Yet another AR cartridge

[Angel Eyes]

Wilson Combat has introduced AR rifles in .300 HAM'R

https://www.youtube.com/watch?v=ykftHBCSneg

They claim it has the same ballistics as .30-30 (more powerful than .300 BLK) and uses a 5.56 BCG and magazine.

Not sure if the new round sufficiently differentiates itself from other AR-related chamberings to find a market niche.

[bedlamite]

Basically a modified 7.62x40 from Wilson Combat based on the 5.56 case. It's a longer 300BO intended for use with 100-130gr bullets, no subs. It comes close to the 30-30 if you load the really light bullets, but can't compete with 150-170 gr 30-30.

[charby]

Yawn

[Strings]

I can see the AR platform (with all it's varied calibers) becoming a collectors dream/nightmare 100 years from now...

[HankB]

From a purely ballistic standpoint, this round - like many other oddball cartridges - seems pretty good.

But I never was a big fan of proprietary cartridges, including (especially?) those which offer marginal increases in performance over existing cartridges. (And of course, there's plenty of opportunity to debate the meaning of "marginal" in this context.)

I'd be interested in seeing a chart listing the differences in case capacity between the .300 Blackout/Whisper, the .300 HAM'R, and the 7.62x39. An old rule of thumb is that velocity increases at about 1/4 the rate of case capacity - increases beyond that probably entail increases in pressure as well.

[RoadKingLarry]

When an AR gets chambered for the .22 Eargasplitten Loudenboomer I'll consider something besides 5.56.

http://military.wikia.com/wiki/.22_Eargesplitten_Loudenboomer

[lupinus]

There is also that with newer offerings in 223 with better tailored bullet construction, it's being being perfectly capable in it's own right to do a number of jobs we've wanted better rounds for.

Deer and hog come to mind, with offerings on the market tailored to the task that make it perfectly capable for those jobs. Sure you can always get more power/range. But when I can now get perfectly capable factory loadings of 223 for deer hunting, it makes trying to find a new sweet spot round every five minutes that much less interesting.

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[230RN]

Let me know when someone comes up with a cartridge/barrel combination for the AR15 platform that "approaches" .416 Rigby ballistics and feeds from the magazine.

It's a varmint platform for a varmint cartridge and if you want more, that's why there's the AR10.

The amount of tinkering and fussing and fidgeting the U.S military has done to boost the original .223 Remington-ish ballistics (M193) is positively embarrassing.

As the saying goes, you can't make a whole pig out of a sow's ear.  Or it's something like that.

But don't let me stop you from trying.

Terry

[bedlamite]

Let me know when someone comes up with a cartridge/barrel combination for the AR15 platform that "approaches" .416 Rigby ballistics and feeds from the magazine.

It's a varmint platform for a varmint cartridge and if you want more, that's why there's the AR10.

The amount of tinkering and fussing and fidgeting the U.S military has done to boost the original .223 Remington-ish ballistics (M193) is positively embarrassing.

As the saying goes, you can't make a whole pig out of a sow's ear.  Or it goes something like that.

Terry

The Rigby is overkill for everything on this continent with the possible exception of costal grizzly. Asking that much from a 6 pound rifle is unnecessary and stupid. The AR15 is an effective medium game deer/hog hunting rifle with the 6.8spc, and a decent medium range target rifle with the 6.5 grendel.

[MechAg94]

The Rigby is overkill for everything on this continent with the possible exception of costal grizzly. Asking that much from a 6 pound rifle is unnecessary and stupid. The AR15 is an effective medium game deer/hog hunting rifle with the 6.8spc, and a decent medium range target rifle with the 6.5 grendel.

Agreed.  

Also, the new round gives you a little more power than the 300 Blackout while sacrificing the subsonic capability.  The subsonic capability is the only reason I am keeping the one 300 Blackout rifle I have.  If you are going supersonic full time, I think there are choices in the AR platform that are just as good (like 223) for killing hogs and such.  

Hell, my boss has shot a handful of hogs in his yard with 22 LR and all the ones he hit died pretty quickly.

[230RN]