I'll start by saying I'm NOT a 7mil fan, but couldn't resist helping a friend. In secret I bought a 7-08rem AR 22" barrel, then there couldn't be just 1 in that caliber so I bought a 7saum AR barrel. however I'm a 26cal fan with 5 (including my latest cartridge) have a 6.5gren, 6.5creed, 260rem, and 264wm (my dad's pre64 '61 model) then toped it off with a 6.5prc AR (all but the 264wm is in AR platforms). With my decisions based on what was available is the reasons for the 7saum and 6.5prc instead of 6.5wsm, 6.5gap4s and 7wsm. I wasn't going to waste time on waiting for components to become in stock, so that's what I ended up with. Both are untested and still need to be adjusted and finalized before firing. It took 6 months for the go/no-go's to arrive, but were ordered at the same time the barrels were. After finding out about LaRue 308mags having a longer internal dimension for up to 2.870"ish length and then learning about KAC mags (Knights) having even more room would help even more. Haven't found any KAC mags in stock as they are $20 per higher than LaRue's @ $92.2
(2 in pic)
L) 6.5prc 22" 8T +2 gas modified hbar
R) 7-08rem 22" 9T lightweight
Right Pic) 7saum 28" 8T +2 gas socom heavy spiral fluted
The prc was built for up to 135gr bullets with the exception of 144gr Lapua @ 2.830". The 7-08 will be for 150's and lighter. 7saum will max out with 180's, but might try 190a-tips with the LaRue mags? The biggest hurtle will be getting time for load development.
(2 in pic)
L) 6.5prc 22" 8T +2 gas modified hbar
R) 7-08rem 22" 9T lightweight
Right Pic) 7saum 28" 8T +2 gas socom heavy spiral fluted
The prc was built for up to 135gr bullets with the exception of 144gr Lapua @ 2.830". The 7-08 will be for 150's and lighter. 7saum will max out with 180's, but might try 190a-tips with the LaRue mags? The biggest hurtle will be getting time for load development.