Range Report JRC Carbine 9mm with Bullseye

[LeftyTSGC]

Was able to get to the range today to test my reloads using Bullseye.

Posted this the other day: "I loaded up some 9mm to test using Bullseye Powder in my JRC Carbine.
I have been using BE-86, while a great powder, it burns slow and causes a lot of soot in the JRC due to operating as a blowback system. I thought I would load up some test rounds with a faster powder to compare how they shoot. I loaded at 3.9, 4.0, 4.1, 4.2, and 4.3gn. have 20 rounds of each to test fire, Chrono, and check for accuracy."

All shots were with JRC Carbine, Speer Brass, CCISPP, 84 and Sunny. Chrono was set at 5 yds from muzzle. Bench supported shots. I only shot 10 of each, will take the other 10 out later to shoot with my Sig P320 for comparison.

Bullet /Powder/Powder load/ OAL/ number of rounds and FPS/ ES/ SD
115gn RMR FMJ RN Bullseye 3.9 1.09 10/1212 15 59
115gn RMR FMJ RN Bullseye 4 1.09 10/1235 16 56
115gn RMR FMJ RN Bullseye 4.1 1.09 10/1248 8 25
115gn RMR FMJ RN Bullseye 4.2 1.09 10/1268 16 51
115gn RMR FMJ RN Bullseye 4.3 1.09 10/1284 16 47

124gn RMR MPR BE-86 5.2 1.09 3/1271 22 41 (this was the control data)

So speaking of clean brass, the 4.3gn load of Bullseye was the cleanest looking, still not as clean compared to pistol brass but relative clean compared to the BE-86 soot. Also noticed the Carbine was not as dirty after the 50 rounds.

The 4.1 and 4.3 gave best groups at 25 yards I got 1 inch groups for all 10 shots. Yes I have a Red Dot sight that I used. If I stay with Bullseye I will most likely reload with the 4.3gn load.

leftystgc

 

[Okcafe86]

According to my notes, I settled on 4.2 gn of Bullseye for a similar 115gn pill.

 

[viagrow]

Was able to get to the range today to test my reloads using Bullseye.

Posted this the other day: "I loaded up some 9mm to test using Bullseye Powder in my JRC Carbine.
I have been using BE-86, while a great powder, it burns slow and causes a lot of soot in the JRC due to operating as a blowback system. I thought I would load up some test rounds with a faster powder to compare how they shoot. I loaded at 3.9, 4.0, 4.1, 4.2, and 4.3gn. have 20 rounds of each to test fire, Chrono, and check for accuracy."

All shots were with JRC Carbine, Speer Brass, CCISPP, 84 and Sunny. Chrono was set at 5 yds from muzzle. Bench supported shots. I only shot 10 of each, will take the other 10 out later to shoot with my Sig P320 for comparison.

Bullet /Powder/Powder load/ OAL/ number of rounds and FPS/ ES/ SD
115gn RMR FMJ RN Bullseye 3.9 1.09 10/1212 15 59
115gn RMR FMJ RN Bullseye 4 1.09 10/1235 16 56
115gn RMR FMJ RN Bullseye 4.1 1.09 10/1248 8 25
115gn RMR FMJ RN Bullseye 4.2 1.09 10/1268 16 51
115gn RMR FMJ RN Bullseye 4.3 1.09 10/1284 16 47

124gn RMR MPR BE-86 5.2 1.09 3/1271 22 41 (this was the control data)

So speaking of clean brass, the 4.3gn load of Bullseye was the cleanest looking, still not as clean compared to pistol brass but relative clean compared to the BE-86 soot. Also noticed the Carbine was not as dirty after the 50 rounds.

The 4.1 and 4.3 gave best groups at 25 yards I got 1 inch groups for all 10 shots. Yes I have a Red Dot sight that I used. If I stay with Bullseye I will most likely reload with the 4.3gn load.

leftystgc

Do you prefer Bullseye over TiteGroup?

 

[LeftyTSGC]

Do you prefer Bullseye over TiteGroup?

I have not tried TiteGroup, I only found Bullseye at my local store. They both appear identical on the burn rate chart so would assume they perform the same. Maybe someone else can comment on TiteGroup.

leftytsgc

 

[Walkalong]

I have found the same thing in my 9MM blowback AR, assuming similar pressure levels, the faster powders soot up the cases less, but not as clean as being fired in a locked breech pistol.

 

[LeftyTSGC]

Was able to get to the range today to test my reloads using Bullseye.

Posted this the other day: "I loaded up some 9mm to test using Bullseye Powder in my JRC Carbine.
I have been using BE-86, while a great powder, it burns slow and causes a lot of soot in the JRC due to operating as a blowback system. I thought I would load up some test rounds with a faster powder to compare how they shoot. I loaded at 3.9, 4.0, 4.1, 4.2, and 4.3gn. have 20 rounds of each to test fire, Chrono, and check for accuracy."

All shots were with JRC Carbine, Speer Brass, CCISPP, 84 and Sunny. Chrono was set at 5 yds from muzzle. Bench supported shots. I only shot 10 of each, will take the other 10 out later to shoot with my Sig P320 for comparison.

Bullet /Powder/Powder load/ OAL/ number of rounds and FPS/ ES/ SD
115gn RMR FMJ RN Bullseye 3.9 1.09 10/1212 15 59
115gn RMR FMJ RN Bullseye 4 1.09 10/1235 16 56
115gn RMR FMJ RN Bullseye 4.1 1.09 10/1248 8 25
115gn RMR FMJ RN Bullseye 4.2 1.09 10/1268 16 51
115gn RMR FMJ RN Bullseye 4.3 1.09 10/1284 16 47

124gn RMR MPR BE-86 5.2 1.09 3/1271 22 41 (this was the control data)

So speaking of clean brass, the 4.3gn load of Bullseye was the cleanest looking, still not as clean compared to pistol brass but relative clean compared to the BE-86 soot. Also noticed the Carbine was not as dirty after the 50 rounds.

The 4.1 and 4.3 gave best groups at 25 yards I got 1 inch groups for all 10 shots. Yes I have a Red Dot sight that I used. If I stay with Bullseye I will most likely reload with the 4.3gn load.

leftystgc

So I went back to the range today to compare the above data to shooting them through my Sig P320C. basically same exact set up.

115gn RMR FMJ RN Bullseye 3.9 1.09 10/1020 13 40
115gn RMR FMJ RN Bullseye 4 1.09 10/1028 10 30
115gn RMR FMJ RN Bullseye 4.1 1.09 10/1049 11 40
115gn RMR FMJ RN Bullseye 4.2 1.09 10/1060 10 34
115gn RMR FMJ RN Bullseye 4.3 1.09 10/1081 12 39
124gn RMR FMJ RN BE-86 5.1 1.13 5/1048 7 18 control group

Basically each load FPS was exactly 200 +/- 8 fps slower. I did not compare shot groups because I don't plan on using Bullseye for 9mm. I did not like the way it shot.

Leftytsgc

 

[748]

I was going to use something like AA7 for 9mm pistol carbine loads.
Any one try AA propellants?

 

[Walkalong]

AA #5 and AA #7 will both work well for full power 9MM loads. #7 will get the most from the longer barrel. Start getting too hot and you'll beat up on the carbine more.