E3 PPC loads

[Mike H]

Despite 6 straight days of 105 degree or hotter temps, I needed to chrono some loads for my new JP GMR-15, 16" barrel.  Today was only 103, plus I had a little shade to work with.  All the info is the average of three 10 round strings.

 

124 RMR bullets

3.3 grains E3  

H 995

L 912

Avg 956

ES 84

SD 23

PF 118  Too slow, no recoil.

 

124 RMR bullets

3.5 grains E3

H 1035

L 985

Avg 1011

ES 54

SD 15

PF 125 Still slow, no recoil, slight improvement.

 

124 RMR bullets

3.7 grains E3

H 1068

L 993

Avg 1040

ES 35

SD 21

PF 129 better, flat shooting, but need some more juice.  

 

I had a  leftover White box of WInchester 124 grain round nose.  

H 1289

L 1218

Avg 1265

ES 71

SD 24

PF 157 too much, sight was bouncing around, definitely not a round or PF I'd go with.

 

I think I'l go up to 3.8-3.9 grains  and see where that puts me.  PF of 135-140  seems like it'd be the sweet spot.  The JP functioned flawlessly, trigger was great.  Perfect weight and length for me.  

 

 

 

[phoenixsomd]

Despite 6 straight days of 105 degree or hotter temps, I needed to chrono some loads for my new JP GMR-15, 16" barrel.  Today was only 103, plus I had a little shade to work with.  All the info is the average of three 10 round strings.
 
124 RMR bullets
3.3 grains E3  
H 995
L 912
Avg 956
ES 84
SD 23
PF 118  Too slow, no recoil.
 
124 RMR bullets
3.5 grains E3
H 1035
L 985
Avg 1011
ES 54
SD 15
PF 125 Still slow, no recoil, slight improvement.
 
124 RMR bullets
3.7 grains E3
H 1068
L 993
Avg 1040
ES 35
SD 21
PF 129 better, flat shooting, but need some more juice.  
 
I had a  leftover White box of WInchester 124 grain round nose.  
H 1289
L 1218
Avg 1265
ES 71
SD 24
PF 157 too much, sight was bouncing around, definitely not a round or PF I'd go with.
 
I think I'l go up to 3.8-3.9 grains  and see where that puts me.  PF of 135-140  seems like it'd be the sweet spot.  The JP functioned flawlessly, trigger was great.  Perfect weight and length for me.  
 
 
 

I run 135g xTreme RN with 2.7g of e3 with avg of 965 FPS - 130PF

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[SCTaylor]

Those seem way slow. My production load with a 125 is 3.8 for ~1060fps


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[phoenixsomd]

Those seem way slow. My production load with a 125 is 3.8 for ~1060fps


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Running the same 135g bullet requires 3.3g of e3 in my SP-01 to make a 130PF

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[SCTaylor]

Running the same 135g bullet requires 3.3g of e3 in my SP-01 to make a 130PF

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I meant his PCC load. Your load is inline with what I’d expect.


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[Mike H]

1 hour ago, SCTaylor said:

Those seem way slow. My production load with a 125 is 3.8 for ~1060fps

Agree, however JP barrels seem to run consistently slow.  I've shot three other JP PCC's.  All have been slower than expected.  

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[Neomet]

Funny how it varies.  I ran a MG 115 JHP on top of 3.9 E3 at 1.132 out of a 14.5 JP and was getting @ 141-143 PF.  

 

[Mike H]

38 minutes ago, Neomet said:

Funny how it varies.  I ran a MG 115 JHP on top of 3.9 E3 at 1.132 out of a 14.5 JP and was getting @ 141-143 PF.  

 

I bet that load is on the money with the shorter barrel and lighter bullet.  I imagine I'll see 135ish with a 3.9grain charge.  Have you run any 147 grain bullets? I haven't had the opportunity to shoot more than a dozen rounds of 147 thru a JP and don't recall a noticeable difference.  I have a old stash of 124 bullets I need to load up before making a new order. 

[Neomet]

Not over a chrono.  Just 95s, 115s and 121s.  I shot some of my buddies' who tried 147s and didn't care for how the carbine ran with them.  Probably still should have chronoed them.

  

[JZELEK]

How would you rate E3 as far as dot bounce, accuracy and cleanliness?

PS How does it compare to the other popular PCC powders like Titegroup, N320 and WSF?

 

Edited July 24, 2018 by JZELEK

[Neomet]

It is my favorite.  Clean at 3.5gr.  Comparable to N320.  Because it is flaky you can see some larger ESs, particularly at very low (under 3.0) charge weights.  Hasn't been an issue for me.  Very good accuracy at 25Y, and minimal dot bounce.  I have a friend who tried TG and at the loads for PCC it was massively dirty in his JP.  Noticeably more than in his pistols.  Of course YMMV.  

[Mike H]

5 hours ago, JZELEK said:

How would you rate E3 as far as dot bounce, accuracy and cleanliness?

PS How does it compare to the other popular PCC powders like Titegroup, N320 and WSF?

 

 

I can't speak to TG and WSF,  but E3 is easy to obtain and cheaper than N320.  I think it burns as clean or cleaner than N320 and accuracy is dead on.   I use it in .40 with Blue bullets and Montana Gold, and actually prefer it over N320 for pistol.  I have a little N320 left and will load up some PCC rounds for comparison.  I just can't see N320 measurably outperforming E3.  Lack of local N320 availability caused me to try E3 and I won't be going back.

[GregJ]

E3 has been good for 45 major, but seems a little dirty in 9 minor (about 135pf) in my SS, CO  and PCC.  Also, the powder may be a little fast for a carbine, though admittedly I have not been able to test a lot of other powders/loads in my PCC to see what works best - maybe this winter. 

 

I just used up all my E3 and will be going back to W231 for everything but 45 major. 

[jtrump]

JP barrels are hard on coated bullets,  my loads from my JP rifle are considerably slower than many of my counterparts running a different barrel.

 

For instance it takes me 4.0g of wsf @ 1.140 to make 137 PF using a 125g coated bullet.    If I were to shoot a JHP it would be even more!

 

I have no experience with E3,  but Titegroup, wsf, wst, autocomp, hs6, n320 in any bullet weight have always been slower in my JP barrel YMMV.