RMR 124gr hardcore match plated flat nose bullets

[9mmepiphany]

Can I ask you guys a question? Why is there so much love for the flat point over the round nose? I shoot the flat nose simply because we don't sell it as much so I don't have to worry about taking bullets that others would be buying. But is there any other reason to prefer a FP over a RN?

I think people load RN out of habit...it's what they've always done...and the belief that it feeds more reliably (after all the military loads it)

I prefer the FN for several reasons:
1. FN offers more consistent seating due to less variation in nose shape and seating stem cup contour...flat is flat.
2. FN is easier to measure OAL using calipers...don't have to center on the tip of the RN
3. FN allows shorter OAL while maintaining constant case volume
4. Using the Bully Adapter to feed bullets on my LNL, the FN stack straighter in the feed tubes and don't tilt like the RN bullets will...more reliable feeding.
5. Due to the RMR bullet profile, I feel that I"m getting a bit more contact area with the FN than the RN

I usually load my 124gr RN to an OAL of 1.140". When I load my 124gr FN, I compare the lenght of the RN bullet and the FN bullet and subtract the difference from my RN OAL...I'm loading a little less than 1.08" while having the same space for powder in the case

 

[LiveLife]

Can I ask you guys a question? Why is there so much love for the flat point over the round nose? I shoot the flat nose simply because we don't sell it as much so I don't have to worry about taking bullets that others would be buying. But is there any other reason to prefer a FP over a RN?

I'm curious about that also. I like the RN, just bought 3000. I have been loading those to ~1.135 oal, how does this compare to the 1.10 FN length you guys are using?

+1 to what 9mmepiphany posted.

Compared to Round Nose bullet, Flat Nose bullet with same weight :

- Produces longer bullet base and longer the bearing surface that rides the rifling, greater rotational stability in flight

- Shift center of gravity back more towards the bullet base resulting in less wobble (picture taller spinning top vs flatter spinning top of same weight)

- Shorter OAL/COL with same bearing surface-to-start of rifling distance that seats the bullet base deeper for greater neck tension and more consistent chamber pressures

- Allow use of few tenths of grains less powder charge to produce same chamber pressures

 

[cwall64]

Just got my order of 9mm 124 Gr. RMR Hardcore Match Flat Nose Plated (1,000 Ct.) in and wondering if there was another bullet profile that I should base my workups on? I am probably going to use AA #5, #7, Power Pistol, or BE-86 as powder to start with...

 

[Dudedog]

Good resons from 9mmepiphany and BDS.

I have found cones/truncated cones (I would call the 124 RMR HCMFN truncated cones) just seem to shoot better for me.
I think the longer bearing surface helps, for example the RMR230 RN have a shorter "nose" and more bearing surface than some other round nose "ball" 230 bullets, and they shoot really well for me. (better any than other 230 RN i have tried)
I agree with the seating part as well.

And well, ah, hhmm, I'll be honest, I just like the way they look better.

 

[cwall64]

Just got my order of 9mm 124 Gr. RMR Hardcore Match Flat Nose Plated (1,000 Ct.) in and wondering if there was another bullet profile that I should base my workups on? I am probably going to use AA #5, #7, Power Pistol, or BE-86 as powder to start with...

These bullets did very well for me in an USP9 and VP9 was not too bad either. I loaded too low with AA #5 as a trial run. Images is of a 10 shot group from each handgun at 10 yards. Top smaller group is the USP9 (I was getting tired, hot today in Texas).

 

[Dudedog]

Nice shooting cwall64

I know the feeling about the heat...lots of 100+s here in the summer.

I am really happy with them, good bullet, good price, good people to do business with.

 

[AV8TOR]

I just ordered 1k of the flat nose, what seating stem are you using? I am using Lee dies for my 9mm and they only give the universal round nose. I know Lee has a custom service but I can also turn on a lathe. Just wondering if the contact can just be a flat or if it needs the tapered sides as well? I am away from my dies at the moment but if I remember right on the Lee seating stem the diameter is not that large but might have enough stick to put some taper lead in. Thanks

 

[jell-dog]

I just ordered 1k of the flat nose, what seating stem are you using? I am using Lee dies for my 9mm and they only give the universal round nose. I know Lee has a custom service but I can also turn on a lathe. Just wondering if the contact can just be a flat or if it needs the tapered sides as well? I am away from my dies at the moment but if I remember right on the Lee seating stem the diameter is not that large but might have enough stick to put some taper lead in. Thanks

AV8TOR,
Here is how I made custom seating dies:

http://www.uniquetek.com/site/696296/uploaded/Bullet_Seating_Stem_Customization.pdf

I used an epoxy like JB Weld.

Extra seating stems for Lee dies are cheap!

JD

 

[9mmepiphany]

Just wondering if the contact can just be a flat or if it needs the tapered sides as well?

I'm just using a flat seating stem in my Hornady die. I do the same with my RCBS one.

It is the same stem as I'd use with a hollow point bullet.