Range report: RMR 115 9mm bullet and Titegroup

[danpass]

So I was looking for a training/plinking load without going into commercial.

http://www.danpassaro.com/img/s8/v80/p1805000266-4.jpg

http://www.danpassaro.com/img/s9/v97/p1684588097-4.jpg

http://www.danpassaro.com/img/s9/v86/p1817279769-4.jpg



4.0 seems to be the lower limit for full cycling and that carbon mark seems to confirm.

In the Sierra manual 4.2 is listed as the accuracy load.

But I'd like to get the same feel as WWB. So my next try is:

4.5 at 1.100 (Sierra MAX load)

4.5 at 1.125 (Lee 2nd STARTING load lol)

And try both in the G19g3 and the Browning Hipower.

That's the SR-1 target.



UPDATE

http://www.danpassaro.com/img/s11/v36/p1626932539-4.jpg

http://www.danpassaro.com/img/s9/v96/p1864739694-4.jpg

http://www.danpassaro.com/img/s9/v91/p1803003909-4.jpg



Full zoom photo http://www.danpassaro.com/img/s9/v87/p1798017440.jpg

http://www.danpassaro.com/img/s9/v87/p1798017440-4.jpg

[duece71]

Tag for interest, will use this for some reference when I load for my G19.

[rjacobs]

I cant remember my OAL off the top of my head, but I found 4.5g of Titegroup with the 115's to be the best in pretty much every 9mm I have(gen3 G19, gen3 G26, Gen4 G19, MP9FS and 2 MP9C's). I shot about 100 of each(500 total) from 4 to 4.5g between the G19's and the MP9FS with 4.5g being the overall best. I did my load development 4-5 years ago and have probably now shot 15k+ and its still a great load.

[Bret]

Are the RMR bullets jacketed or plated?

[samson7x]

Are the RMR bullets jacketed or plated?

+1

Link to the RMR bullets?

[danpass]

They are plated but website says to use jacketed velocities for reloading

http://www.shop.rmrbullets.com/category.sc?categoryId=12

[danpass]

op updated

[T2C]

I always like to keep an eye out for new reload recipes. I agree with your observation about the soot on the brass loaded with 4.0g of Tite Group. The 4.0g load appears to be under pressured. 4.5g seems to be the right charge weight for the Glock 19. The difference in groups with 1.100" and 1.125" C.O.L. got my attention. I am going to try lengthening the C.O.L. for my Glock 34 reloads and see if I get the same results that you did.

Thanks for the data.

[danpass]

I'm actually leaning toward the 1.100.

I'll hold volume production until your results :D

Unfortunately I had only made 10 of each instead of 20, thereby ending up with only 5rd groups this time.

[Mark/MO]

Interestingly my results from a few years ago confirms much of your findings. Iin my 9 mm Glocks 4.0 grains of Titegroup with a 115 gr bullet shot the absolute best, 10 shots just over 3" at 25 yards from a rest. Velocity was right at 1080 fps. 4.2 grains was almost as accurate while running about 1110 fps or so Both loads had low standard deviation. While I had no malfunctions with either load I preferred the 4.2 load for general practice and matches.
4.4 grains did well also and clocked about 1155 fps. I did try 4.8 grains of Titegroup, again with a 115 grain bullet, and it was doing about 1230 fps but groups opened up quite a bit more. For now my 9mm practice loads are 4.2 of Titegroup with a 115 grain FMJ. If shooting a match or something in the winter I might bump the load to 4.4 to give a little extra margin for the cold.

[T2C]

I fired a lot of rounds through my Glock 19 and Glock 34 the past two days. 1.115" C.O.L. seems to work best in my Glocks. Try it out and see what you think.

[danpass]

Ok, my next step has arrived and since these are plinking rounds it should be ok:

I've received the Lee Pro Auto Disk and I have it set for single stage. The closest disk ports throw 4.3(5ish), that one is just above 4.3 and just below 4.4 on the beam scale or 4.7 on the nose of Titegroup. And it does it every. single. time. Extremely consistent, so that makes it ok.

I'm going to load up 20rnds each, all at 1.125 coal. 4.5 still didn't have the kick of 115WWB (but it was close, subjective of course).

[rjacobs]

You will never get the same felt recoil as WWB or any other ammo for that matter because every powder has different burn rates and thus will cause different felt recoil.

You need a chrono to see what your loads are doing. All I generally care about for pistol stuff is accuracy which can change greatly in .5g when you are trying things in .1g differences.