I’ve always had a fondness for the 6mm Remington with my old experiences with it and the Swift in the prairie dog fields for long range shots . The Swift shot 55’s and the 6mm shot 75-85grns. The Swift has Barrel burning hassles,stretching/ trimming hassles, and obtaining enough of them hassles. The only problem with the 6mm Remington that I can see is finding a quantity of cases as I like everything else about it. The question is what choices do I have for replacement? One thought is the 243 BUT.. it’s unkind with barrels like the Swift so a better choice please . Another choice is the 6BR which would be great BUT.. it’s difficult to get it to work in a repeat which is a must (!) .
My question is what choices can you give me that , Function in a repeater , Don’t require lots of trimming , Are easily obtainable in quantity, and Would be suitable for distance shots (75-95 grainers?)
Your thoughts along w/twist and bullet choice/ wt. please.
GTL -
Howdy !
Until you mentioned a desire to stay away from brass " trimming ", I was going to suggest my wildcat
" DEEP 6 ".
Deep 6 chamber is cut by running a 6mm Remington reamer in " short ", for a nominal .466" base diam
Cae capacity is 51.2gr H2O. Compare to .243Win @ 54gr, 6mm Remington @ 55gr H2O.
51.2gr is a useful case capacity in 6mm calibre. DEEP 6 uses the same VLD-friendly neck lg that the 6mm Remington uses. This keeps the powder combustion " turbulence point " located inside the neck, which is great for barrel longevity.
The wildcat case is formed using 7 X 64 Brenneke as the parent brass. 7 X 64 is .308 bolt face compatible, " rimless "; and LR primed. I use Norma brass, and have had no troubles in obtaining new cases when desired.
My DEEP 6 rifle was chambered w/ a custom barrel using the method described above.
* I have often thought it might be possible to use an exisiting 6mm Remington barrel ( not shot out ), have the chamber shortened to .466" base diam; and have a few threads added to the outside of the barrel to allow mounting to the action. * The rifled portion of the barrel would not necessarily have to be shortened..... just the chamber. The likley candidates would be 6mm Remington M-700s, 40X's; and some
M-77 Rugers I believe..
Deep 6 cartirdges are loaded / re-loaded utilizing off-the-shelf 6mm Remington dies. They don't need to be custom.
So.... for a shooter already set-up for 6mm Remington, Deep 6 ( IMHO ) makes for a potential practical option. It certainly solves the brass issue. BUT..... it's a wildcat, and therefore some brass forming/trimming is of course required.
I shoot 6mm 95-107gr bullets in my 29" 1-8 SS Broughton 5-groove barrel, the 95 T-MK being my current got-to bullet for varmint / target work. I'm very happy with the performance capabilities DEEP 6 gives me.
With regards,
357Mag