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Uncrimping a magazine tube

Posted: Thu Jul 25, 2013 7:57 pm
by walesdave
Hi All,

I know this is a bit of a 'How long is a piece of string' question...but here goes...

I've just applied for a 1 for 1 variation to get a Sec1 shotgun: target shotgun and practical shotgun are its' intended use.

Seen a couple of Hatsan MP-A's on gunstar for what appears to be very reasonable prices, but they are Sec2 with crimped magazine tubes. 'm not really after gun advice, my budget is very tight and the Hatsans appear to fit what I want.

Here's the question...I know a gunsmith can remove the magazine crimp, but roughly what would this cost, and does removing the crimp work properly or can it lead to feeding issues?

Thanks in advance,

David

Re: Uncrimping a magazine tube

Posted: Thu Jul 25, 2013 8:58 pm
by 4Islander
Most gunsmiths who raise magtube dents can do it, expect at least a £50 bill.

However if its a semi-auto that has a piston that needs to travel freely up & down the outside of the magtube then you are asking for trouble, it may be better to simply replace the mag tube, I dont know if you can do that on the MPA but I did it no problem with a Supernova.

I know you didnt ask for gun advice but the MPA is not very good for PSG, it might be ok for target shotgun but the lack of a changable choke system & the low capacity will put you at a disadvantage.

Good luck & if you are looking for fun & interesting competitions that are open to all then check out the four4islands shotgun match series.

Re: Uncrimping a magazine tube

Posted: Thu Jul 25, 2013 9:07 pm
by SevenSixTwo
YouTube has a few videos on this. Brownells also sell a 'de-crimping' tool. Me? I'd just get a new magazine.

Re: Uncrimping a magazine tube

Posted: Thu Jul 25, 2013 9:20 pm
by techguy
SevenSixTwo wrote:YouTube has a few videos on this. Brownells also sell a 'de-crimping' tool. Me? I'd just get a new magazine.
That's what I did with my Benelli... wouldn't want to make a habit of the job though... especially on a brand new unused £600 gun!

Re: Uncrimping a magazine tube

Posted: Fri Jul 26, 2013 12:21 pm
by Dangermouse
I would say not to bother - there are enough sec 1 Hatsans out there at cheap prices already without going through the hassle of converting a sec 2 to 1.
The Sec 1's were cheaper new than Sec 2's so the SH prices should reflect this.

DM

Re: Uncrimping a magazine tube

Posted: Fri Jul 26, 2013 9:29 pm
by walesdave
Hi All

Thanks for the advice, given me a lot to think of...
Now I just have to wait for Gwents' finest to refuse my 1 for 1, then I complain....then they grant it..... :cool2:

4Islander: checked out the website - looks good and something I will pursue if I get my 1 for 1.
Thanks for the gun advice, I'm not after serious competition, more of a gun to be used at club level. I've seen online that Nova extensions fit the Hatsan, so I think I would be able to get up to 9+1. As far as chokes go....that's all beyond me, think a fixed choke would be better as I've never owned a shotgun before so the less for me to fiddle with and break the better!

Dangermouse: cheers for the advice about the cost of Sec1 Hatsans. Only prob is that I've not seen any used Sec1 MP-A's on gunstar or guntrader and I really like their look. An Escort isn't out of the question though - and you're spot on, there's plenty used ones at reasonable prices.

Thanks again

David

Re: Uncrimping a magazine tube

Posted: Fri Jul 26, 2013 11:01 pm
by saddler
The original crimped S.2 magazine is an easy item to replace with a new S.1 tube.
Fit one the same length, then you can further extend it with either a factory or after-market add-on

Re: Uncrimping a magazine tube

Posted: Mon Jul 29, 2013 11:14 am
by mag41uk
Please dont buy a shotgun with a fixed choke for psg.
You will seriously regret it!
You may need different chokes for shot and slug.
Tony

Re: Uncrimping a magazine tube

Posted: Mon Jul 29, 2013 11:28 am
by Mikaveli
Definitely don't get a shotgun with a fixed choke for PSG.

When I was new to shotguns, I felt the same - like chokes were too much to consider as a complete newbie. But to make things very, very simple for you here's an over-simplified guide:

Using shot (not slug), if your targets are 6 - 20m away, use a 1/2 choke. The closer you are, the less you'll be able to tell what choke you're using, as the shot won't have had time to spread out.

Using slug, use either a cylinder or 1/4 choke - depending on which one you find most accurate. Don't use tight chokes with slugs 1/2, 3/4 or Full etc.

Done. :)

Re: Uncrimping a magazine tube

Posted: Mon Jul 29, 2013 12:00 pm
by saddler
I use full choke for slugs - not a problem & never had any problems in doing so

Shot a PSG comp at the weekend & did all the stages with the full choke fitted