Marlin M717 Mach2 Troubles


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HWB
March 11, 2011, 02:32 PM
Was surfing around the other day stumbled upon a thread in this site about the m717 blowing up so to speak, I think it was by a t george back in August and I find myself in the exact same situation. My Marlin is doing the same thing.Ive read of other people having same problem, one person called Marlin they said bad batch of ammo, one was using cci some elly I was using Hornaday - is all ammo bad ???Seems this is a common problem, Anybody have any new info on this problem would love some answers - love the gun really hate to give it up !! Thanks

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ar24095
March 11, 2011, 02:37 PM
A link to the thread you are talking about would help.

HWB
March 11, 2011, 03:25 PM
http://www.thehighroad.org/archive/index.php/t-295177.html

woodsoup
March 11, 2011, 04:18 PM
99.6% of all factory semi-auto .17 M2's have timing problems. Most manufacturers simply rebarreled a .22lr action with a M2 barrel and out the door they went.

Go to www.rimfirecentral.com and read up on the problems there. stiffer recoil springs, heavier bolts and charging handles are some of the POSSIBLE fixes. Marlin MIGHT try to keep your rifle out of legal concern, so if the barrel is ok you might want to think about not returning it.

HWB
March 12, 2011, 10:06 AM
interesting not sure of barrel condition it has a bullet lodged in it now and if gun is dangerous I,m not sure I want to keep it anyway , quite sure I don,t want have it end up in someone else's hands - thing is I like others I have fired 400 -500 rounds with no problem, maybe the springs wear out over time , gun not that old ?? sounds right - bullet casing comes out in piece's - thus it's not where it needs to be at max. pressure- thanks , think I need to chat with Marlin

LoonWulf
March 12, 2011, 12:13 PM
I had my 10/22 conversion "blow up" twice. I traced the issues to the ammo, ive been using fresh hornady m2s with no problems for the last couple years and have had no problems.

sportclay
March 12, 2011, 03:54 PM
I had some similar problems with a EABCO 10/22 conversion. Never had a squib load leave a projectile in the bore though. As near as I can determine this was a timing problem caused by too light a bolt/handle/recoil spring. When it blew the magazine out of the rifle in pieces and I retrieved the casing it was clear the bolt had withdrawn the case about 1/3 of the length of the fired case and had ruptured blowing down into the magazine. Destroying the mag and blowing the extractor and plunger and extractor spring out into space. I have many pictures. I have a bag full of swollen head and split cases from this conversion. I decided to contact EABCO and was told it was the ammo... Contacted Hornady and was told it was the rifle design. I am inclined to believe Hornady as a friend has a Volquartson HM2 conversion for the 10/22 and it has not had a similar malfunction. the Volquartson uses a heavy bolt. The Brown uses a heavy bolt handle. I subsequently tried wrapping some solder wire around the bolt to increase weight and no further problems. I have since removed the bbl and other conversion parts and gone back to the original HBbbl 22lr. Don't trust it and shouldn't have to wrap several ounces of lead wire around the handle. I purchased a Green Mountain drop-in conversion bbl for the 77/22 to 17Hm2 and have fired well over 1500 rounds (all Hornady) through this combination with out a single hint of an ammo malfunction. It is a 1/2 MOA tack driver. If this is an ammo problem then why haven't the lawyer concious ammo folks recalled the batches/lot #'s ? Why haven't I had single malfunction i.e., split or ruptured/ squib in the bolt 77/22? Every problem I have read about has been on the web and as near as I can tell the incidents have all occurred in semi-auto rifles. Would be interesting to find out if ammo lot #'s are perhaps saved by the folks with problems.

Maverick223
March 13, 2011, 01:47 AM
I had a heck of a problem with my 10/22 conversion (which was properly converted) using CCI ammo (many of which were cracked at the neck from the factory...before firing! :uhoh:). Similar problems were encountered, but with less frequency, when using Hornady (which should be no surprise as it too is made by CCI). When using Eley ammo it proved to operate well and did so very accurately, but in the end the horrible chore of cleaning that little hole (in a breach-cleaning action), costly ammo, and hard to find ammo made me end up selling it. A decision I don't regret one bit.

:)

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