Let’s discuss brakes for 300 Norma Improved

[highdrum]

I have a peirce built 300nmi. Switched from his muscle brake to a mbm beast, noticeable reduction in recoil, at the expense of more concussive blast.

 

[tim_w]

I have a peirce built 300nmi. Switched from him muscle brake to a mbm beast, noticeable reduction in recoil.

Curious which action did he built yours on? His NMI and builds are scary accurate and forgiving from the reports I have seen in his long 300NMI thread.

 

[snox801]

Yeah those are the SRS TI Pro.

I run almost all salmon River ti slab brakes they are great. I'd say even better than my Kirby allen brake
I have a small one on my .338 lapua improved and it's still very effective and easy to shoot. Have one on my 30sm currently also and for an ultra light rifle it still is pretty tame and easy to shoot.

 

[highdrum]

Curious which action did he built yours on? His NMI and builds are scary accurate and forgiving from the reports I have seen in his long 300NMI thread.

Its a Kelbly. It needs a new barrel. Have quite a few rounds on it, between 900-1000 it doesn't have a ton of fire cracking but the throat has moved quite a ways. 230s at 3070 with N570 is hard on a bore. 2950 is a more forgiving node. Have to clean the heavy carbon fouling every 40-50 rounds. N570 is great for velocity and temp stability, but it's DIRTY burning stuff.

 

[Techy]

Muzzle brakes and more. The beast. My 70 pound middle school daughter shoots my 300 Norma AI just fine.

 

[tim_w]

Its a Kelbly. It needs a new barrel. Have quite a few rounds on it, between 900-1000 it doesn't have a ton of fire cracking but the throat has moved quite a ways. 230s at 3070 with N570 is hard on a bore. 2950 is a more forgiving node. Have to clean the heavy carbon fouling every 40-50 rounds. N570 is great for velocity and temp stability, but it's DIRTY burning stuff.

Yep that's what I have seen same but worse with rl33. Still gave 8lbs of that to burn thru. Higher neck tension and upper node helps but then the throat takes even more of a beating. When mine gets built I want to try h50bmg. I am fine with the lower vel but really like the full case and those single digit es and it has very good temp stability as well. The groups Ryan got off his h50 load were very good. The other nice thing is it never seems to go out of stock!!, lol