Ejection pattern

[imarangemaster]

Well, I was dressing up my Inland for match shooting. I am putting the high wood rockola in the safe and using the pot belly Type V stock. I took the flat bolt with Type I ejector and type III slide off, and put on a round IO bolt with type II ejector and new Type VI slide. Want to conserve the early parts while match shooting. The first thing I noticed is that when I fire it, the brass ejection pattern is way different than the flat bolt and TYPE II slide. The earlier stuff ejects the brass with more energy (and more dispersion). The round bolt with later ejector and Type VI slide dumps the stuff between 3 and 4:30, and about 3-4 feet off to the side. I suppose that is better than chasing the brass from the flat bolt.

I checked head spaced on the round bolt and did a thorough strip and replaced the springs with new ones. With both bolts out of the weapon using the "thumb test" with an empty case (empty under the extractor, then pulled back against ejector, then released), both flip equal distance and the same energy.

My question is: Why did they change cam angles on bolt, face of ejector, and bolt delay, cam surface length, and angle in the type VI slide? All I could find in Riesch is something about improving ejection. It functioned 100%, and made a nice pile of brass 3-4 feet to my right, but I doubt if the military was concerned about making a nice pile of brass!

I am just curious.

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[browningautorifle]

I think it's more like a positive ejection than pattern for prettyness. In the army we prized function over looks.

[imarangemaster]

I agree. That's what confuses me. My ejection is much more positive with the flat bolt and early slide. With them, it ejects (launches) empties like my .223 Saiga AK's ejection. Finding the brass is a nightmare.

While effective, the later setup is "lack luster" by comparison. I'll keep the later stuff on to conserve the earlier stuff, and because it makes a smaller pile of brass for matches. I'll make sure the later set-up ejects 100% for a hundred rounds or so, just to be sure.

I did just find reference that the Type V and VI had increased dwell to delay the breech opening to decrease breech flash.

[browningautorifle]

That would be a change in the cam inside the op slide. Longer to slow bolt opening. That might have something to do with it.