troy fairweather
Member
Wish I had the money, it's nice just having the brass around even if not needed. Gunwerks has onefired brass for pretty cheap. I want some 6.5prc when I get the money, can't beat $45/100 for adg brass.
Shooting same poa is a good sign, it's very close to the rifle build I have in my head. Mine would be a 7 mm tho. Hope one day to have the money to build one.@troy fairweather, thanks ... I think it'll be great with the two handloads that I'm planning on working up. Lapua brass, GM210M primers and Varget powder. I've found that it shoots just about everything to the same point of aim with factory ammunition ranging from 150gr to 175gr. I'm hoping that the A-MAX and LRX loads have similar velocity and similar poa/poi.
troy fairweather said:Did you chrono any of the loads yet, does the can add any fps.
I cant say too much about low temp, but not much change between 70 and +100. I switched from 748 to cfe223 exclusively.How temp sensitive is cfe223?
Casefull said:RL 15 gives me about 100fps over varget. I can’t say whether it’s more or less accurate than varget. I have a couple of 308 Kimber hunting rifles. I use Winchester brass because it’s thinner and allows an extra grain of powder . What is the balance like with the suppressor attached? I have wanted to try a suppressor on my mountain ascent as it has a threaded barrel. You have a nice rifle there.
LoonWulf said:Ive never seen any temp issues with cfe223, but i have with some of the rl series and 748. Again not usually an issue, but leaving rounds laying on the bench can get them pretty hot.
Yeah cant say anything in regards to the swing the other way. I dont think ive noticed that much of a swing but my normal usage range is much narrower as you know lol.I'm more concerned with going from 60°F to -10°F than the other way since load development for me is typically spring and early summer with hunting in the winter.
Regarding CFE223, a member on another forum who seems to shoot a lot and keep good notes saw a 2 fps/1°F increase in velocity when the temperature ranged from 62°F to 92°F. He was shooting a .223 Rem. A video test at -51°F and 79°F saw a 1 fps/1°F velocity change, also a .223 Rem. I found a chart from an unknown source listing the temperature sensitivity of CFE223 to be 1.7 fps/1°F. This is far from conclusive but the general feeling I'm getting is that CFE223 is definitely more temperature sensitive than Varget. I'll do some more digging but I'm inclined to start with Varget and see what I get for velocity. If I can get 2,650 fps with the LRX I'll be content I think.