Checking the LoadMAP book from Midway, they give the cartridge overall length with the Rem. 115 grain fmj as being 1.150. Handy book, has loads for 17 different 115 grain bullets using 10 different powders for each bullet, plus the same type of info for everything from 88grain jhp to 147 grain. All total 57 different bullets and 19 different powders.
What powder are you going to use?