What is probably mixing people (readres) up as they read the recent additions to this "thread" is that people are not listing down exact information about their weapon/system, modifications, and what Blanks are being tested....such as:
There are different version of the weapon:
1: MG34 Full-Auto/Select-Fire.
2: SA34 Semi-Only TNW...(?? = are there early and late versions of the firing-mechanism-??).
3: SA34 "Home-Built" (Possibly list down either what type firing-mechanism used.).
There are different Blank-Firing-Systems used:
1: Live-Barrel w/restricted Booster-Cup/"Nozzle". (Cheaper/$$ system to set up...but has limitations as it requires more force to move additional barrel-weight).
2: 2-Pcs. Blank-Barrel-Assembly. (More expensive/$$ to set up initially......."but" is more adjustable to use cheaper/surplus .308 Blanks......this system only has to move the shorter rear-section of the barrel which is less weight).
There are any number of different BFA Hole-Sizes used/tried with the above systems.......what size did you try and what worked (??)......in either Drill-Size or Thousandths-of-an-inck (IE: .152" or #24 Drill-Size).
There are other modification to the feed-tray and/or Top-Cover......what did you use or try (??)......did you use a feed-tray-spacer (?)....and if so, which style or maybe a photo (??).
Also remember that the MG34/SA34 has a weaker feed-mechanism/"lifting" of the belt. Help feed the belt by hand, get the gun closer to the ammo-can, or use an assault-drum.
1: 8x57mm (??).
2: 7.62x51mm/.308 cal. (??).
3: Who Manufacture the Blanks or were they "surplus" and if so, what country (and possibly what the "Head-Stamp" markings were.).
**NOTE: Not all Blanks of the same caliber have the same loading....even surplus-blanks for different countries are loaded to different standards (amount and type of Powder in them). Do not mix Blanks.
NOTE: You need to take the gun to a "live-firing-range" and insure that it fires live ammo well prior to trying to Blank-Adapt it. Don't take the word of the manufacturer that they "test-fired" the gun.
If you start with a logical sequence of beginning to end.....listing down all of the variables outlined above......and then tell us what it is or is not doing, and everything that you have tried/checked........only then can anyone expect to receive logical help from Board members. Anything else is just a partial-guess as to what will fix/correct it.
Regards, RichardS in MI.Blanksguy2001@chartermi.net
PS: I am gathering the required barrels/parts for the next short run of MG34/SA34 2-pcs. Blank-Barrel-Assemblies in 7.62x51mm/.308 cal. only. Please contact me at my e-mail address if you want me to put you down on the list to contact when they are ready......which I hope to be able to start shipping around the end of September.