, and the barrel is in question depending upon what temperature it acheived. you may as well take the acetylene torch you used to heat them and cut the receiver into peices so someone doesn't try to build on it and have a catastrophic failure. the barrel should be cut up to the point at which it acheived 600* F.

military bolt action rifles like K98, springfield, and arisaka that were made from 1890 to 1945 typically used a 1035-1090 steel (medium to high carbon), and were heat treated during manufacture to get high strength material properties that allowed the use of less steel in making and ensured that threads could be made on small scale, etc.

the heat treating process typically involved heating the semi-final machined part to about 1655*F to enlarge the grain structure of the steel in the interest of hardness, oil quenching to freeze the enlarged grain state, then re-heating to 400-600*F to allow some of the enlarged grains to refine to smaller grain state. this increases the grain boundary area while retaining a portion of large grain structure, upon which balance tensile strength is dependent, and by which brittleness is eliminated.

by heating the part to temps above the original temper (400-600*, usually), you have re-tempered and allowed more grain refinement, changing the balance of small/large grain ratio and making the steel more ductile (softer). if you have heated above 1655*F (bright orange) you have re-austenised the steel. allowing re-austenised steel to air cool will give you variable hardness depending upon part thickness variation, but will always result in steel that is much softer than an appropriate normalise/quench/temper cycle.

you have thrown away 40% of the material strength of the critical area of the action, for sure. you have prolly damaged the barrel beyond use, unless you just wanted to cut off a section in front of the chamber to rechamber to another purpose (example: mauser 71 bbl'd actions converted to 45/70 or 45 ACP application).

trust me on this. it's what i get paid to know. you don't want somebody to get killed over a piece of steel. destroy the receiver. next time get an appropriate action wrench block, a set of barrel vises, and a long piece of pipe.