9mm rifle ammo.

If anyone has some solid testing info on various 9mm out of a carbine please point it out...

I would like to see tests of the Lehigh and Underwood fluted ammo out if a carbine

It seems to me, IMHO, that the difference between rifle and pistol ammo, in the broadest sense, is the burn rate of the powder. Now, it's been decades since I reloaded, but rifle powder was always slower burning so it would keep pushing the bullet forward on the expanding gas ball. Any powder still burning after the bullet exits the barrel would logically be of visual benefit only. This is my question with AR and AK pistols with barrels less than half the length of the carbine barreled brethren. Unless someone is reloading, the ammo they are using is for rifle use and would logically have a slower burning powder. Likewise, wouldn't 9mm (essentially pistol) ammo benefit from being loaded with rifle powder when used in a carbine?

Like I said, it's been decades since I was loading up Unique and Bullseye and red Dot, so things might be different now.

You couldn't get enough real rifle powder in a pistol case to show an advantage. Somebody was asking if AA9 was good in 9mm; it is a book load but I wouldn't think it the best.

I believe case capacity is the limiting factor in 9mm powder choice. Because case capacity is so low, a relatively fast powder is often the only choice that makes sense. I have had good results loading Promo in 9mm for my Hi-Point carbine. The case is loaded pretty full. Velocity tops 1400fps. 95gr plated bullet. Not a wimpy load for a 9mm carbine.

lemaymiami said:

Skimmed this thread -then had a question, given the rise in popularity of pistol cartridge carbines... Is there a round in either 9mm or 40 cal that folks prefer for carbine length barrels? Would love to hear what folks that use the carbines are using -particularly for defensive purposes...

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total recoil said:

All my 9mm is loaded to 1150 fps and I shoot it in both carbines and all my pistols.

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One of my most recent acquisitions was a 20 y.o. Marlin 1894 lever action. I already had a GP-100 to pair with it and I started reloading for the revolver. I am using W296 on 158 gr. semi-jacket bullets, both HPs and SPs with a near maximum charge. The .357s in the revolver kick more than 158 gr. factory loads but the rifle seems to absorb most of the recoil.
I don't have a chrono so I don't know what MV I am getting.

drband said:

I believe case capacity is the limiting factor in 9mm powder choice. Because case capacity is so low, a relatively fast powder is often the only choice that makes sense. I have had good results loading Promo in 9mm for my Hi-Point carbine. The case is loaded pretty full. Velocity tops 1400fps. 95gr plated bullet. Not a wimpy load for a 9mm carbine.

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The same thing happened to me with my .243 rifle. The various factory loads I tried ( 100 gr. Fed., Rem., Winchester) were not very accurate and the manuals only mentioned 100 gr. bullets and maybe 80 gr. I needed info on bullets all the way down to 60 gr. HPs. I wrote to several manufacturers and one of the letter that came back recommended Accurate 2230 as it would work for 60 to 100 gr. loads. Warning - the 2230 was originally designed for the smaller .223 and is a fairly fast burning powder. It will cause more "throat erosion" in the chamber over time, esp. as the loads I worked up needed to be near max for the best accuracy in this rifle.

If anyone has some solid testing info on various 9mm out of a carbine please point it out...

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Here you go.

http://www.ballisticsbytheinch.com/9luger.html


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Perfect.... what particularly interests me is the terminal end of things since I’ve read that projectiles meant to expand at pistol velocities might not hold up well at higher rifle speeds...

I’m guessing that gelatin impact results would be what’s needed but don’t know if any comparisons have been done on that side of the equation. If all else fails I guess you could stick with fill metal jacket rounds...

That’s why the research...