Paulbunyon
Member
Reloading guru's, I took the plunge and stared working with Gordon's Reloading Tool a few months back with some good results just double checking book loads and getting comfortable with the software. I've recently acquired some Hammer Hunter (124gr) and HHT (122gr) bullets in .277 for my 270 winchester and while I understand it's not an optimum powder, I've got a surplus of Hodgdon 335 that I'd like to try for some loads with these little guys. This is the first time I'm running completely off book with GRT and the numbers I'm getting seem suspiciously high. The closest H335 data for 270win I can find on LoadData is for 110gr bullets running a max of 45.0 grains at just under 3100fps. GRT is suggesting I can run the 122 HHT's up to 50.0 grains with the results below. If possible, I'd rather not run a ladder starting at 40.0 if it is actually reasonable that a max load is around 50, but I obviously also don't want to cause a detonation on the firing line. Can I get a second look from QuickLoads or someone more experienced on GRT than me to take a look? FWIW, I'm running Hornady brass on second firing. Case length and volume are as measured below. Thanks!