Pistol caliber carbine- Aero Survival Rifle stats

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Starr1der

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I'm on TNW's mailing list, and just got this: some chrono numbers on the .45 carbine.
Granted, very limited numbers, and commercial ammo, but interesting nonetheless.


When I get some free time to get to the range with chrono, ASR/.45 and 1911/.45, I will post
some data from various loads; my biggest problem right now is insufficient time to do all that I
want to do. As my wife continues healing from her broken ankle, it should free up some "me"
time. As it is, about the only time I have to load is while doing laundry;). I can only get to the
range for maybe an hour a week.
http://www.tnwfirearms.com/v/vspfiles/assets/45_TUL_GRAPH.png
http://www.tnwfirearms.com/v/vspfiles/assets/45_FED_GRAPH.png
http://www.tnwfirearms.com/v/vspfiles/assets/45_REM_GRAPH.png
http://www.tnwfirearms.com/v/vspfiles/assets/45_FORTS_GRAPH.png
First 3 links are .45 ACP, 230 gn FMJ; 4th link is 180 gn FMJ.
Interestingly enough, the first shot in each string seems to be an outlier.
Also, the rate of speed drop for the 180 gn seems excessive to me. Unfortunately, the
only way I could run similar tests would be at my brothers club; and that is 160 miles each way.
 
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I would be more interested in the accuracy at 50 yards than velocity.

I don't believe the 16" barrel is going to help the velocity much.

My biggest gripe about a PCC is the lack of accuracy. I have reason to believe that it won't be anywhere near what you think it should be and different ammo will be very erratic. I'll guess 6 moa off the top of my head using the same factory ammo.

It won't be anything like an AR with an 18" barrel.
 
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CoalTrain49-
I have the ASR in both 9mm and .45ACP; granted, I haven't had the chance to get any longer range shooting done, since I got the .45 conversion kit for Christmas, but at least in 9mm it is reasonably accurate; I'd say that it is more accurate than I am :). I load my own ammo, and if you would look under the handloads section, under my name, I've posted some numbers from 9 mm. I've gotten an extra 250-300 FPS from a 4" Springfield to the 16" ASR in 9 mm 115gn coated RN, playing with 1500 FPS (granted, that was at 5 yards) rather than at distance; and accuracy was well within MY limits- under 2" group at 100 yards. Now, looking at the numbers for the .45 commercial, I do know that it is pretty low for the ASR; I've been loading my .45 with 230 gn coated RN at 950 FPS from a 1911 Government with a 5" barrel; I would expect 1150 from the ASR, depending on how slow the powder I use burns. Slower powders seem to work better with the longer barrels. As a caveat- I don't use factory ammo, since I can load my own with better results for half the cost, and better accuracy to boot.
 
I've posted some numbers from 9 mm. I've gotten an extra 250-300 FPS from a 4" Springfield to the 16" ASR in 9 mm
Similar to what I have seen from 9MM 115 and 124 Gr jacketed and plated from a 4" to 16" barrel. Fast powders like N320 gain nothing to very little, while slow powders like AA #5, N340 etc, take advantage of the extra length.
 
I can believe the first round in each string is different, since the action doesn't lock open on an empty magazine, so the bolt is manually racked and dropped. Bu there are some outliers on their graphs that need to be thrown out, as it just isn't possible to not lose velocity over distance.
 
CoalTrain49-
I have the ASR in both 9mm and .45ACP; granted, I haven't had the chance to get any longer range shooting done, since I got the .45 conversion kit for Christmas, but at least in 9mm it is reasonably accurate; I'd say that it is more accurate than I am :). I load my own ammo, and if you would look under the handloads section, under my name, I've posted some numbers from 9 mm. I've gotten an extra 250-300 FPS from a 4" Springfield to the 16" ASR in 9 mm 115gn coated RN, playing with 1500 FPS (granted, that was at 5 yards) rather than at distance; and accuracy was well within MY limits- under 2" group at 100 yards. Now, looking at the numbers for the .45 commercial, I do know that it is pretty low for the ASR; I've been loading my .45 with 230 gn coated RN at 950 FPS from a 1911 Government with a 5" barrel; I would expect 1150 from the ASR, depending on how slow the powder I use burns. Slower powders seem to work better with the longer barrels. As a caveat- I don't use factory ammo, since I can load my own with better results for half the cost, and better accuracy to boot.

I've been looking at one of these in 45 acp. Some reports state they are 2-3 moa. That would be 1-1.5" at 50 yards. That's not bad considering the cartridge. I've had bad luck with 357 mag in a carbine. About 6 moa was the best I could do. I tried everything, even replaced the barrel and stock, no enchilada. I thought it might be the cartridge, but maybe it was the way the barrels are mfg. I'm not going to mention the maker but you probably know who it is. I would like to see some video of the 2-3 moa before I purchased an ASR. That's a lot of money, especially when I can buy an AR for $400 and load .223 for about the same as 45 acp.
 
I can believe the first round in each string is different, since the action doesn't lock open on an empty magazine, so the bolt is manually racked and dropped. Bu there are some outliers on their graphs that need to be thrown out, as it just isn't possible to not lose velocity over distance.
Yeah, that struck me as more than a little impossible:p
 
Oh, one more thing- keep an eye out; I've been working up some .45 loads; 200 gn coated SWC. I've done loads for 572, BE-86 & WSF; I want to get a couple of loads with faster powders, maybe Bullseye, W231 or Power Pistol for comparison. I will post for consideration; I'll even run some 230 (coated) that I already have for comparison with TNW's numbers. I hope to get it in by the end of June; I'm really pressed for time.
 
You should expect 200-400 fps increase from a pistol to a rifle.

My .44 magnum loads go from 1200 in my SBH to 1600 in my Marlin 1894 with a 24'" bbl.

Only get about 200 more from my Kel-Tec S2K in .40 S&W over my Glocks.

Accuracy is what it is, as 100 yards is going to be about it for any Auto Pistol Caliber Carbine. But the whole purpose is to have a gun that shares mags with your pistol and gives you more range. The accuracy is always going to be better than a pistol for obvious reasons like a shoulder stock, longer sight radius or an optic. That said 6" at 100 yards is more than adequate for the intended purpose, and that's all the better that most people can do with either a Red Dot or Iron Sights anyway.

I always look at my shooting based on the Man Sized Target at whatever range we are shooting. This builds my confidence that if I can get close to a smaller Silhouette Target, a man sized target is well within my skill level for virtually every shot. And that's usually offhand, so off a rest anyone should be nearly 100%.

I knock down 200 Meter Rams with the Iron Sighted Marlin on a regular basis. Trajectory becomes a factor there but as long as you've taken time to figure out the elevation offsets, the bigger boolit will take care of the rest. Those 55 lb Steel Rams drop with authority when hit in the center..

Not many people are going to survive a chest hit from a 250 gr SWC at any speed, a 9 mm you might get by with, maybe even a .45ACP, but there's also that Semi Auto feature to factor in. That makes it so you can pump more rounds down range for more chances to succeed.

When it comes to boolits,,, bigger is definitely better.

Randy

100464454.JPG
 
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I don't believe the 16" barrel is going to help the velocity much.
It does, but the amount depends on the load. I've tested it and posted results here before, will see if I can find them again. Test guns were S&W 625 and Marlin Camp Carbine. Significant improvement for some rounds, in my opinion. IIRC velocity increases ranged from about 75 fps to about 250, with slower burning powders and lighter bullets going up the most. A 200+ grain bullet at 1100+ fps packs a whallop!
 
You should expect 200-400 fps increase from a pistol to a rifle.
With slow for the caliber powders that is what I have seen in 9MM. AA #5, N340, HS-6, True Blue...

With a fast for the caliber powder plinker load you will see little to none. My N320 plinker load gains nothing in the AR vs a 4.5 to 5inch barreled pistol.
 
Here are the results of my actual comparison of .45acp from a S&W M625 (4" barrel) and a Marlin Camp Carbine, mentioned in post #11 above. First number is average velocity from handgun, second is average from the rifle, third is increase. Hope this helps some...

Rem 230 HP 836, 914, +77
Rem 230 Hardball 798, 872, +74
PMC 230 Hardball 872, 950, +78
Magtech 230 Hardball 850, 1022, +172
Win ST 185 917, 1139, +222
Fed 230 Hardball 834, 956, +122
Win 230 Clean 845, 1036, +191
RP 200 960, 1154, +194
Win 230 WB Hardball 821, 960, +139
Reload 6.8 Unique 225 grain lead 892, 1143, +251
 
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