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Posted: 1/15/2014 5:23:59 PM EDT
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I just got a decent lot of once fired .223 IVI. Thinking about using it for precision loads in my 18" suppressed AR. Does anyone have experience with this brass? I'm wanting to use 77 gr Nossler bullets with Varget and Remington 7 1/2 primers. Am I going to run out of room in the case? Any issues with this plan? I'll be happy with 1 MOA groups. |
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I'm not that familiar with IVI brass, but if it is typical brass, it should do real well with the other components you mention.
The procedure for checking case internal volume isn't difficult. Scroll down about half way on the 223 page to find a table of typical H2O capacities for the listed brands of brass, then measure yours to see how it falls compared to these. If it isn't way off one end of the data, you should be able to develop a good load that will make you happy and be under 1" at 100 yards for a 10 shot string. http://www.accurateshooter.com/cartridge-guides/223rem/ Some typical competition loads are shown on this site under "reloading stuph" The 77 SMK at magazine length should give you an indication of where your Nosler will run with Varget. http://www.radomski.us/njhp/cart_tech.htm |
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Quoted: I just got a decent lot of once fired .223 IVI. Thinking about using it for precision loads in my 18" suppressed AR. Does anyone have experience with this brass? I'm wanting to use 77 gr Nossler bullets with Varget and Remington 7 1/2 primers. Am I going to run out of room in the case? Any issues with this plan? I'll be happy with 1 MOA groups. Just begin loading at the start load and work up, same as any other combo of components.
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Quoted:
Am I going to run out of room in the case, or will a full charge fit in there? I'm still missing the Varget part of this load, so I can't check myself yet. A full charge of Varget = 23.7gr with a 77gr bullet. You will not run out of room and a full charge will fit into the case. A full charge for the 55gr bullet is 27.5gr and that fits, so you should have no problem getting 23.7gr into the case. Fitting into the case is one thing, compression is another. Varget is a slow for cartridge powder in the 223. It takes a lot of powder to generate enough pressure for optimal performance. Almost all max loads with most all bullet weights even the 55gr will be compressed. It is just the nature of the powder and compressing it is Normal and in many instances Preferred. Compress away, it is perfectly safe and normal. Note the (C) followed by the max powder charge. Stands for compressed. Hodgdon would not list "Compressed" loads if it were not. http://data.hodgdon.com/cartridge_load.asp |
| I just loaded some 77gr Noslers over Varget in LC brass with CCI 41s for development, using Lyman 49th's data for 77gr HPBTs was a little crunching as I got near the top end no biggie. Haven't shot them yet, use published data, work up and watch for pressure, compressed is pretty normal with stick powders, if you start getting way up into the neck you're gonna have pressure issues so don't bother. |
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