Home Grown SS 190

Reloading info for the 5.7x28mm

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Buffman
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Re: Home Grown SS 190

Post by Buffman » 22 Oct 2013, 20:29

no but I can pull 2013 lot as well.

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Re: Home Grown SS 190

Post by Buffman » 24 Oct 2013, 10:17

6.7-6.8gr~ 2013, vs 6.6gr~ 2007. Interesting that my blue/white box 195LF is 7.1gr


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Re: Home Grown SS 190

Post by grimmond » 24 Oct 2013, 22:13

Thank you for posting that.
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Re: Home Grown SS 190

Post by Buffman » 27 Oct 2013, 17:08

5.56 loaded up :) around 4000fps per load.. Not sure when I'll get them back :)

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Re: Home Grown SS 190

Post by rfd298 » 29 Oct 2013, 16:41

In theory you can really get the SS190 bullet cooking in 5.56/.223. :p Ramshot X-terminator / Accurate 2230 (same thing) would be a good start... to get close to 4000 fps.

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Re: Home Grown SS 190

Post by Buffman » 29 Oct 2013, 17:12

The load my loader worked up was 3800 fps. Not sure how accurate they will be or if they will work from a 1:9 barrel at that speed. I should have these back next week.

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Re: Home Grown SS 190

Post by DoubleJ » 29 Oct 2013, 19:45

I run 40gr Vmax in my .223 in the neighborhood of 3600 with no trouble, I think you'll be ok at 3800. No idea about accuracy though.

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Re: Home Grown SS 190

Post by Buffman » 30 Oct 2013, 05:02

DoubleJ wrote:I run 40gr Vmax in my .223 in the neighborhood of 3600 with no trouble, I think you'll be ok at 3800. No idea about accuracy though.
Yeah. I imagine the length should help stabilize these (they're .81-.85" long), but my loader has never loaded them before, so he's unsure oh whether the 1:9 will work or if a 1:12-1:14 would be needed. Someone else said they may not cycle an AR either, so this will be a good experiment.

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Re: Home Grown SS 190

Post by rfd298 » 30 Oct 2013, 15:27

rfd298 wrote:In theory you can really get the SS190 bullet cooking in 5.56/.223. :p Ramshot X-terminator / Accurate 2230 (same thing) would be a good start... to get close to 4000 fps.
Here is the results of two five shot groups. Not as good as one would of liked but it is what it is.
This rifle normally shoots 34gr Varmint Nightmare X-treme sub MOA all day long.
Source Rifle was a 24" RRA varmint upper with 1 in 8 twist barrel, Spikes Tactical lower, Geissele SSA trigger group, Redfield Revolution 4-12X 40mm scope.
Distance 100 yards
Source brass- Hornady 223 Remington once fired trimmed to 1.750
Bullet 32gr SS190
Powder Ramshot X-Terminator 29.5gr
COAL-2.260

string 1
3933
3910
3944
3921
3939
avg 3929
spread 34
std dev 14

group size 2.302"

string 2
3921
3944
3910
3881
3950
avg 3921
spread 69
std dev 28

group size 1.848"

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Re: Home Grown SS 190

Post by Buffman » 30 Oct 2013, 18:41

did they cycle OK?

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Re: Home Grown SS 190

Post by rfd298 » 31 Oct 2013, 15:35

Everything cycled fine. Brass looked good. Just a little disappointed with the accuracy.

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Re: Home Grown SS 190

Post by DoubleJ » 01 Nov 2013, 15:03

Maybe a different powder? I get 3" groups from RL15, 3/4" groups from TAC, everything else being the same. I think RL10 is good for light bullets, maybe 748 or Varget? Oh, or 8208, that stuff could make an oval bullet go straight.

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Re: Home Grown SS 190

Post by grimmond » 01 Nov 2013, 17:58

Have either of you tried or use CFE223 for any of your loads? I picked up a pound of it for real cheap but have only used it with 55gr FMJ, and some Cutting Edge Raptors recently.
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Re: Home Grown SS 190

Post by DoubleJ » 01 Nov 2013, 21:06

I just got a pound of it myself, it's been as hard to find as anything, but I haven't tried any loads yet. Maybe tomorrow. Looks like it favors lighter bullets

Edit: I was wrong, load data doesn't start until the 50gr GMX solid, so it's back to 10x

That extra 6" of barrel you're running makes those little bullets scream.
SPR clone, 18" Rainier 1:8 .223 Wylde
FC Brass, Alcan MaxFire Primer, 32gr pill, 2.24" COAL, 24.5gr RL-10x, no pressure signs @ primer
5 shots
2 MOA group (3/4 - 7/8 MOA with ammo it likes)
Hi - 3350
Low - 3276
Avg - 3318
ES - 74

Accuracy is disappointing, but got better as velocity increased, and it seems I have alot more room to grow this one, but maybe 10x is a bit too slow. Of course this is probably better accuracy than M855

I fired one of my slower (3200fps-ish) loads into a cast iron flange plate, penetration was almost identical to 7.62x39 from my AK, but there was no danger of it going through almost an inch of metal

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Re: Home Grown SS 190

Post by tal35 » 02 Nov 2013, 21:58

I Loaded 5.7x28 factory green tip 27 gr. with SS190 slugs, 31.2gr All rounds fired from ar15 style 5.7x28 upper 16". Powder charges were as follows:
1. pulled bullet 6.4 gr factory powder, replaced factory 27 gr bullet with SS190 all rds seated to 1.59" oal 2489fps
2. powder 6.5gr 2461 fps
3. powder 6.6 gr. 2489 fps
4. powder 6.5 gr. 2409 fps

test round factory blue tip 2144 fps
Temperature 44 degress 82% humidity
No evidence of primer flattening
Last : No crimp applied, thinking about a CH4 crimp tool but need input on it first.

So far So GOOD!

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Re: Home Grown SS 190

Post by 22eley » 12 Nov 2013, 07:51

tal35 wrote:I Loaded 5.7x28 factory green tip 27 gr. with SS190 slugs, 31.2gr All rounds fired from ar15 style 5.7x28 upper 16". Powder charges were as follows:
1. pulled bullet 6.4 gr factory powder, replaced factory 27 gr bullet with SS190 all rds seated to 1.59" oal 2489fps
2. powder 6.5gr 2461 fps
3. powder 6.6 gr. 2489 fps
4. powder 6.5 gr. 2409 fps

test round factory blue tip 2144 fps
Temperature 44 degress 82% humidity
No evidence of primer flattening
Last : No crimp applied, thinking about a CH4 crimp tool but need input on it first.

So far So GOOD!
Did you tell me about this?

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Re: Home Grown SS 190

Post by Buffman » 15 Dec 2013, 22:11

will try to find a way to test this week:

Image
Image
Image

DoubleJ
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Re: Home Grown SS 190

Post by DoubleJ » 17 Dec 2013, 17:17

Could we split the thread, put the AR stuff in the reloading forum? I've got some data to share, but feel like a hijacker.

18" Rainier Wylde chamber AR

FC brass, Alcan primer, 32gr black tip, used Lee 2nd edition load data average from 30 and 34gr loads, 2.230 COAL, A2200 powder.
24.6gr - Avg 3422 FPS, ES 124
25.0gr - Avg 3542 FPS, ES 66
25.4gr - Avg 3596 FPS, ES 78
25.8gr - Avg 3652 FPS, ES (Error, Only read one shot)
26.2gr - Avg 3705 FPS, ES 101
26.6gr - Avg 3753 FPS, ES 127

I never saw any pressure signs, brass wasn't trimmed or crimped, so that's probably the big ES, and accuracy was 2 MOA at best in a pretty stiff wind

I always shake each round after I load it, just a triple check for powder, and you can actually hear some of the pills inside the bullets rattle, so there's
the inaccuracy. Not sure if that's a design thing or from being pulled down. Groups actually seemed to tighten up as velocity went up, but it was windy, cold, and I was getting bored shooting through the chrony.

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grimmond
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Re: Home Grown SS 190

Post by grimmond » 24 Dec 2013, 13:16

Here is some load data for those wanting to load back for the FSN. I used unfired cases with the factory primer from a bunch of pulled AE rounds. OAL set at 1.59". Used Ramshot Silhouette. Had no issues with any of the loads. All primers looked good, and felt great when shooting. I plan to test higher.

5.5gr avg 2081fps, ES=58.34, SD=24.10
5.6gr avg 2093fps, ES=57.14, SD=23.84
5.7gr avg 2095fps, ES=122.0, SD=44.73/ had one velocity low which threw off set
5.8gr avg 2124fps, ES=55.63, SD=20.29
5.9gr avg 2151fps, ES=104.4, SD=45.77/ had one velocity high which threw off set
6.0gr avg 2158fps, ES=74.40, SD=29.46/ had one velocity low which threw off set
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Re: Home Grown SS 190

Post by Buffman » 28 Dec 2013, 23:14

For the 5.56 guys, hitting 34XX in my 16" barrel, and 2800 fps in my 10.25" barrel.. Loader was a little off on the #s, but better safe than sorry. I was only able to take 20 ish yard shots iron sights today, but accuracy was decent. Maybe 2 MOA but it was not slow fire :) Good Clean .22 cal holes

Going to see what they do or don't do to steel plates and or water jugs :)

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