Recently got a preban M3 (imported June 1993) and took it to the range. Sample size of test was total of about 60-70 rounds. I like the gun a lot, my shoulder was not sore at all but had function problems.
Overall the results of the test was poor reliability hopefully due to the ammo I had on hand.
1) Failed to cycle correctly every shot with Federal 2-3/4" Game Load 3-1/4 Dram 1 oz. shot 6 shot w/ stated muz vel 1290 FPS
2) Failed to cycle correctly all but once with Federal Tactical 2-3/4" 9 Pellet 00 buck (LE132 00). No Dram or muz vel stated on box.
3) Cycled about 20-25 round of 2-3/4" Federal Tactical Hydra-shock HP 1 oz. Rifled Slug (LE127 RS) flawlessly. No Dram or muz vel stated on box.
I did some research on the net and see that Remington Tac 8 00 buck is recomended in improved cylinder semi autos. The M3 is cylinder choke but I'd like to give it a try.
Does anyone know where the Remington Tac 8 can be purchased on the net or in Michigan?
Any other recomendations of premium defense load to try for reliable semi auto function.?
Any recommendation for cheap practice load?
How does the M1 field/SBE cycle bird shot reliably?
If this gun could shoot birdshot reliably in semi mode I'd probably get the longer 26" barrel and a standard stock for hunting.