So what are your loads for the new RMR 115 FMJ?

[cali_blues]

I've been loading plated and coated, and have several pet loads, but this is my first time playing with jacketed.

Here is some chrono data from a few of my favorites so far. Out of a CZ P09 4.5", trail mix brass, S&B primers, using a magnetospeed (muzzle velocity):

RMR 115 FMJ
BE86 5.7gr
1.140 OAL
Shots: 5
Max : 1204
Min : 1182
ES : 22
Avg : 1195
SD : 8

RMR 115 FMJ
True Blue 6.0gr
1.140 OAL
Shots: 10
Max : 1148
Min : 1122
ES : 26
Avg : 1136
SD : 8

RMR 115 FMJ
VV N320 4.5gr
1.135 OAL
Shots: 10
Max : 1118
Min : 1074
ES : 44
Avg : 1100
SD : 15

The BE86 load is hot,

The True Blue loads were great, I have always appreciated that powder, but it seems to really shine with this bullet. I will definitely be loading more.

The N320 workup surprised me, it has become my favorite powder for perfect, soft, 130 PF, single digit SD loads, but in this case the 4.5gr load started to see an increase in ES/SD and very slight primer cratering, so I stopped there. I might give it another try, but I think this powder is just better with heavier bullets.

I may not have been crimping enough. My press was set up for coated/plated zero crimp, which usually runs around .380. But the first loads I tested had scorching down one side of the case, which I assume is because it wasn't sealing well enough? In subsequent loads I tightened the crimp to .378-ish, and reduced OAL .005, and it seemed to help a bit. I may try reducing the bell at the powder drop station as well.

I didn't test much for accuracy. Offhand at 15 yards, they were all excellent by my standards, with the exception of a 5.9gr max load of BE86, which was downright violent and produced terrible groups.

So what loads have you been liking? Feel free to share any 115 FMJ loads in general.

As always, start low and work up towards proven load data from trusted sources.

 

[ColoradoShooter77]

I've got an order of RMR 115's on the way and I'll be using 5.6 grains CFE-Pistol. This load has worked really well with plated 115's.

 

[longdayjake]

For insurance reasons, I can't give you actual data yet but I can tell you that we got good groups with the following powders:

Bullseye
unique
Win 231/hp38
titegroup

Awesome groups with some auto-comp that we bought in a clearance sale for $11 per lb. Actually produced the best SD of the powders we tested.

Had a couple of customers tell us they are titegroup guys and they are getting amazing groups through their competition guns. This bullet is taking off in the competition market and it is a good thing we have two more machines on the way in September or we might have a hard time keeping up.

I intend to keep the prices lower for as long as I can. Copper has gone up about 20 cents per lb and lead has gone up as well. I wish I had more money when it was lower and I would have bought much more.

 

[Toprudder]

Cali-Blues,

I wish I had found this thread earlier, I just worked up my first test loads this morning with the 115 FMJ.

One of the guns I have, that I plunk tested this morning, is a CZ P-09. At 1.143" the bullet was touching the lands in my barrel. I noticed you seated yours to 1.140", that would not leave much room in mine. I wonder if you would still have the same pressure signs if you seated a little shorter.

I have one other gun with a tight chamber - a Witness Match. That one plunked at 1.133", so it is a little tighter than the P-09 in this case. I decided to seat mine at 1.115" as I like to have close to 0.020" jump.

My first test batch is BE86, but I have some N-320 I want to try out in 9mm, may as well do it. My BE86 batch is from 5.2 - 6.0. From your results, I may not go past 5.6 or 5.8 and may end up pulling some bullets when I get back. I'm looking at keeping the velocity 1200 or less.

 

[Dudedog]

Can't wait for the 124s RMR is talking about producing.

Side note-I find Alliants BE86 data in 9mm seems to run hot for me,
5gr BE86 with a RMR 124 plated is 1100fps, don't know that I would want to go to their MAX of 5.8gr. (of course bullet, OAL, etc matters, 5.8 is the MAX with the bullet and OAL gun/barrel they used)

 

[Hangingrock]

With 124Gr & 115Gr FMJ bullets in 9mm-Luger I use 5.0Grs of AutoComp with mixed head-stamp cases and Winchester or CCI primers. I batch load a thousand at a time on a Dillon SDB.

 

[Mike44]

I switched from 9mm plated to RMR 115 gr. FMJ

I have loaded and shot about 800 of the RMR 9MM FMJ 115 gr. bullets so far. I am using CFE-Pistol 5.5 gr. and COL of 1.130", CCI and S&B primers, mixed headstamp range brass. These have worked perfectly in a Glock 19, a S&W Shield, and a Walther PPQ. I don't have a chronograph, so I can only say that they have worked fine for me with minimal brass charring, and no problem cycling. Switching from the plated bullets I changed the following: reset the seating die due to different bullet shape, made the flare larger as the RMR bullets have a sharper back edge, increased the crimp so that the cartridges would plunk easily in the PPQ barrel, and increased the load from 5.3 to 5.5 gr. I have since ordered and received another 2,000 which did not make the mailman happy!

 

[Phlier]

I have loaded and shot about 800 of the RMR 9MM FMJ 115 gr. bullets so far. I am using CFE-Pistol 5.5 gr. and COL of 1.130", CCI and S&B primers, mixed headstamp range brass. These have worked perfectly in a Glock 19, a S&W Shield, and a Walther PPQ. I don't have a chronograph, so I can only say that they have worked fine for me with minimal brass charring, and no problem cycling. Switching from the plated bullets I changed the following: reset the seating die due to different bullet shape, made the flare larger as the RMR bullets have a sharper back edge, increased the crimp so that the cartridges would plunk easily in the PPQ barrel, and increased the load from 5.3 to 5.5 gr. I have since ordered and received another 2,000 which did not make the mailman happy!

I'm using a very similar load:

CFE-Pistol 5.2gr
CCI Small Pistol Primer
Mixed Headstamps
OAL 1.125

No malfunctions yet out of 700 fired through a S&W CORE 9L and my son's CZ 75 P-01.

The palm chrono says it's a fairly light load. Spent primers and cases seem to agree.

I just got a chrono last week, but need to go to the local range when no one else is using it to avoid the whole "we need a cold range for a minute" scenario. I'm hoping to chrono a few different 115gr RMR FMJ loads all using CFE-Pistol "real soon now."

Please do not consider the load information I have given above as safe. Do your own research, using load information from reputable sources.

 

[Dudedog]

My mail person probably hates packages from RMR.

I always leave a note in my mailbox the next day saying thanks.

 

[Slamfire]

My Beretta pistol is a Bullseye Competition pistol built up by Gunsmith David Sams. It is an early version with a Bar-Sto barrel and the barrel is not removable from the slide. David Sams recommended a 115 grain FMj with 6.0 grs Power Pistol but I have tested a number of different loads. Recently I had David Sams install the mount for the Ultra Dot optical sight and I went out and tested some loads this week. As a reference I included factory ammunition and velocity data with RMR 115 grain bullets, and Hornady 115 FMJ and 115 grain hollow point.

I seated these bullet long, they are 1.150” which is just at magazine length. Manuals recommend different lengths, I have no particular reason for the long depth other than the FMJ bullets feed and worked. The 115 gr HP did not! I also tested a load recommended by a Bullseye shooting bud: 4.2 grs Titegroup with a 115 FMJ. I tested this load with the RMR bullets and found that point of impact between a 4.2 gr Titegroup load and a 6.0 gr Power Pistol load was considerable at 50 yards. The Power Point load required about 4 to 6 MOA more elevation to be centered. I don't know if I can push the 115 gr RMR bullet safely to a velocity of 1150 to 1200 fps with Titegroup. These are my desired velocities for a 50 yard load, based on advice from friends. Power Pistol will push the RMR bullet to this velocity range.

It will take more time and more Bullseye matches before I have a firm opinion of the accuracy of RMR plated bullets and Power Pistol. The limited testing I did at 25 yards gave good accuracy, but I was shooting offhand, not using a Ransom rest.

[SIZE="3"][b] M92 FS Beretta[/b] Bar Sto Barrel		
					
					
			
115 Full Metal Case Master Factory Ammo 		
	20-Jun-09	T = 90 °F			
					
Ave Vel =1180	 			
Std Dev =10.19				
ES =	33.27				
High =	1197				
Low =	1167				
N =	8				
					
					
115 gr RMR Plated RN 6.0 grs Power Pistol lot 3-16 WSP OAL 1.150"  Mag Length crimp 0.375"	

15-Sep-16	T = 94 °F			
					
Ave Vel =1175				
Std Dev =22				
ES =	81				
Low =	1130				
High =	1211				
N =	20				 
					
Very accurate				
					
					
115 gr XTP Hornady HP 0.355" 6.0 grs Power Pistol lot 3-16 WSP OAL 1.10" crimp 0.375"

15-Sep-16	T = 95 °F				
					
Ave Vel =1161	 	 
Std Dev =54	 	 	 
ES =	197	 	 	 
Low =	1111	 	 	 
High =	1308	 	 	 
N =	11				 
					
Very accurate but rounds would not feed, jam on barrel ramp. 	
One seated very deep produced 1247 fps, not included in data	
					
					
					
115 gr FMJ Hornady 0.355" 6.0 grs Power Pistol lot 3-16 WSP OAL 1.15" crimp 0.375" 

15-Sep-16	T = 95 °F				
					
Ave Vel =1187			 	 
Std Dev =16			 	 
ES =	58			 	 
Low =	1157			 	 
High =	1215			 	 
N =	9	 			
					
v accurate. 					
					
					
115 gr RMR Plated RN 4.2 grs Titegroup lot 4-16 WSP OAL 1.150"  Mag Length crimp 0.375"	

15-Sep-16	T = 95 °F			
					
Ave Vel =1092				
Std Dev =20				
ES =	73				
Low =	1065				
High =	1138				
N =	16				
					
very accurate					
					
115 gr FMJ Hornady 0.355" 4.2 grs Titegroup lot 4-16 WSP OAL 1.15" 	crimp 0.375"

15-Sep-16	T = 95 °F				
					
Ave Vel =1108			 	 
Std Dev =26			 	 
ES =	75			 	 
Low =	1074			 	 
High =	1149			 	 
N =	9	 			
							
					
				
[/URL[/SIZE]

 

[au_prospector]

So Slamfire that barrel has a bulb crimped to the muzzle that acts as a bushing increasing accuracy?

 

[Slamfire]

So Slamfire that barrel has a bulb crimped to the muzzle that acts as a bushing increasing accuracy?

That is how it is done. The muzzle flare positively locates the muzzle at the end of the slide. David Sam's recommendation is to apply grease there, which was removed before the picture.

Let me mention a limitation with this pistol, the sight has to be taken off to remove the slide! When I went to the range and chronographed those loads above, towards the end I found the mount had gotten loose which explained wild shots I had on target. When I figured that out I tightened everything back down. I took this pistol to a 2700 Bullseye Match and the mount screws had blue locktite on them. Made it difficult to break them free, but they stayed tight. Now I am wondering how long I can shoot this pistol without a field strip.

 

[longdayjake]

Been shooting a lot of autocomp loads at 5.5 grains. Accuracy is good but it's dirty. Not sure I like autocomp. Got it for $12 a lb so I've got a few lbs to get through.