Thread: Ruger Mini 30 Gas block adjustment

Hi everyone,

Just thought I'd post up some work I'm 'playing with' on my Mini 30. The 30 and 14 are both semi-popular and tend to come and go on trade me. I bought mine a couple of years ago and ever since I've had the 7.62x39 dropping goats and keeping the freezer stocked with venison. After an unexpected shot off a boulder bounced the blast back into my already half deaf left ear I thought it was time to suppress it. So I sent it up to DPT and couldn't be happier with the result. I also added a recoil buffer to ease up on the internals. It has been shooting great but I want to start reloading for it. Problem is that it's now chucking brass even further than before with its "enthusiastic" gas porting.

So I have had a couple of new gas bushes turned up at a local precision engineering place. This US crowd seems to go down to a 0.06" minimum internal diameter. Stock is 0.085". Other forums suggest about 0.046" is the right balance for reliable cycling. The ones I made are 0.04" and 0.05". I figure with the additional pressure from the suppressor, it may still be reliable down at 0.04". Haven't shot it yet, but will post the results up for future reference. The new holes look smaller than I expected, so I wont be surprised if I need to go bigger...

Anyway, short of throwing an adjustable gas block on, others might wanna look at the quick fix (other than tapping in a tension pin etc!). Will let you know how it shoots.

Cheers, Feral.