Anschutz 1813 Bedding Screws

[cjmarrio]

If anyone has any unused or unwanted 1813 bedding screws that I could have/ buy please let me know.

 

I ordered some but have been told they aren't in stock and are on back order so won't be with me for a few more weeks. Unfortunately I have a number of competition rounds left to shoot before then and don't really want to go back to using my old 1407 stock and the old bedding screws are far too long for the 1813 stock.

 

If anyone could help it would be much appreciated.

 

 

Thanks, Chris

[demonloop]

What length are the screws you need?

[cjmarrio]

Front approx 45mm shaft length, and rear 20mm shaft length. Doesn't matter if the whole bolt is threaded or just the ends.

 

Thanks,

[Squishy]

What length are the screws you need?

 

Most people aren't fussy...

[cjmarrio]

I don't mind if they're a bit shorter or longer than that to be fair.... I can just add washers if they're too long.

[Hitchphil]

Get the exact length or your bolt may not work properly but you can simply hacksaw & grind to the right length on a bench or angle grinder.

 

The screws are M6 x0.75 pitch & can be bought as Socket head stainless for a fraction of the price charged by some firearms suppliers.

 

Google will turn them up............ quid posted each?

[jonty]

Don't the 18 series bolts have a number of compression washers fitted to them? These are there for a specific purpose.

 

I don't think 'quid each posted' would meet the required criteria when people are talking about SCATTS and numerous other ways to improve their shots. Might be okay if you spend your nights shooting at tin cans'.

 

Jonty

[44mag]

Get the exact length or your bolt may not work properly but you can simply hacksaw & grind to the right length on a bench or angle grinder.

 

The screws are M6 x0.75 pitch & can be bought as Socket head stainless for a fraction of the price charged by some firearms suppliers.

 

Google will turn them up............ quid posted each?

 

 

If you have found them on google for a quid each please point me in that direction....

[HWN1011]

I was never able to find any at the beginning of the year on the internet. Ended up cutting the threads off some caps heads and rethreading M6x0.75 on a lathe. You should be able to get a machine shop to do them for around £15.

 

Also manged to find the disc spring washers but they were a little over £1each so a set was around £20.

Edited 3 October 2014 by HWN1011

[44mag]

You can get the correct cap head screws from McMaster Carr in the USA but certainly not for a quid plus post.

 

 

The Belleville washers used on the 18 series were an attempt to keep bedding tension consistent as wood expands and contracts with the environment it's in.

 

Now here's the thing about this system, over time shooters fiddle with things including these washers iv yet to see a Belleville stack that was doing the right thing on a supermatch stock. Most shooters screwed them down so tight that they did nothing anyway. Or they stacked them wrong so that the tension required for them to work right could never be achieved without the screw thread being stripped.

 

If the stock has had pillars installed or has been chem bedded it don't need them. I personally don't think the standard wood bedding needs it either plenty of other wood stocks don't use this system! if you have a good torque wrench in your kit bag a quick check before shooting is all thats required.

 

 

Chris if you don't dig any up its 2 minutes work for me to make you some and if it needs bedding I can do that too.

[Hitchphil]

Try these guys - http://www.stainlessautomotivefastenings.co.uk/index.php?main_page=index&cPath=123_25&zenid=42ddb0130018ef689c0319b2c36836af

 

prices up a bit since & poss I bought long M6 shoulders that are about 50p each & put a fine pitched tap down them to make my own - found one in the shed but not a good thread cut so discarded.

 

HWN1011 - running a tap down stainless will be (a bit ) easier than black bolts that are tempered - but anyone trying this -VIP is lots of small cuts with lube & then dress it with some diamond paste & die spinning as a rough thread surface will stick & interfere with the end load vs torque.

 

My point about right length is the back retaining bolt can come up inside the action & interfere, even lock the bolt action! (have seen this in a cub gun).

 

Bellville washers (not necessary really) can also be found here: http://www.assocspring.co.uk/p/22/belleville_spring_washers/

 

As an engineer & don't always assume what an OEM tells me is correct or an optimal fitting solution. Jonty - Bellville washers in particular combinations give a more consistent end load vs torque applied, so were a means to 'more consistently' set action compression when using e.g. that nasty old Anschutz Allen key with the 2 finger positions in it. They also took up expansion of wood, but really compare the modulus & expansion of the wood vs the bolts & its no brains the wood just cannot add that much pressure. I think like many shooting gadgets & settings it was more marketing than physics.

 

Modern torque wrenches eliminate most of that need, but finding the best torque is still worth doing. - a simple experiment to find a good torque: bolt the stock fore end into a weighted down work bench, shoot 5-10 rnds at the back of a target, move the paper not the gun, increment the torque (always do the front bolt first) & repeat & you might find group size & shape improve to a point then deteriorate before the effect of load starts to move the group vertically (cuz of that big cut out in the top to load the rounds you can bend an Anschutz action!).

 

Note & use the best setting, keep it dry of oil or rain & check periodically. Torqued to the correct level it will be fine as mine was to county level & I have never had to shoot tin cans to prove it

 

A .22 TR action firmly bolted into 'a bit of wood' with or without a pile of washers, but at the correct loading will make no detectable difference to accuracy - I have tried it. What will make a notable difference is to mill back the wood & bed the action in with steel powder loaded epoxy & SS pillars in the bolt holes.

 

I bedded a RH Swing 7.62 into a LH wooden Paramount stock with Isopon 600 car body compound, torqued up with a Halfords bike multi tool in the wood, as an emergency measure the night before a match. It shot 3/4min of arc out to 1000yds - as good as anything on the range that day. I have bedded 3 guns since (with better material & they performed better after; bolted in a vice or in the hand.

 

So if for nothing else change the bolts, fit plain washers, lube the thread lightly on fitting, torque to a good setting (ask others what they use it will be about right) & eliminate their doubt from your shoot. - that will have more positive effect than +/- 0.25Nm.

[cjmarrio]

Thanks for the replies guys.

 

Phil- The link you posted was the site I ordered them from. Unfortunately that was on the 21st Sept and still not been dispatched.

 

I didn't fancy paying another £15 from specialist shooting websites on top.

 

Sean- I might have to take you up on the offer if you've got chance to make any in the next week? I've got to have 3 rounds shot by the 19th Oct.

[44mag]

Chris you screws are done.. get yourself round to mine and I'll put it together for you.

[Guest Dave_C]

Hi,

 

I found the same site that Phil did (www.stainlessautomotivefastenings.co.uk), but be warned: the guy that runs the site is ill and is not completing orders for 2-3 weeks.

I went with NSSS, who were able to supply black tempered bolts and supply them next day, but for a bit more.

 

Dave