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Ramshot Powder data.

Discussion in '10mm Reloading Forum' started by MCNETT, Aug 25, 2003.

  1. Chuck_Glock

    Chuck_Glock Chuck_Glock

    83
    0
    Jun 6, 2009
    Montevideo,MN
    I've been using Silhoutte for about 2 years now. I like it and I feel it doesn't get a fair shake from some. It serves my purpose and it always seems to be available. Always. Can't say that about some of the more popular powders.

    So, I present to you the load data that I acquired today while at the range. I suspect a few of you will have the need to opine about the loads being a little hot. Please refrain from doing so as I am well aware of all that I am doing and feel comfortable doing so. Bear in mind that Ramshot's loading guide lists 8.4 grains as their max load for 180 gr. bullets. Surprisingly, my average velocity is damn near identical to what Ramshot lists for 8.4 gr. The resulting pressure for said load is 34,400 psi. Kinda sucks because the "10" is rated to 37,500 psi but can withstand up to 42,900 psi. I say that cautiously and prefer not to argue the point. The brass is slightly bulged with the loads at 9.0 gr. and larger and I will be able to resize fairly easily. No worries here. Been there, done that.

    Today's testing was accomplished using my G20 with a Lone Wolf Barrel (stock length) along with a 22# recoil spring riding on a stainless steel guide rod. Cases are Starline shooting 180 gr. Hornady XTP JHP. The chrono is a model F1 Shooting Chrony. Distance from chrono was 6 feet. Ambient temperature was 45 deg. with overcast skies. C.O.L. were set at 1.258" - 1.259" WLP primers are employed to light the fire.
    As a disclaimer I must inform you that these loads are what I use (and have used) and in no way do I take responsibility if you blow your s**t up! Proceed with caution.
    So here we go. Let the chips fall where they may.

    8.4 Grains
    1197
    1201
    1205
    1211
    1219
    1225
    Avg. 1209.66 (Silhoutte specs out at 1210):cool:
    S.D. 10.78
    E.S. 28

    8.6 Grains
    1224
    1225
    1245
    1248
    1249
    1256
    Avg. 1241.16
    S.D. 13.4
    E.S. 32

    8.8 Grains
    1259
    1264
    1267
    1272
    1279
    1280
    Avg 1270.16
    S.D . 8.37
    E.S. 21

    9.0 Grains (This is my do-it-all load I use for hunting, plinking, etc. Developed this by trial and error and without the benefit of a chrono.)
    1261
    1264
    1276
    1278
    1279
    1281
    Avg. 1273.16
    S.D. 8.47
    E.S. 20
    (It appears that this load is damn near identical to 8.8 grains. I will need to retest this spring to verify these two loads.)


    9.2 Grains
    1274
    1289
    1295
    1296
    1302
    1302
    Avg. 1293.00
    S.D. 10.50
    E.S. 28

    9.4 Grains
    1300
    1303
    1309
    1310
    1319
    1320
    Avg. 1309.16
    S.D. 7.13
    E.S. 20

    9.6 Grains (This load looks promising)
    1327
    1327
    1330
    1331
    1337
    1339
    Avg. 1331.83
    S.D. 5.07
    E.S. 12

    9.8 Grains
    1340
    1347
    1348
    1355
    1356
    1359
    Avg. 1350.83
    S.D. 7.08
    E.S.19

    10.0 Grains
    1341
    1349
    1351
    1361
    1364
    1367
    Avg. 1355.00
    S.D. 10.07
    E.S. 26
    Not gaining much here over 9.8 grains.

    Double Tap 180 Gr. JHP 1350 FPS
    (Yeah Right)
    1254
    1257
    1274
    1287
    1290
    1301 --- Nice try, but not even close to 1350
    Avg. 1277.16 - Not Bad
    S.D. 18.88 - The worst of all strings fired.
    E.S. 47 - Same here.

    In all fairness the D.T. rounds performed as expected coming from a mass producer of ammunition. No surprises there. Hence one reason, of many, that we like to load our own.

    I plan to re-run these tests if the weather conditions will be close to what they were today. But that probably wont come to fruition until spring. Deer season is upon us (next weekend).:supergrin:
     
  2. ragsflh

    ragsflh

    42
    0
    Nov 19, 2011
    loaded some true blue up and started new yr right. 9.2 gr blue,180gr jhp mon.gold,wlp primers col 1.250 chony dieds anyways good shooting,clean burning.also zip works great too.
     


  3. RDub01

    RDub01

    76
    2
    Aug 5, 2012
    So Oregon
    Hi
    Shot some 180gr SpeerTMJ's through a G20-SF with Ramshot Silhouette powder.
    Glock 20SF with factory barrel and spring
    Rounds were seated to1.26” COL
    Circles are 5½” at 25yards
    Shooting was done off of a Caldwell Pistol Rest
    Velocities taken with an Oehler Mod 33 chronograph. Skyscreens centered 8’ from muzzle.

    Data on targets;
    Average velocity
    Velocity spread
    Standard deviation
    temperature



    [​IMG]



    SILHOUETTE

    Ramshot is listing 8.4grs as a maximum load with a 180gr bullet. Case expansion is indicating this is a rather mild load. Watching expansion I took Silhouette up to 9.0grs. Four of five cases at 9.0grs showed acceptable expansion, except the one .4345”, which is where I stop.

    8.4grs .4337, .4334, .4331, .4334, .4333
    8.6grs .4334, .4333, .4331, .4337, .4336
    8.8grs .4339, .4341, .4335, .4342, .4336
    9.0grs .4336, .4345, .4342, .4338, .4341
     
    Last edited: Nov 24, 2012
  4. CaptainXL

    CaptainXL

    321
    2
    Nov 20, 2009
    Illinois
    Haven't used TB in 10mm but it is my favorite powder and most accurate powder for 9mm. Have also used it in .40SW but it is not my most accurate powder in .40's.

    TB meters exceptionally well, is very clean and very low flash.
     
  5. Taterhead

    Taterhead Counting Beans

    3,599
    107
    Dec 13, 2008
    Boise, Idaho
    Played around with some Silhouette today. Loaded some softer-shooting rounds. I was impressed with the metering properties, and general cleanliness. With a powder of this burn speed, it is not one that I intended to seek the top end with. I leave that work to the slower burners.

    These all cycled the G20 perfectly, and grouped pretty well.

    This would be another option for everyday blasting, gaming, or for people who shoot your 10mms that might be recoil averse. Or because Silhouette is the only stinkin' powder that you can find in today's environment. It is good to have options when gun powders are scarce.

    Bullet: Precision Delta 180 gr FMJ
    Primer: CCI 300
    Brass: mixed cases
    Powder: Ramshot Silhouette
    COL: 1.25"
    Temp: 37F

    7.5 gr: average velocity 964, ME 372
    7.7 gr: average velocity 990, ME 391
    7.9 gr: average velocity 998, ME 398

    Ramshot compared very closely to Accurate no. 5 in metering and velocities. For example, 8.0 grains of A5 went 988 fps.
     
  6. WeeWilly

    WeeWilly

    3,515
    346
    Nov 12, 2011
    Idaho


    Thanks for that.

    How did the SD/ES look at those load densities?
     
  7. _The_Shadow

    _The_Shadow Ret. Fireman

    4,519
    21
    Jul 23, 2007
    Southeast, LoUiSiAna
    Ramshot Silhouette is the same as Winchester Action Pistol.
    Ramshot data
    [​IMG]

    Here is some older Winchester data for WAP
    [​IMG]
     
  8. Taterhead

    Taterhead Counting Beans

    3,599
    107
    Dec 13, 2008
    Boise, Idaho
    Not awesome, but I've seen worse for sure. SDs around 24 and ES in the 70s and 80s over 8 & 9 shot strings. Interesting that the start charge was tighter than the highest of the three charges.


    Shadow, interesting data. I had heard that WAP and Silhouette were the same, but had not seen the data side-by-side. Thanks for posting that!
     
  9. deangulbury

    deangulbury

    7
    0
    Feb 24, 2015
    portland
    Has anyone else worked with true blue for 10mm? I am new to loading 10mm but have some TB from 5.7X28 and have used it in .45ACP with good results.
     
  10. TDC20

    TDC20

    1,013
    285
    Apr 11, 2011
    Look earlier in this thread, posts # 2, 3, 4, 5, 7, and 17.
     
  11. deangulbury

    deangulbury

    7
    0
    Feb 24, 2015
    portland
    I guess what I meant was, has anyone else had the same kind of success with true blue as the gentleman in the op. Many years have gone by and I have not come across any other data for that load where as longshot, aa9 800x is abundant. I will work up from what appears to be the suggested start load of 7.7 and move up in .5 increments and report back. Just interested to see if this is an mverloked powder gor the 10mm.
     
  12. Taterhead

    Taterhead Counting Beans

    3,599
    107
    Dec 13, 2008
    Boise, Idaho
    I like your plan for starting low and working up, but I'd suggest smaller than 1/2 grain increments for your ladders. 1/2 grains is quite a big leap for such a quick-burning powder.

    Please post your results, if you get a chance.
     
  13. deangulbury

    deangulbury

    7
    0
    Feb 24, 2015
    portland
    Finally got a chance to get out with my chrongraph and my glock 20 and eaa witness compact. I do NOT recommended anyone to try to duplicate my findings I am just sharing my data for True blue powder.
    All cases were new starline with federal lp primers pushing 180gr XTP. All of these are 5 shot averages and a few had duplicate speeds in their strings.
    First the eaa with 3.6 inch barrel.
    8.5 gr TB @ 970 fps
    9.0 gr TB @ 1109
    9.5 gr TB @ 1135
    10 gr TB @ 1188
    All OAL's are 1.26 btw
    Glock 20 factory barrel
    8.5 gr TB @ 1003 fps
    9.0 gr TB @ 1155
    9.5 gr TB @ 1181
    10 gr TB @ 1238
    I experienced no signs over pressure in any of these and found True Blue to meter like water and consistent through my Lee powder charger and verified each weight on my Lee scale. As always start low and work up.
     
  14. _The_Shadow

    _The_Shadow Ret. Fireman

    4,519
    21
    Jul 23, 2007
    Southeast, LoUiSiAna
    Looks like you matched exactly what McNett did, thanks for the range report.
     
  15. RDub01

    RDub01

    76
    2
    Aug 5, 2012
    So Oregon
    Hello
    Thought I would do my own workout with True Blue and see what happens. Just found some at a local shop.

    Bone stock Glock 20-SF, Starline brass, CCI 300 primers and 180gr Hornady HAP bullets.
    COL 1.26"
    Targets shot at 25 yards. Data on targets;
    Velocity
    Extreme Spread
    Standard Deviation
    Temp F°

    I wasn't especially excited by the way it shot out of this gun. However, it did turn it some very low Standard Deviation numbers. The same day I did a workout with N350, (posted on the VV thread), and N350 shot much better.

    180 HAP True Blue -Resized.jpg


    This gun showed pressure at 9.4grs and got smileys at 9.7. I wouldn't load any more than about 9.2grs. for an everyday shoot load.

    Here is a spreadsheet of the case head measurements etc.


    180 HAP Expansion data 1.jpg

    Anyway, that's how True Blue shook out in my gun..
     

    Attached Files:

    Last edited: Nov 27, 2015