RMR 223 69gr. ?

Now were back to using the one you have most available. They are both great powders and I would wager 8208xbr and ar comp would also be amazing if you run. Across them.

Got my 69 rmr bullets in the mail today, less than two weeks from order to delivery. Very pleased. I anticipated much longer, jake must be pushing hard. Great job guys.

When I locate enough powder to justify it, I’d like to try these. They’re cheap enough I could use them to replace my 55 grain load, and hopefully accurate enough to replace my 75 grain load. All my powder is spoken for now though.

Bought 500 of these for my heavy 20” AR. The only powder I have enough of is CFE223, so I set out to try to find a load my rifle likes. I’ve noticed with this powder I don’t get the normal pressure signs like with other powders (TAC, H335, WC846) Most comments on this powder state that you need to push it towards max to get the best accuracy but that hasn’t been the case with my rifle.
Loaded 25.2, 25.5, 25.8 (Hodgdon’s max), and 26.1. Shot 2- .75 inch groups with the 25.2 load at 2800 fps and SD 7! I’ll take it! Accuracy degraded as I climbed the ladder, but SD stayed good throughout.
Notes from 5 shot tests: 20” BCM 5.56 NM, LC, 7 1/2, 2.260
25.2- 2803 fps sd7
25.5- 2839 sd6
25.8- 2878 sd10
Even with these velocities, the brass was showing no signs of pressure. Primers were round, no ejector smears. I shot the 26.1 from my 16” B/A and the velocity fell way off. 2667fps but still no pressure signs. SD14

kmw1954 said:

I have been playing around with this bullet using Ramshot TAC and Varget. Have found a nice load to further develop with the TAC. The Varget for me just hasn't worked out... I have a couple new loads with a 62gr and BL-C(2), after I shoot those I will be trying that powder with this 69gr bullet. From there I also have some 2460 powder and now some Hodgdon Benchmark, only the primer count is getting low.

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KMW, I realize that this post is a few months old, but I was wondering if you have been able to shoot anymore of the RMR 69gr with Tac and Benchmark? If so what was the OAL's that you found gave you the best accuracy? Just curious. Thanks

got an order in on Thursday- loaded up some samples over a few different powders to see what it liked- and since I had open canisters of the powders..
69 Grain over 23 grains of H322 (middle of data)
69 Grain over 22 grains of H335 (middle of data)
69 Grain over 25 grains of Varget (middle of data)
all at 2.26" to fit the Gen 2 magpuls
all 3 groups of 5 shots were under an inch at 100 yards- in the .8" area...
seems to be a nice tolerant projectile...I think I'm going to work up the H322 first (the 80 grain SMK loves this powder for me)

GoldieMI said:

got an order in on Thursday- loaded up some samples over a few different powders to see what it liked- and since I had open canisters of the powders..
69 Grain over 23 grains of H322 (middle of data)
69 Grain over 22 grains of H335 (middle of data)
69 Grain over 25 grains of Varget (middle of data)
all at 2.26" to fit the Gen 2 magpuls
all 3 groups of 5 shots were under an inch at 100 yards- in the .8" area...
seems to be a nice tolerant projectile...I think I'm going to work up the H322 first (the 80 grain SMK loves this powder for me)

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You may want to try a shorter OAL, 2.250"-2.240" and see if your groups tighten up. I'm using a different powder than you but the ogive distance is shorter a little shorter using the RMR vs SMK. Shortening the OAL reduced my group size.

Blue68f100 said:

You may want to try a shorter OAL, 2.250"-2.240" and see if your groups tighten up. I'm using a different powder than you but the ogive distance is shorter a little shorter using the RMR vs SMK. Shortening the OAL reduced my group size.

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Do you have that data as a jump number vise an oal number. Shooting in a different platform and trying to extrapolate usable data. Please and thank you

I used a comparator to measure the difference when I started using them. The difference was very minor, but during my load workup I stepped down the OAL and my groups improved. The BT base is slightly different than the SMK. I have the data out in my shop, but will be out of pocket for a few days before I can look it up.

Blue68f100 said:

I used a comparator to measure the difference when I started using them. The difference was very minor, but during my load workup I stepped down the OAL and my groups improved. The BT base is slightly different than the SMK. I have the data out in my shop, but will be out of pocket for a few days before I can look it up.

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I'm guessing they are very jump tolerant.

Blue68f100 said:

You may want to try a shorter OAL, 2.250"-2.240" and see if your groups tighten up. I'm using a different powder than you but the ogive distance is shorter a little shorter using the RMR vs SMK. Shortening the OAL reduced my group size.

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that's the plan, along with powder charges...just wanted to see how my barrel liked them to start. I'll be doing a ladder with H322 and then doing a depth test to tune it.
the H322 was a nice tight cluster, the H335 had some horizontal stringing, while Varget had Vertical stringing...all of course at mid level loads with an arbitrary length. I'll get it dialed in on H322 and then workup the H335 and Varget loads as well.
more to come over the winter months with this project.

kmw1954 said:

My two Savage's have very long leade's and I could load the out long enough that they would probably fall out of the case with very little neck tension. As previously stated In have loaded these from 2.235" to 2.265" and seen little to no difference in group size in these guns. But they are proving to be very impressive and consistent performers and at a very reasonable cost. To the point that I will be shooting these bullets during our range's winter rifle league.

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You and I are playing exactly the same game except I'm running a shilen barrel on my savage. My plan is to figure out a reasonable max length and run them with tac. I have a big pile of LC brass that I plan on dedicating to this bullet and building a pile.

kmw1954 said:

AJC1 another little impromptu test I had done was with 4 different headstamps, all prepared the same way at the same time with the intention of determining if the brass had an effect on the shots when all were also loaded at the same time with the same components. Results were Yes it does have an effect. Actually a measurable effect. The 4 headstamps used were LC, PMC, GFL and Norma... Just a little hint, everything I am loading today is PMC and that is only because I cannot obtain enough Norma.

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I've been looking for some pickup norma but it appears most know it's good stuff and dont leave it laying around. I have some lapua but I intend to try some others just to get a feel. Of all the bags of brass I have pmc is not one I have any of....

kmw1954 said:

AJC1 another little impromptu test I had done was with 4 different headstamps, all prepared the same way at the same time with the intention of determining if the brass had an effect on the shots when all were also loaded at the same time with the same components. Results were Yes it does have an effect. Actually a measurable effect. The 4 headstamps used were LC, PMC, GFL and Norma... Just a little hint, everything I am loading today is PMC and that is only because I cannot obtain enough Norma.

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With just a trim, Hornady was my best once fired. After that it was PMC.
With a light neck turn, all brass was equal for me except Hornady took .2 grains more to get the same velocity.
I did a lot of brass processing tests when my 3 year old was an infant. Because I was stuck in the house.

AJC1 said:

I'm guessing they are very jump tolerant.

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My experience has been, when used in my VLD-chambered Shilen, everything loaded to 2.260, I was unable to get the same accuracy w/69 RMR's as I was with SMK 69's or H 75 BTHP M's.

Once I stretched out the RMR's to 2.320, my groups closed up quite nicely.

About the only conclusion I can make from all of this is that if the RMR's aren't shooting to your liking, try adjusting your OAL.

As always, YMMV

Skgreen said:

My experience has been, when used in my VLD-chambered Shilen, everything loaded to 2.260, I was unable to get the same accuracy w/69 RMR's as I was with SMK 69's or H 75 BTHP M's.

Once I stretched out the RMR's to 2.320, my groups closed up quite nicely.

About the only conclusion I can make from all of this is that if the RMR's aren't shooting to your liking, try adjusting your OAL.

As always, YMMV

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I still haven't opened the bag of these yet. The winter shut down my outside shooting and my 308 test loads are filling every piece of brass I have in a batch. I'll most likely find a load with tac as it is still reasonably available. I also plan on running them long in a shilen barrel so that's great information.