Ordered a 392s from Crosman today, let the games begin.
I was given a 392 by a coworker. It wouldn’t hold air. I disassembled it when I got it back to my shop, and still haven’t gotten around to rebuilding it…
Both my 392 and 397S can be pumped and retain air with out cocking the bolt. Oddly, the 397S is a gun I want to love, but that high comb is problematic at times. I tried a scope mount, but didn't like it. Maybe I'll get a Baker mount at some point and try again. When target shooting I can get comfortable sometimes, but if I shoulder to fire quickly, I can't get sights to line up properly (like when pesting) because of the comb hight. I have to get behind the comb, if that makes sense. It's awkward and not easy for muscle memory to kick in and be lined up. Thinking about cutting up the synthetic stock to suite me better. I'll need some liquid courage if that day ever comes. My wood stocked 392 with peeps, darn near perfect airgun. Will do most everything an airgun should do.
Quote from: ER00z on July 14, 2021, 02:59:27 PMBoth my 392 and 397S can be pumped and retain air with out cocking the bolt. Oddly, the 397S is a gun I want to love, but that high comb is problematic at times. I tried a scope mount, but didn't like it. Maybe I'll get a Baker mount at some point and try again. When target shooting I can get comfortable sometimes, but if I shoulder to fire quickly, I can't get sights to line up properly (like when pesting) because of the comb hight. I have to get behind the comb, if that makes sense. It's awkward and not easy for muscle memory to kick in and be lined up. Thinking about cutting up the synthetic stock to suite me better. I'll need some liquid courage if that day ever comes. My wood stocked 392 with peeps, darn near perfect airgun. Will do most everything an airgun should do.I have two 392 benji’s and a 397, none of which will pump air if not cocked, or at least pull the bolt back far enough to hear the first click.Both of the 392s models I have handled pumped air without touching the bolt at all.I understand that the basic internal parts are the same, but somethings different... springs?
Quote from: 35 shooter on July 14, 2021, 03:24:36 PMQuote from: ER00z on July 14, 2021, 02:59:27 PMBoth my 392 and 397S can be pumped and retain air with out cocking the bolt. Oddly, the 397S is a gun I want to love, but that high comb is problematic at times. I tried a scope mount, but didn't like it. Maybe I'll get a Baker mount at some point and try again. When target shooting I can get comfortable sometimes, but if I shoulder to fire quickly, I can't get sights to line up properly (like when pesting) because of the comb hight. I have to get behind the comb, if that makes sense. It's awkward and not easy for muscle memory to kick in and be lined up. Thinking about cutting up the synthetic stock to suite me better. I'll need some liquid courage if that day ever comes. My wood stocked 392 with peeps, darn near perfect airgun. Will do most everything an airgun should do.I have two 392 benji’s and a 397, none of which will pump air if not cocked, or at least pull the bolt back far enough to hear the first click.Both of the 392s models I have handled pumped air without touching the bolt at all.I understand that the basic internal parts are the same, but somethings different... springs?Yes... I would say springs.The bolt cocking effort seems a bit easier on the 392s... this would suggest the hammer spring is lighter thereby not applying pressure to the poppet.Air retention may also indicate a lighter hammer spring.Both cases may elude to a heavier valve spring. I would guess that the valve spring will lighten up with use. I'm not sure if it will lighten to the point where the gun would need cocked before pumping but, I wouldn't be surprised if the gun retains less air as it gets used.
Quote from: avator on July 14, 2021, 03:31:36 PMQuote from: 35 shooter on July 14, 2021, 03:24:36 PMQuote from: ER00z on July 14, 2021, 02:59:27 PMBoth my 392 and 397S can be pumped and retain air with out cocking the bolt. Oddly, the 397S is a gun I want to love, but that high comb is problematic at times. I tried a scope mount, but didn't like it. Maybe I'll get a Baker mount at some point and try again. When target shooting I can get comfortable sometimes, but if I shoulder to fire quickly, I can't get sights to line up properly (like when pesting) because of the comb hight. I have to get behind the comb, if that makes sense. It's awkward and not easy for muscle memory to kick in and be lined up. Thinking about cutting up the synthetic stock to suite me better. I'll need some liquid courage if that day ever comes. My wood stocked 392 with peeps, darn near perfect airgun. Will do most everything an airgun should do.I have two 392 benji’s and a 397, none of which will pump air if not cocked, or at least pull the bolt back far enough to hear the first click.Both of the 392s models I have handled pumped air without touching the bolt at all.I understand that the basic internal parts are the same, but somethings different... springs?Yes... I would say springs.The bolt cocking effort seems a bit easier on the 392s... this would suggest the hammer spring is lighter thereby not applying pressure to the poppet.Air retention may also indicate a lighter hammer spring.Both cases may elude to a heavier valve spring. I would guess that the valve spring will lighten up with use. I'm not sure if it will lighten to the point where the gun would need cocked before pumping but, I wouldn't be surprised if the gun retains less air as it gets used.Bill,You nailed it... I was suspecting the hammer spring too.Just got off the phone with crosman and they pulled the schematics up on both the 392 and 392s and it shows a different part no. for the hammer spring on the 392s.He said when they change a part no. it usually indicates a different part... so there it is.The valve spring is still the same according to the guy I talked to.
Well,My second 392s did the same as the first, but took more shots to do so.Pump lever at the bottom of the forearm bent again in the same place as the first one did at 100 shots or so .Either PA happened to get a few defective pump linkages or the way the lever sits between posts in the synthetic forearm won’t hold up for much pumping on 8 to ten pumps.I only went to ten a couple of times on the new one.Thinking about ordering a billet and linkage from Mac 1 for it. Hope no one else has this problem.It proved itself to be a great shooter before I had trouble with it, so it would be worth putting the Mac1 parts in... just was’nt counting on doing it so quickly.I don’t always pump to max, but I do want a rifle that can take it when I do.