Desperately trying to finish a big lot of brass so ass to do load workup with 69 rmr's before temps drop too far. 85 deg was once recommended as minimum temp if one doesn't want to break his gun when shooting same load in upper 90's. Opinions? Powder in hand cfe223, but welcome recommends for any others (including aa2230, blc2, Match Rifle, AR Plus, 4895, 335, etc?). I do find my accuracy nodes typically well off of published max, butt...

Thanks