20” 7mm Rem Mag, suppressed????

[Jlop_2]

Factory ammo.

Standard Deviation for hornady was 8.1 and 20.5 for barnes, this was a 5 shot string for both.

 

[Ben_H]

I’ve been reading this thread off an on for weeks, all while digging anywhere I could to find info on 20” 7RM. Putting a can on my Bergara wilderness ridge is too long and heavy. Without the can it’s deafening! There’s a few guys in New Zealand that cut their’s down and posted on YouTube. One cut his Tikka to 21”, but only because his barrel was fluted and that is all he could do without getting into the fluting. His buddy went 20”. They are getting over 3000fps on hand loads with Reloader 23.

Well, I went ahead and ordered a customer OMR 20” carbon fiber barrel threaded. It shipped today and I’ll update when I shoot it. It’ll be paired with a Grayboe Phoenix 2 Stock, Timney Hunter flat trigger, SilencerCo Hybrid 46 (mounted direct thread for length and weight savings) Also a Falcon Defense LW7 Action.

While waiting for the most expensive action/barrel I’ve ever bought to be made, I have had some doubts about my choice in chambering. The success from the guys in this thread, along with a couple New Zealand forums has made me feel a whole lot better about my decision during my wait.

 

[Ben_H]

For anyone wondering, my 7mm rem mag with 20” barrel got a proper break in this past weekend. Then, we dialed it to 200 yards. 1.5” at 200 yards and stretched to 400 this week. Excellent shooter with factory ammo. Velocities ranged from 2750 to 3010 fps and bullets from 155gr to 162gr. I may start a separate thread with pics and more detailed specs for those interested. If you’re thinking of building short barreled 7mm then go for it.

 

[Shortschaf]

Factory tikka 7rm cut to 20" shooting 150eldx great at 2950 with H4831SC. Pressure at 3000

168classic hunters shooting great at 2750 with H1000. Haven't loaded to pressure with those

 

[Vurtle]

Factory tikka 7rm cut to 20" shooting 150eldx great at 2950 with H4831SC. Pressure at 3000

168classic hunters shooting great at 2750 with H1000. Haven't loaded to pressure with those

Do you mind sharing your OAL and 4831 charge weight for 2950? I will be running the 150 eldx also.

My Tikka T3X Lite 7mm Rem Mag just came in and I am about to cut it to 20". I was considering 16.5" because my Tikka T3x Lite 7mm-08 is 16.5" and really handy. I am not sure I want a magnum 7mm that short though.

 

[Shortschaf]

Do you mind sharing your OAL and 4831 charge weight for 2950? I will be running the 150 eldx also.

7rm Tikka T3x stainless 20" bbl
150ELDX COAL 3.350
H4831SC 67.3gr
Cci250 primers
Peterson brass

Max charge for me was 70gr 4831sc with this bullet and COAL. As always, start lower and work up