Forgive me if this is already out here. I found some info early on to get me started and now having developed a good load, I thought I would share what I have. Didn't see anything specifically devoted to the 225 ELD Match bullet. I'm interested in others' experiences so I'll share mine.
Rifle is a Rem 700 trued action, 31.25" Krieger SS match 4 groove, Varmint #17 contour, 1:10 twist, cut with a custom match reamer. It's bedded in a heavily modified HS Precision stock and is fitted with a Leupold LRP 8.5-25X50.
I'm using new Norma brass, Winchester mag primers (WLRM) and H1000 with the "new" 225gr ELD Match. This bullet is 1.65" long so the custom chamber/jump is cut to an overall length of 3.800 (ogive 3.030) and loaded to a max .300 CID magazine length of 3.75 (ogive 2.980). I know, .05 is A LOT of jump, I think hornady recommends somewhere between .015 and .025. so i was very skeptical. I started loading at 73.5 gr and went up in 1/2 gr increments to 78 gr. Norma brass has a lot more capacity than your average factory brass so it can be loaded hotter. I started seeing very slight pressure (extractor) marks at 77.5 gr and a little more pronounced at 78, but I achieved the best accuracy at 77 with no pressure signs. So here's what I ended up with... 77 gr of h1000 grouped at .37 MOA at 200 yds with a cloverleaf pattern (no significant vertical spread). Crono reads an average of 3020 fps and the strelok app seems to be pretty close for starting dope development. Hopefully someone will find this useful, please share anything you may have.
BS
Rifle is a Rem 700 trued action, 31.25" Krieger SS match 4 groove, Varmint #17 contour, 1:10 twist, cut with a custom match reamer. It's bedded in a heavily modified HS Precision stock and is fitted with a Leupold LRP 8.5-25X50.
I'm using new Norma brass, Winchester mag primers (WLRM) and H1000 with the "new" 225gr ELD Match. This bullet is 1.65" long so the custom chamber/jump is cut to an overall length of 3.800 (ogive 3.030) and loaded to a max .300 CID magazine length of 3.75 (ogive 2.980). I know, .05 is A LOT of jump, I think hornady recommends somewhere between .015 and .025. so i was very skeptical. I started loading at 73.5 gr and went up in 1/2 gr increments to 78 gr. Norma brass has a lot more capacity than your average factory brass so it can be loaded hotter. I started seeing very slight pressure (extractor) marks at 77.5 gr and a little more pronounced at 78, but I achieved the best accuracy at 77 with no pressure signs. So here's what I ended up with... 77 gr of h1000 grouped at .37 MOA at 200 yds with a cloverleaf pattern (no significant vertical spread). Crono reads an average of 3020 fps and the strelok app seems to be pretty close for starting dope development. Hopefully someone will find this useful, please share anything you may have.
BS
