[bkeeper]

Please forgive me for not being up to speed on this topic, but can someone direct me to any information which compares ballistics of the 6.8 SPC to the 7.62X39. These two rounds have similar weight bullets and I'd like to see how they proform against each other.

I'm trying to determine which conversion I going to order.

 

[gunner69]

bkeeper, I have read the comparisons SOMEWHERE, but can't remember where. The 6.8 SPC IS superior to the 7.62x39 hands down and would be the superior hunting round. However, if you will primarly use the selected caliber as a "plinking" round the 7.62x39 is a better choice. Cheaper AMMO!!! And yes the AK round is O.K. to 200meters as a deer rifle. I shoot both calibers, keep in mind unless you reload or have deep pockets the 6.8 SPC will cost you. Hope this helps. In the mean time I will look for the article I read. :2cents:

 

[Martens]

I wondered the same thing and ran the specs of each through a ballistic calculator. Both were assumed to have a 50 yard zero which is what I use.

At 100 yards the 7.62 was 1.14 inches high (1142 ft lbs) and the 6.8 1.44 inches (1217 ft lbs). At 200 the 7.62 was 3.1 inches low (897 ft lbs) and the 6.8 was 1.17 inches low (962ft lbs). At 300 yards the 7.62 was 18 inches low (697 ft lbs) and the 6.8 was 12.66 inches low (754 ft lbs). I only ran the numbers to 300 yards as this is the distance I felt either cartridge would fit my needs. I have a .308 DPMS for farther than this.

Both are fairly close and if I plan to shoot either a lot, I would go with the 7.62. If I don't plan to shoot much, then the 6.8 is better ballistically and would be much easier for me to get approved at work.

Factor in 6.5 to the conversation and I still haven't made a choice. I really want a conversion by the end of the year but have to define mine needs before I can decide. I really think the 6.5 may be the best choice as it has the best ballistics, wolf ammo for more affordable shooting, and pretty much equals the .308 out to 500 yards which is the max I could see for deer hunting around here. For work it will easily do everything that the .308 would do.

The best for me would probably be to get rid of my .308 and by a second XCR in 6.5. I would have the exact same manual of arms and a precision rig in a smaller package with less recoil.

 

[gunner69]

Well done Martins......... I could not have did that better myself. I have the 6.5 on order myself. Only trouble with the 6.5/6.8 choice is cost of ammo. I reload but srill components are high too. Wish Wolf would make 6.8 SPC. :toast:

 

[Aussie Arms]

Just give me a 7.62 x 39 kit for my light (maybe a complete upper?), and bring on the XCR-M in 308 nato and I will be a happy man!

 

[badman400]

Just give me a 7.62 x 39 kit for my light (maybe a complete upper?), and bring on the XCR-M in 308 nato and I will be a happy man!

+1 8)

 

[SigsRule]

Appropos of nothing in particular, has anybody (besides me that is) thought about the fact that the same .30 caliber screw on silencer (a SWC Omega is tapped for 5/8x24tpi) would fit both the 7.62x39 XCR and a FAL? To carry it one step further, I also have a 300 Weatherby with the same threaded barrel for a muzzle brake and a 7mm08 on an Encore that could be threaded for it.

While I would be intrigued by the 6.5 for longer distance coverage over my 5.56 XCR, I already have a FAL so I chose to go with the 7.62x39 conversion, primarily because of cheaper ammo.

 

[gunner69]

If I didn't reload, I would not have even considered the 6.5 or 6.8. Ammo just costs too much for the amount I shoot. If you want to hunt with a 7.62x39 there is plenty of hunting rounds available. Think 30-30, read 200, as about the most distance it will do the job. I try to limit the round to 100 meters. Works great if you know and respect its limitations. :2cents:

 

[Damien]

Appropos of nothing in particular, has anybody (besides me that is) thought about the fact that the same .30 caliber screw on silencer (a SWC Omega is tapped for 5/8x24tpi) would fit both the 7.62x39 XCR and a FAL? To carry it one step further, I also have a 300 Weatherby with the same threaded barrel for a muzzle brake and a 7mm08 on an Encore that could be threaded for it.

While I would be intrigued by the 6.5 for longer distance coverage over my 5.56 XCR, I already have a FAL so I chose to go with the 7.62x39 conversion, primarily because of cheaper ammo.

I'm in to where you are at. I have a 30 cal can on order and will be using it on a 223 AR and XCR, a 6.5 XCR, a 30 cal XCR, an AK and a FAL. The gemtech 308 can is good up to 300 Win Mag.

 

[aziator]

If I didn't reload, I would not have even considered the 6.5 or 6.8. Ammo just costs too much for the amount I shoot. If you want to hunt with a 7.62x39 there is plenty of hunting rounds available. Think 30-30, read 200, as about the most distance it will do the job. I try to limit the round to 100 meters. Works great if you know and respect its limitations. :2cents:

I am in your boat. I bought 6.8 because it is being used some in the military. I am hoping that it will start trickling down the chain to other units. From what I have heard it does quite well for our operators. I think I figured that after the initial cost of purchasing brass it will cost me around $0.20 per round to reload. I have never shot wolf ammo nor do I intend to start. If I can spend money on ammo I can usually spend the same amount on components and reload more of it.

Next time I am at the range I will see if someone is shooting a x39 and see if they want to shoot it through my chrono. I know you can go here for more info on the 6.8 and why SOCOM choose it over everything else.

http://www.demigod.org/~zak/firearms/6.8SPC/

I would have been out hog hunting this weekend with my 6.8 but my twins coming changed all that...