shamirnewell wrote:Anybody got any time motion studies on barrel change time for say
Mg 34
Mg 42 has to be better then Mg 34
Bren
Browning .30 caliber
I would think the Mg 42 would be the fastest and easiest to change hands down.
But I have not changed a Bren or browning.
Somebody surely did the studies. Wonder what data says.
losing the 75 round saddle does not strike me as a major loss cause those 50 round drums were handy, the 25 more rounds is a second of fire
I have a MG34, M53, DP28 and DPM. Of those the M53 is hands down the quickest to change barrels in.
Basic steps are:
MG34
1. lock back the bolt
2. press and hold the retaining latch
3. rotate the barrel away from the receiver
4. pull out the barrel
DP28 / DPM
1. lock back the bolt
2. press and hold the retaining pin
3. Give the barrel a quarter clockwise turn
4. Pull the barrel forward and out of the receiver.
M53
1. lock back the bolt
2. Push forward the retaining clip and the side latch swings open
3. pull the barrel out.
I believe that the Bren is similar to the DP28 but made easier by the carry handle on the barrel. I've had a go at stripping a friends Browning .30 cal and I think you have to take the guts out before you can replace the barrel.
A note to the MG34, because the barrel housing rotates on a pin on the right side of the receiver it's actually a bit of a pain to change the barrel when using it with a bipod as the receiver needs to be rotated down and to the right. The logic for this is that when the gun is on a tripod, the receiver is clamped down to the tripod and there is a special clamp on the barrel allowing the assistant to rotate the barrel housing up and to the right.