Site Notices
6/17/2013 4:21:35 PM
Page:  / 61
Poll
What 7.62x40mm barrel should Noveske make for you

1:12 poly twist

1:12 5 groove conventional twist

1:15 5 groove conventional twist

1" gas block seat with pinned .750" Noveske block

1" long .750" gas block seat with no gas block

1.9" long .750 gas block seat with no gas block

16" heavy contour mid-length gas system

16" Recon contour carbine length gas system

16" Recon contour mid-length gas system

20" heavy contour mid-length gas system


















(111)  18%

(52)  8.4%

(9)  1.5%

(74)  12%

(25)  4%

(26)  4.2%

(37)  6%

(50)  8.1%

(157)  25.4%

(77)  12.5%
You Must Be Logged In To Vote
Total Votes: 618
Author
Message
BsChoy
Offline
Posts: 306
Feedback: 100% (9)
Link To This Post
Posted: 6/10/2012 4:45:56 AM
Originally Posted By FLICK-244:
Has anyone tried AA2200 in the mid-length gas barrels? If so, how did it compare to AA1680? Did it cycle the action?

I've not purchased a 7.62 x 40 AR yet, but AA2200 is showing good promise in the .458 Socom from my (limited) testing. It would be nice to be able to consolidate powder usage and enjoy the benefits that AA2200 has over AA1680.

I apologize if this has been asked and answered before, but I did not see it. Thanks!


I haven't tried this powder but I imagine velocity would suffer. It would prob cycle the rifle but the pressure would be too low for an acceptable velocity.
BIGGDAWG
Member
Offline
Posts: 991
Feedback: 100% (33)
Link To This Post
Posted: 6/10/2012 7:08:17 AM
Originally Posted By FLICK-244:
Has anyone tried AA2200 in the mid-length gas barrels? If so, how did it compare to AA1680? Did it cycle the action?

I've not purchased a 7.62 x 40 AR yet, but AA2200 is showing good promise in the .458 Socom from my (limited) testing. It would be nice to be able to consolidate powder usage and enjoy the benefits that AA2200 has over AA1680.

I apologize if this has been asked and answered before, but I did not see it. Thanks!


no expert here but it may be a little slow for the 110gn bullets but may work with the heavier ones. if i can find some i will give it a try. i want to try some in my new 6.5pcc also. maybe wilson can comment on it?
FLICK-244
Member
Offline
Posts: 262
Feedback: 0% (0)
Link To This Post
Posted: 6/13/2012 12:11:32 PM
Originally Posted By BIGGDAWG:
Originally Posted By FLICK-244:
Has anyone tried AA2200 in the mid-length gas barrels? If so, how did it compare to AA1680? Did it cycle the action?

I've not purchased a 7.62 x 40 AR yet, but AA2200 is showing good promise in the .458 Socom from my (limited) testing. It would be nice to be able to consolidate powder usage and enjoy the benefits that AA2200 has over AA1680.

I apologize if this has been asked and answered before, but I did not see it. Thanks!


no expert here but it may be a little slow for the 110gn bullets but may work with the heavier ones. if i can find some i will give it a try. i want to try some in my new 6.5pcc also. maybe wilson can comment on it?


I anxiously await the results of your testing BIGDAWG. Thanks!
Italian poet Dante Alighieri:
"The hottest places in Hell are reserved for those who, in times of great moral crisis, maintain their neutrality."
BIGGDAWG
Member
Offline
Posts: 1002
Feedback: 100% (33)
Link To This Post
Posted: 6/14/2012 11:27:11 AM
[Last Edit: 6/14/2012 11:27:32 AM by BIGGDAWG]
Originally Posted By FLICK-244:
Originally Posted By BIGGDAWG:
Originally Posted By FLICK-244:
Has anyone tried AA2200 in the mid-length gas barrels? If so, how did it compare to AA1680? Did it cycle the action?

I've not purchased a 7.62 x 40 AR yet, but AA2200 is showing good promise in the .458 Socom from my (limited) testing. It would be nice to be able to consolidate powder usage and enjoy the benefits that AA2200 has over AA1680.

I apologize if this has been asked and answered before, but I did not see it. Thanks!


no expert here but it may be a little slow for the 110gn bullets but may work with the heavier ones. if i can find some i will give it a try. i want to try some in my new 6.5pcc also. maybe wilson can comment on it?


I anxiously await the results of your testing BIGDAWG. Thanks!



just ordered some aa2200 from my local scheels should be here next friday.

so i should have some data in a couple weeks.

Dr69er
Offline
Posts: 830
Feedback: 100% (5)
Link To This Post
Posted: 6/14/2012 11:39:34 AM
Originally Posted By BIGGDAWG:
Originally Posted By FLICK-244:
Originally Posted By BIGGDAWG:
Originally Posted By FLICK-244:
Has anyone tried AA2200 in the mid-length gas barrels? If so, how did it compare to AA1680? Did it cycle the action?

I've not purchased a 7.62 x 40 AR yet, but AA2200 is showing good promise in the .458 Socom from my (limited) testing. It would be nice to be able to consolidate powder usage and enjoy the benefits that AA2200 has over AA1680.

I apologize if this has been asked and answered before, but I did not see it. Thanks!


no expert here but it may be a little slow for the 110gn bullets but may work with the heavier ones. if i can find some i will give it a try. i want to try some in my new 6.5pcc also. maybe wilson can comment on it?


I anxiously await the results of your testing BIGDAWG. Thanks!



just ordered some aa2200 from my local scheels should be here next friday.

so i should have some data in a couple weeks.




Can't wait to see on how it works on all the .223 based wildcats .

BIGGDAWG
Member
Offline
Posts: 1006
Feedback: 100% (33)
Link To This Post
Posted: 6/14/2012 5:57:04 PM
Originally Posted By Dr69er:


Can't wait to see on how it works on all the .223 based wildcats .



plan on checking it out with the 6.5pcc when the barrel arrives.
BsChoy
Offline
Posts: 307
Feedback: 100% (9)
Link To This Post
Posted: 6/14/2012 11:56:20 PM
Originally Posted By BIGGDAWG:
Originally Posted By FLICK-244:
Originally Posted By BIGGDAWG:
Originally Posted By FLICK-244:
Has anyone tried AA2200 in the mid-length gas barrels? If so, how did it compare to AA1680? Did it cycle the action?

I've not purchased a 7.62 x 40 AR yet, but AA2200 is showing good promise in the .458 Socom from my (limited) testing. It would be nice to be able to consolidate powder usage and enjoy the benefits that AA2200 has over AA1680.

I apologize if this has been asked and answered before, but I did not see it. Thanks!


no expert here but it may be a little slow for the 110gn bullets but may work with the heavier ones. if i can find some i will give it a try. i want to try some in my new 6.5pcc also. maybe wilson can comment on it?


I anxiously await the results of your testing BIGDAWG. Thanks!



just ordered some aa2200 from my local scheels should be here next friday.

so i should have some data in a couple weeks.



Please update the thread after you get some range time with the AA2200 please. I gotta see this!
USMC_DS1
Offline
Posts: 18
Feedback: 100% (3)
Link To This Post
Posted: 6/16/2012 3:18:31 PM
[Last Edit: 6/17/2012 4:54:11 PM by USMC_DS1]
Yes, let us know how it goes... I use AA2200 for my 6.8 loads. Would be gr8 if I could consolidate powders for both 6.8 and 7.62x40.
BIGGDAWG
Member
Offline
Posts: 1031
Feedback: 100% (33)
Link To This Post
Posted: 7/1/2012 3:44:40 PM
[Last Edit: 7/1/2012 3:46:25 PM by BIGGDAWG]
Originally Posted By USMC_DS1:
Yes, let us know how it goes... I use AA2200 for my 6.8 loads. Would be gr8 if I could consolidate powders for both 6.8 and 7.62x40.



i finally got out to try the a2200 today. i only tried it with the 125 sierra pro hunter soft points.

quick load said 27.4 would be max load so i went from 25.9 to 27.4 in my fired cases. and as expected the velocities were slower than the 1680 and i saw no pressure signs so i am going to try

again from 27.4 to 28 in .2 increments and see how it goes. here is the chrono data. i also shot my tried and true load of 25.8 1680 with 110 vmax and 25.5 1680 with 125 sierra sp. as reference loads.

all loads cycled action fine with no issues.



CED Data Collector - 7/1/12
sunny 93deg wind 5-6 o'clock at 3-5mph
wcc 11 cases
rem 7 1/2 primers
col was 2.20"
18" poly barrel mid gas

25.8gn 1680 110 vmax fresh cases
1)2433
2)2498
3)2505
4)2465
5)2502

High:2505
Low:2433
E.S.:72
Ave.:2480.6
S.D.:27.8

25.5 1680 125 sierra sp ff cases
1)2391
2)2366
3)2363

High:2391
Low:2363
E.S.:28
Ave.:2373.3
S.D.:12.6
all cases for 2200 test are fire formed cases
25.9 AA2200 125 sierra sp
1)2175
2)2178
3)2196

High:2196
Low:2175
E.S.:21
Ave.:2183
S.D.:9.3

26.3 AA2200 125 sierra sp
1)2236
2)2230
3)2240

High:2240
Low:2230
E.S.:10
Ave.:2235.3
S.D.:4.1

26.7 AA2200 125 sierra sp
1)2261
2)2263
3)2265

High:2265
Low:2261
E.S.:4
Ave.:2263
S.D.:1.6

27.1 AA2200 125 sierra sp
1)2277
2)2295
3)2273

High:2295
Low:2273
E.S.:22
Ave.:2281.7
S.D.:9.6

27.4 AA2200 125 sierra sp
1)2333
2)2317

High:2333
Low:2317
E.S.:16
Ave.:2325
S.D.:8

25.5 1680 125 sierra sp
1)2402
2)2430
3)2381

High:2430
Low:2381
E.S.:49
Ave.:2404.3
S.D.:20.1


here is a pic of the primers left to right from 25.9-27.4 the 2 cases are 27.4

BsChoy
Offline
Posts: 312
Feedback: 100% (9)
Link To This Post
Posted: 7/2/2012 12:14:50 AM
Fantastic...I like the low SD's of that powder even though velocity suffered a bit it seems decent. Can't wait to the the higher charges.
Jourdan_D
Offline
Posts: 1
Feedback: 100% (5)
Link To This Post
Posted: 7/10/2012 8:30:07 AM
Just got done building my 7.62x40. Heading to the range this weekend to break in the barrel :)

I have a question about reloading. My dad use to reload for his 30 carbine but doesnt anymore so he gave me a ll his remaining bullets, brass etc. I have about 400 of the seirra 110gr round nose bullets and i'm wondering if anyone has a load data for them and the 7.62x40wt. Figured they would be good plinking ammo.

http://www.midwayusa.com/product/584609/sierra-pro-hunter-bullets-30-caliber-308-diameter-110-grain-round-nose-box-of-100
BIGGDAWG
Member
Offline
Posts: 1042
Feedback: 100% (33)
Link To This Post
Posted: 7/10/2012 8:46:38 AM
[Last Edit: 7/10/2012 8:48:44 AM by BIGGDAWG]
i have shot the 30 carbine 110 fmj's and they work good for plinking i think you need to run them slower but haven't tried that yet. i think if they were backed down to 2200 fps or so they would probably shoot better. somewhere around 24 grains of 1680 would be close.

here is my load to oal and bullet data



here is a link to a post with 30 carbine bullet targets

if you would like my chrono work up data pm your email and i can mail you the excel file.

here is my chrono data

110 30 carbine fmj ladder and off land test
all the loads are .020 off lands

25.8 1680 110 fmj .020 off lands
1)2422
2)2441
3)2391
4)2451

High:2451
Low:2391
E.S.:60
Ave.:2426.3
S.D.:22.9


26 1680 110 fmj .020 off lands
1)2449
2)2421
3)2465

High:2465
Low:2421
E.S.:44
Ave.:2445
S.D.:18.2


26.2 1680 110 fmj .020 off lands
1)2460
2)2495
3)2451

High:2495
Low:2451
E.S.:44
Ave.:2468.7
S.D.:19

all thes loads are .010 off lands
25.6 1680 110 fmj .010 off lands
1)2408
2)2416
3)2389

High:2416
Low:2389
E.S.:27
Ave.:2404.3
S.D.:11.3


25.8 1680 110 fmj .010 off lands
1)2416
2)2394
3)2402

High:2416
Low:2394
E.S.:22
Ave.:2404
S.D.:9.1


26 1680 110 fmj .010 off lands
1)2468

High:2468
Low:2468
E.S.:0
Ave.:2468
S.D.:0


26.2 1680 110 fmj .010 off lands
1)2431

High:2431
Low:2431
E.S.:0
Ave.:2431
S.D.:0




Originally Posted By Jourdan_D:
Just got done building my 7.62x40. Heading to the range this weekend to break in the barrel :)

I have a question about reloading. My dad use to reload for his 30 carbine but doesnt anymore so he gave me a ll his remaining bullets, brass etc. I have about 400 of the seirra 110gr round nose bullets and i'm wondering if anyone has a load data for them and the 7.62x40wt. Figured they would be good plinking ammo.

http://www.midwayusa.com/product/584609/sierra-pro-hunter-bullets-30-caliber-308-diameter-110-grain-round-nose-box-of-100

Jourdan_D
Offline
Posts: 2
Feedback: 100% (5)
Link To This Post
Posted: 7/10/2012 11:08:44 AM
Thanks for the info! After i posted i found that thread of yours. great info.My dad also gave me 300 of the nosler 125 BT, 4000 pimers and 1000 rd of lc 223 brass :) think im on supplies .....exept powder. cant wait to shoot the gun this weekend.
BsChoy
Offline
Posts: 323
Feedback: 100% (9)
Link To This Post
Posted: 7/17/2012 5:36:51 PM
Has anyone tried the Hornady 150 grain savage bullet in the x40?
advntrjnky
Offline
Posts: 3415
Feedback: 100% (22)
Link To This Post
Posted: 7/19/2012 7:59:33 PM
I didn't know there was a special "savage" bullet from Hornady. I do know that the 30. cal Hornady interlock flat base canelure is slightly too far back ( ie...too long COL) for reliable feeding in a "true" .300sav magazine and my .30hrt (41mm case), but about right for a 38mm cased wildcat I have.......so cannelure would likely be in the wrong place for the 7.62x40, which was designed around 125gr sized standard construction bullets and lighter.

advntrjnky
BIGGDAWG
Member
Offline
Posts: 1060
Feedback: 100% (33)
Link To This Post
Posted: 7/20/2012 8:09:25 AM
Mr. Wilson,
I am wondering if the chamber drawing is available? i want to have ch4d make me a custom trim/size die for my dillon rt1200 trimmer and they need the chamber drawing to do so
Graycard
Offline
Posts: 266
Feedback: 100% (16)
Link To This Post
Posted: 7/21/2012 6:39:00 PM
I think Bill might be gone for a fewweeks.
BIGGDAWG
Member
Offline
Posts: 1066
Feedback: 100% (33)
Link To This Post
Posted: 7/21/2012 6:50:20 PM
i think i have the info needed. scott from wilson contacted me.
BIGGDAWG
Member
Offline
Posts: 1080
Feedback: 100% (33)
Link To This Post
Posted: 7/25/2012 11:20:01 PM
[Last Edit: 7/25/2012 11:20:41 PM by BIGGDAWG]
Hey guys thought i would let you know. i am having CH4D make me a custom trim die in 7.62x40wt for the dillon rt1200 trimmer and they may be making a few extras if you want one let me know and i will forward the information to CH4D
BsChoy
Offline
Posts: 334
Feedback: 100% (9)
Link To This Post
Posted: 7/27/2012 8:36:06 PM
I went out today to shoot the x40 and my newer 6x45 and got some decent results. I did blow some primers but, I think my rounds were seated too long and pressure spiked in the chamber. I have to say I shot some 155 grain Nosler Custom Competition over W296 and the accuracy was fantastic, however, the cycling as suspected was lacking due to the mid length system. Has anyone here tried to cut coils off a buffer spring to reduce tension?? This is strictly a wanting to know question since I like running lighter bullets faster and would need the stock spring length anyway.
LRRPF52
Member
Offline
Posts: 2047
Feedback: 100% (3)
Link To This Post
Posted: 7/30/2012 5:30:36 AM
Have you guys tried any PRI mags to get a longer COAL, and more powder with a little more volume?
advntrjnky
Offline
Posts: 3423
Feedback: 100% (22)
Link To This Post
Posted: 7/30/2012 7:59:31 AM
IMHO any gains would be miniscule and probably within normal shot to shot variation. if you want more powder/ velocity get a 30hrt.

advntrjnky

Originally Posted By LRRPF52:
Have you guys tried any PRI mags to get a longer COAL, and more powder with a little more volume?


BIGGDAWG
Member
Offline
Posts: 1089
Feedback: 100% (33)
Link To This Post
Posted: 7/30/2012 8:02:00 AM
[Last Edit: 7/30/2012 8:05:53 AM by BIGGDAWG]
Originally Posted By LRRPF52:
Have you guys tried any PRI mags to get a longer COAL, and more powder with a little more volume?


i have a PRI but haven't used it for my x40. with the ribs on he PRI you could only get 3- 5 rounds in it before binding. i can only get 5 of my new 6.5 pcc in the PRI before it binds. but they do let you have a 2.31 or so oal.

and with the little amount of powder there wouldn't be much gain. also with my vmax load that is my favorite load, at 2.26 i am already in the lands so i load to 2.245-2.25

BIGGDAWG
Member
Offline
Posts: 1096
Feedback: 100% (33)
Link To This Post
Posted: 8/5/2012 7:34:17 PM
[Last Edit: 8/6/2012 10:08:43 AM by BIGGDAWG]
got to the range again to try the aa2200 with the 125 sierra's

chrono was giving me fits but here is the target. the 28gn load hit 2300fps no signs of pressure yet. don't know how much more powder i can get in the case accuracy is good
was only shooting 2 and 3 round groups cause i was mainly checking for pressure.






and here is my tried and true fire forming load 25.9 grains 1680 with 110 hornady sp at 2425 fps
this was rapid fire from bipod. shooting as fast as i could re aim. 1 shot every 1 second or so.

BsChoy
Offline
Posts: 337
Feedback: 100% (9)
Link To This Post
Posted: 8/6/2012 9:56:50 AM
BIGGDAWG, whats the 2975 number reference?
Page:  / 61