RMR 135 gr Flat Point Match Winners

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Ruger 15151

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I have been getting great results for 9mm 125gr conical JHP Zeros with Sport Pistol and BE-86. I'm loading around a 130 PF. However, I'd like to test some loads using RMRs 135gr FPs to see if I can gain even more accuracy. Anyone currently loading this bullet? did you see much improvement in accuracy over 124/125 gr? Or did it just help you to get to a Minor Power factor more easily?
 
The guy to ask would be Jake. I’m pretty sure this is a brand spanking new offering from RmR so I imagine any experience with this particular bullet is close to nil. Although I’m sure in a weeks time we will start to hear from some people.
 
I was wondering if anybody had accumulated any load data for this.

I've been shooting the RMR 147 FP heavy match winner with 3.5gr Prima V out of a 320X5 and getting around 900 fps with a 132 power factor.

That works great but I thought I'd change things up a bit and try the 135s.

I'd like about the same PF. Thinking a tenth or two more would be a good starting place?
 
It's not very scientific, but I've had good results splitting the difference between the charge weights you would run for 124gr. and 147 when using 135s.
 
I think that might be the way I would go if I had any 124 load data for that powder.

I'll poke around and see what I can find.
 
I'm thinking 5 grains of BE86 is a good place.
5.0gr. shoots great and does ~1100fps with the plated 135s I've been running. Probably only need 4.6-4.7 for his target power factor. 3.9gr of Sport Pistol makes minor easily in 4" guns with my 135 (Xtreme 9-135HP).
 
I've been shooting the RMR 147 FP heavy match winner with 3.5gr Prima V out of a 320X5 and getting around 900 fps with a 132 power factor.
Prima V for pistol, really?

I thought Vectan Prima V as mostly shotgun powder and considered Vectan AS at comparable burn rate for pistol powder (AS comparable to Titegroup in burn rate) - https://www.thehighroad.org/index.p...-different-labels.797388/page-6#post-10806193

Even Vectan states AS was developed for pistol - https://www.ballisticproducts.com/images/LD12Vectan.pdf

UPDATE - A quick check on Brian Enos forum indeed shows people using Prima V as "dirty" Titegroup but burning cooler. Wonder why they didn't try AS ... as there's pistol load data for AS - https://www.grafs.com/uploads/technical-resource-pdf-file/20.pdf

I have Vectan AS on hand and could load up some with RMR 135 gr FP MW for tomorrow's testing. Let me know.

FYI, I also have Vectan Ba 9 (comparable to Unique burn rate) and my testing with Vectan Ba 9 1/2 (comparable to Red Dot burn rate) - https://www.thehighroad.org/index.p...ectan-ba-9-5-ba-9.817796/page-2#post-10519646

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9mm ... RMRs 135gr FP ... Sport Pistol and BE-86 ... around 130 PF.

I'd like to test some loads ... to see if I can gain even more accuracy ... over 124/125 gr? Or did it just help you to get to a Minor Power factor more easily
I do believe Jake added the 135 gr FP Match Winner for good compromise between 124 gr and 147 gr bullets in better meeting power factor while retaining the "softer" felt recoil of 147 gr bullet.
 
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I've had good results with Extreme plated 135gr HP and FPRN with BE-86. Depending on the COL my charge is 4.7-5.1gr, I worked these up in the winter so I may need to back off in warmer weather.
 
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I do the "my targets .com" thing and do a mod. in the pdf to include load and chrono data. I will add weather now to the mod.
 
Prima V for pistol, really?

Yeah, it was the "new coolness" for awhile in the action pistol (USPSA,IDPA,etc) world.
It doesn't do anything that N320, Tightgroup, Sport Pistol or any other similar 9mm minor powders won't do just as well.

The supply comes and goes and there are questions about burn rate from one batch to the next.

The individual grains vary in size quite a bit. Although the spread and deviation numbers are excellent I have a nagging suspicion that the velocity wanders a bit as the individual grains find their level in the hopper.
No hard data on that at all and won't be looking into it in greater detail...once my last kilo is gone I won't be working with it any longer.
 
Sounds like it makes Sport Pistol look really good, as it reliably produces single-digit SDs in 9mm and is consistent and meters great.
 
Sounds like it makes Sport Pistol look really good, as it reliably produces single-digit SDs in 9mm and is consistent and meters great.

Yes, I have used Sport Pistol prior to my Prima V experiment and will be going back to it. I have 8# waiting for me as soon as the Prima V is gone.

I could ask the same question with respect to Sport Pistol: Any load suggestions with respect to RMR 135 FN HMW to make USPSA minor power factor with a reasonable fudge factor?
 
As I mentioned above 3.9gr. does it with my 135gr. plated bullet. Depending on your OAL you might need a bit less or more.
 
As I mentioned above 3.9gr. does it with my 135gr. plated bullet. Depending on your OAL you might need a bit less or more.

Yes you did and I blew right by it. Thanks for the feedback. I was going to guess that might be where I ended up but was reluctant to start out there. I'll start at 3.7 and take it from there.

Thanks!
 
No worries. Be sure to post your results. We can always use more Sport Pistol and (especially) 135gr. 9mm data points to refer to.
 
Finally was able to chrono the RMR 135 FN MW with Sport Pistol.

This particular run only recorded 6 shots out of 10 but the data agrees very well with several other runs taken immediately before and after.

Decent SD and spread.

RMR 135 FN MW
4.0 grains Alliant Sport Pistol
OAL 1.130
Shots: 6
Average: 969 ft/s
SD: 7 ft/s
Min: 957 ft/s
Max: 980 ft/s
Spread: 23 ft/s
Power Factor Average: 130
Power Factor Low: 129
Power Factor High: 132
Weight: 135.0 gr.
 
That works great but I thought I'd change things up a bit and try the 135s.

I do believe Jake added the 135 gr FP Match Winner for good compromise between 124 gr and 147 gr bullets in better meeting power factor while retaining the "softer" felt recoil of 147 gr bullet.

I started using the RMR 147 gr Match Winner this year with Sport Pistol and love it.

Curious as to why folks would want to go with the 135's vs. the 147's? I see @bds say that it is a good compromise to better meet PF requirements. Can you expand on that a bit? Is it due to the lower powder weight requirements and that small variations could drop you below the necessary PF?

Thanks.
 
I started using the RMR 147 gr Match Winner this year with Sport Pistol and love it.

Curious as to why folks would want to go with the 135's vs. the 147's? I see @bds say that it is a good compromise to better meet PF requirements. Can you expand on that a bit? Is it due to the lower powder weight requirements and that small variations could drop you below the necessary PF?

Thanks.

That could be I guess. However in my experience most guys trying to meet a PF requirement have a load with a large enough fudge factor that failing chrono isn't an issue regardless of their bullet weight.
If you are loading so close to the PF floor that 0.01 of a grain is going to fail you at chrono then you are playing with fire.

I have not tried a back-to-back test comparing the RMR 147 with the 135.
I was perfectly satisfied with the 147 and only tried the 135 to satisfy my curiosity.

My very subjective gut reaction is that they felt very similar when trying to compare them mentally across two different range sessions but that really isn't worth much.

Accuracy...I haven't done any bench rested accuracy testing; just practicing USPSA style action pistol shooting.
So given that, maybe the slightest edge to the 135 but again that is just a gut feel and is very likely gun dependent anyway.

I suspect if you like one then you will like the other. Just a question of whether one or the other shoots better in your particular gun.

I'm going to stick with the 135 for the time being but if all I had access to was the 147 then that would work just fine too.
 
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