Just Ordered RMR 124grFMJ

[Ruger 15151]

, did you have to special order those? I've got two of them as well for my M&P Core guns and they let you seat out past 1.150 easily. But I didn't have to special order anything for the chamber.

Mine had no problem chambering RN bullets out to 1.150 either. However, I had a Storm Lake Barrel for my Glock and one for my M&P CORE and they had different throat length. I have no idea why the leades weren't the same on both barrels. I prefer to load 125 gr JHPs and I could only load one to 1.040 and the other to 1.075. Therefore, I had them throated which allowed me to be able to load your RM 124 RN bullets out to 1.169 if I want. However, as per bds, I just load RMR 115 gr RN to 1.130 or RMR 124 gr RN to 1.145 or my favorite 125 gr JHPs to 1.120 in all three 9mms I have.

I was just looking to be able to load RN, JHPs, or even FNs out to the same COL in all 3 9mm pistols and have all be approximately .010 off the riffling for consistency.

Hope all that makes sense.

 

[LiveLife]

How do you achieve a .378" taper crimp using the Lee seating die? Mine comes out ~.380". Is there a way to adjust this without affecting the seating depth?

Lee die that is included in the 3 and 4 die set is a combination seating and taper crimp die. 4 die set has the same dies as 3 die set with additional Factory Crimp Die.

I adjust the combination seating and taper crimp die initially with bullet seating stem screwed out until taper crimp comes out to .378" with .3555"-.356" sized bullets (I use .377" taper crimp for .355" sized bullets). Then I adjust the seating stem until desired OAL is reached.

As mentioned in my previous post it's clearing the RMR 115FMJ at 1.165". Thanks for your input and the pictures.

That's great.

BDS, are you happy with the lone wolf barrel? I've heard both good and bad about them.

I have Lone Wolf 40S&W and 40-9 conversion barrels for my Glock 22/23/27. While 40S&W barrels have tightest chambers I have seen, they will snugly chamber .401" sized bullet rounds and freely chamber .400" sized bullet rounds. I love the fact that 40S&W barrels provide full support for case base and minimally expand the brass for effortless resizing and thus longer brass life.

The Lone Wolf 40-9 conversions barrels have comparable chamber dimensions as KKM 40-9 conversion barrel on par with Gen3 Glock 17/19/26 barrels.

Key difference between KKM and Lone Wolf barrels is twist rate. While Lone Wolf 9mm barrels have 1:16 twist rate that is common for aftermarket match barrels, KKM barrel has 1:24 twist rate. In comparison accuracy tests I have done with both barrels, KKM barrel has produced slightly more accurate groups than Lone Wolf barrels with various jacketed and plated bullets and Lone Wolf barrels have produced slightly more accurate groups than factory Glock barrels. With lead bullets, Lone Wolf barrels have produced comparable groups to KKM barrel and both produced significantly more accurate groups than factory Glock barrels.

If you only wanted to spend $100 for Lone Wolf barrels, I would not hesitate to recommend them for casual range practice to match shooting. But is $165 KKM barrel significantly better than $100 Lone Wolf barrel? That may depend on how well your pistol shoots with the barrels and the reason why I got the KKM barrel - to do comparison tests. Both are true drop-in barrels but with my loads, KKM barrel has consistently produced slightly more accurate groups than Lone Wolf barrels to produce 2" shot groups at 25 yards.

I ordered Mako rail mount and 2-7x32mm scope to do more precise 25/50 yard pistol accuracy testing and will post results of range tests comparing KKM and Lone Wolf barrels.

 

[lauderdale]

bump

 

[thomas15]

bump

Why?

 

[LiveLife]

Maybe lauderdale was hoping for an update to my post

I ordered Mako rail mount and 2-7x32mm scope to do more precise 25/50 yard pistol accuracy testing and will post results of range tests comparing KKM and Lone Wolf barrels.

Between late season rains, wife's 60 chicken/9 duckling projects, multiple trips to my parents out of town and staff vacancies at work that prompted extra shifts, I haven't had a chance to do range testing as planned.

My sister's family is visiting this week and I will be building 4 carbines for them so I may finally get to do some shooting when we test the carbines later this week.

 

[Walkalong]

Why?

Why not?

 

[Axis II]

I just ordered 500. I was going to get extremes like i have been shooting but his FMJ are the same price and it supports a small business. Win-win in my book. If they shoot well in my 9mm ill be ordering 1k to go with my 1k brass i got last month from RMR.

 

[lauderdale]

haven't had a chance to do range testing as planned.

Let me start by saying happy 4th and u fellas, you'll have helped me learn more then u will no! bds I understand. Anyway been wearing out jakes/new 124gr.hp's on my 9's short and long coal. . 2 ac units running but god bless! John

 

[lauderdale]

ill be ordering 1k to go

This is my second order of the 124gr. fmj. hp. in house w/longer bullet base as stated and they do very well w/be/86.

 

[thomas15]

Why not?

Ok it took me a while but I finally figured it out. By that I mean the answer to the burning question....."why".

Carry on.

 

[Walkalong]

the answer to the burning question....."why"

Why is there air?

 

[Jonesy814]

Wow! this thread sure got off subject. A post that I bought RMR FMJ bullets turned into an aftermarket barrel discussion

 

[thomas15]

Walkalong, I'm actually a little bit embarrassed to admit that it has taken me over 2 maybe 3 years to figure it out. But right here, between post #29 and #35 it hit me. Two seemingly random thoughts converged at a single point in time and there it was. So simple but it explains most but not everything as It relates to the shopping and bragging habits of handloaders.

But I'm not telling anyone what it is. But here is a hint... If you went to the food store and bought a jar that contained 500 olives just exactly how much of that and previous similar shopping experiences would you take the time to post about on an internet food forum? The answer is nothing because in ordinary conditions people would be thinking "why are you taking the time to write about your olives"? True there are some people that really insist on a particular brand of just about anything, ice cream for example. And yes there is such a thing as cheap olives that have no flavor. So those are a consideration. I had a friend when I was In grade school (in the mid/late 1960s) who actually bragged, and I mean all the time, every day for a whole year about their family owning a Toyota. So I tried for many months to explain it all using the "true believers" concept but that is simply not enough. Sounds insane doesn't it?

 

[thomas15]

Wow! this thread sure got off subject. A post that I bought RMR FMJ bullets turned into an aftermarket barrel discussion

Be Happy my friend, if you had purchased anything other than RMR FMJ then this thread would have had zip in the way of responses. Including this one!

 

[Walkalong]

Wow! this thread sure got off subject.

We've been known to do that from time to time.

 

[Walkalong]

Sounds insane doesn't it?

Sounds like typical human behaviour. Folks who post on forums like to talk about their favorite subject with other like minded people. The fact that someone bought product "X" might be boring to most, but not to aficionados of "X", or things similar to "X".

I was bored one time and posted a pic of the top of my gun safe and asked what other folks had on top of theirs.

 

[thomas15]

Maybe. But it reminds me of the old sneaker commercial for PF Flyers. "They make you run faster and jump higher!". They really do, I mean did. They actually forced me, no matter how hard I tried not to, jump higher.

 

[thomas15]

I was bored one time and posted a pic of the top of my gun safe and asked what other folks had on top of theirs.

I started a thread not too long ago, not sure if it was here I don't think so. Anyway, I literally made up what I thought was the most ridiculous question I could think of. I got a number of well reasoned responses but no one asked if I had been hittin the ole bottle or on leave from the ward. Most I guess are too polite.

So I figure that if I do it, others probably do it as well.

 

[LiveLife]

Last year I bought 1000 of the RMR Hardcore Match heavy plated 124 gr bullets and ... I ordered the new 124 gr FMJ now offered by RMR ... Have bought cast 158 gr as well as some plated 100 gr for 380 from RMR in the past and like their bullets

A post that I bought RMR FMJ bullets turned into an aftermarket barrel discussion

Sorry for hijacking the thread from the OP.

Would it help to mention that aftermarket barrels will be tested with RMR bullets?

 

[Axis II]

another hijack-

What OAL are you guys using for 12gr FMJ from RMR? I'm using hp-38 with mixed cases.

also, how hot are you pushing them? just wondering how high i can go in search of accuracy. i know extremes and berrys you have to keep it mild.

 

[thomas15]

This thread is brought to you by the letters M and R. But to answer your question you can really push them 12g RMRs faster.

another hijack-

What OAL are you guys using for 12gr FMJ from RMR? I'm using hp-38 with mixed cases.

also, how hot are you pushing them? just wondering how high i can go in search of accuracy. i know extremes and berrys you have to keep it mild.

 

[LiveLife]

What OAL are you guys using for [124 gr] FMJ from RMR?

For initial powder work up, longest working OAL (around 1.150"-1.160") without compressing the powder charge from max case fill calculations.

For greater accuracy, incrementally decreased by .005" down to 1.120" without compressing powder charge - https://www.thehighroad.org/index.php?threads/just-ordered-rmr-124grfmj.821039/#post-10545905

I'm using hp-38 with mixed cases ... how hot are you pushing them? just wondering how high i can go in search of accuracy. i know extremes and berrys you have to keep it mild.

Me too.

With 124 gr FMJ, I am using 4.3 gr for .355"+ sized bullets at shorter OAL and 4.4 gr for .355" sized bullets at longer OAL - https://www.thehighroad.org/index.p...re-sized-the-same.818806/page-2#post-10567453

 

[lauderdale]

Look im sorry hope I didn't mix things up to much (Joneys814). ?

But is $165 KKM barrel significantly better than $100 Lone Wolf barrel? That may depend on how well your pistol shoots with the barrels and the reason why I got the KKM barrel - to do comparison tests. Both are true drop-in barrels but with my loads, KKM barrel has consistently produced slightly more accurate groups than Lone Wolf barrels to produce 2" shot groups at 25 yards.

Looking back on my notes think I might change things up w/my 40 to 9 wolf conv. b. ? Or keep trying different b. profile combinations w/ /powder choices. Iam wrapped up in rmr rounds as that's what works well for me by choice. I have hundreds of hornd./extremes/mbc and so on. god bless. I will start new thread need b. John

 

[LiveLife]

lauderdale, I will post my KKM/Lone Wolf conversion barrel comparison results in a different thread to not hijack this thread.

 

[lauderdale]

cfe pistol is what I used for a very good load w/ the 124gr. fmj/rn rmr's. I don't comp. shoot I shoot every day for fun. and love 2 learn! I have your notes in frount of me BDS! Hey thanks all!