Dusted off my Rem 700 chambered in 22-250 this week and got a scope mounted up. Figured it hadn't seen any use in quite some time and the sage rats are starting to come out. I decided to try something new just for fun and did some load development using the 52gr Amax. I loaded 4 series of 5 rounds each in Nosler cases, CCI 200 primers, all over 41gr H380. I then loaded each series with a different COAL and decided to see where my gun liked the bullet seated.
It would appear that I need to keep pushing them deeper. 2.480" COAL has the bullet into the lands. I loaded at 2.467, 2.456, 2.443, and 2.434 with the shortest of them proving the most accurate. I will load some more of those and maybe a few more seated deeper and see what happens. According to the Nosler reloading guide, these should be smoking along at around 3900fps. The data in the book is from a 24" barrel and mine wears a 26" barrel. Didn't bother chronographing these yet. Figured I'd see if I could find a combo that shot well first.
The FedEx driver dropped off a new bushing for my Wilson die for my 260 along with a 500ct box of Berger 140 hybrids today too....so next time out I'll be giving the new IMR 4451 a test in my 260 as well. I'm excited to see how that combo pans out!
It would appear that I need to keep pushing them deeper. 2.480" COAL has the bullet into the lands. I loaded at 2.467, 2.456, 2.443, and 2.434 with the shortest of them proving the most accurate. I will load some more of those and maybe a few more seated deeper and see what happens. According to the Nosler reloading guide, these should be smoking along at around 3900fps. The data in the book is from a 24" barrel and mine wears a 26" barrel. Didn't bother chronographing these yet. Figured I'd see if I could find a combo that shot well first.
The FedEx driver dropped off a new bushing for my Wilson die for my 260 along with a 500ct box of Berger 140 hybrids today too....so next time out I'll be giving the new IMR 4451 a test in my 260 as well. I'm excited to see how that combo pans out!
