Bullet/powder for new MPX PCC

[Fasthenk65]

New MPX is underway, had change to shoot gen 2 today with plated 145/0,356... This with Lovex D036 (say N340). Wow. Softest I ever felt and super accurate. 

 

My question for Sig MPX PCC users (3rd gen) what is the best ammo (bullet/powder) combo??

 

Kind regards,

 

[OPENB]

I like 124gr. bullets with slower powders than commonly used in Production, like WAC, Silhouette, etc.  The MPX is gas operated, so you need a gassy powder, whereas the blowback guns love fast powders & respond to tinkering with buffers, springs, bolts. 

[George16]

124 Gr JHP with 4.0 Gr of Sport Pistol is working very well on mine.

[VU2AKILL]

Mine loves a combo of 125gr RN Blue Bullet over 4.7 Grains of True Blue at 1.135 OAL.  Soft shooting, accurate and pretty dang clean.

[Fasthenk65]

appreciated... waiting fore more choices

[Rolex]

124 gr JHP Precision Delta, N320 3.6gr or Sport Pistol 3.6 gr.

This is out of a 8" Sig barrel.

Do Not use exposed lead base in the MPX- it will clog the gas valve!

[mannyc]

147 gr Xtreme, with 3.7 gr of Titegroup on mine

[tanfoglio1911]

147gr Blue Bullets & 2.7grains of Titegroup will give me 135 -137 PF. Very soft compared to 124gr.

[verla]

what is the best bullet/powder combination for a 9mm FX-9 blowback type PCC in terms of the softest shooting load for rapid fire ? 

[Fasthenk65]

On 6/28/2019 at 7:35 PM, tanfoglio1911 said:

147gr Blue Bullets & 2.7grains of Titegroup will give me 135 -137 PF. Very soft compared to 124gr.

only 2,7 wow

[tanfoglio1911]

1 hour ago, Fasthenk65 said:

only 2,7 wow

 

[fyr4efect]

Ive shot 147gr 3.5gr tite group, soft. My regular is PD 124gr JHP 4.8gr WSF. PF 148. Not so soft. I will probably tone it down to sub sonic when my suppressor gets out of jail.

[2011BLDR]

For the MPX barrel length and comp play a big role in bullet weight and powder selection... in my gen 2's (13.7" barrels with MBX comps) I use 115gr JHP's with 5.9 of  CFE pistol (1425 fps)... used N340 and 3N37 in the past also..