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Large 303 Martini Stock Bolt (wanted)

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25 August 2019, 03:17
TCLouis
Large 303 Martini Stock Bolt (wanted)
Anyone out there have one of the large action bolts they are willing to part with.
Thought I had one for my action, but must be mistaken.
GPC and Sarco are out.



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25 August 2019, 03:52
dpcd
They are 7/16ths, coarse thread, 8 inch long. Go to Menards and buy one.
27 August 2019, 08:33
TCLouis
Well I be, who would guessed 7/16, I would have thought metric.

No Menards in these here parts, but a 7/16 bolt is pretty common thing.

THANKS!



Don't limit your challenges . . .
Challenge your limits


27 August 2019, 19:32
dpcd
Back then, England was an inch country.
28 August 2019, 04:50
Gary MacDonald
Same as a British Lee enfield butt stock bolt . Buy from Numrich or any parts dealer
28 August 2019, 04:51
Gary MacDonald
quote:
Originally posted by TCLouis:
Anyone out there have one of the large action bolts they are willing to part with.
Thought I had one for my action, but must be mistaken.
GPC and Sarco are out.

Numrich has the Lee enfield bolts , they are the same , don't forget the washers
28 August 2019, 07:20
dpcd
The Martini actions I have with bolts (WD, Broad Arrow marked), are 8 inches long. The Enfield actions I have, both #1 and #4, are 5 inches long.
IMA has the correct ones, both waisted, and straight, for $37.95, both on their web site and on eBay.
Personally, I would go with the Lowes version.
29 August 2019, 01:22
Russ Gould
You can make one out of all thread to the exact length you need. If you have a lathe you can put a waist on it. Weld a nut on one end and turn or grind it down.

For some reason 7/16 x 8" bolts are not that common.


Russ Gould - Whitworth Arms LLC
BigfiveHQ.com, Large Calibers and African Safaris
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29 August 2019, 08:30
TCLouis
Thank you again!
McMaster Carr has them in stock if I have no luck locally.

Sure not going for the 38 dollah version when McC has something that will work for 8 bucks.



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29 August 2019, 21:28
dian1
For grins I just looked at the stock bolt on my Greener.
7/16 diameter. Total length 7 5/8. Shaft 7 1/4. Head 3/8 thick. Head 3/4 in diameter.
14 TPI. My thread gauge does not nestle down totally into the reads so I suspect that it is threaded BSW (Whitworth). Might be a little tight fitting with threaded rod. Worth checking before you have a lot of time into making one.
06 September 2019, 03:45
Russ Gould
7/16" coarse threaded rod threads in fine to a Greener action.

But the waist is there for a reason. Unless you can drill a perfectly straight 14" hole through your stock, the bolt is not going to emerge in the center of the stock head. I have done it on a lathe, starting from both ends with the opposite end held on a floating center, and the hole does not stay straight as it theoretically should. I think you may get a better result with a D bit.


Russ Gould - Whitworth Arms LLC
BigfiveHQ.com, Large Calibers and African Safaris
Doublegunhq.com, Fine English, American and German Double Rifles and Shotguns
VH2Q.com, Varmint Rifles and Gear
06 September 2019, 03:51
dpcd
That is not the reason for the waist; in fact, bolts for the #4 series are straight. You will never find a Martini or Enfield stock with a crooked through bolt hole. They didn't use spiral drill bits, which will walk.
It was there to relieve weight and/or, save material.
08 September 2019, 03:49
Gary MacDonald
Did you ever get a replacement? I found a BSA martini 22 butt bolt , it's 11" long . I realize the SMLE are shorter , should say I totally forgot till it was mentioned, and what I use to do was counter bore the butt to use the more readily available SMLE bolts . Now please remember I'm going back 30 plus years before this internet .
I haven't found any others but haven't really looked . Hurricane prep and un prep , been busy .
08 September 2019, 07:25
TCLouis
dpcd
Did they use a Spade bit?



Don't limit your challenges . . .
Challenge your limits


08 September 2019, 20:08
dpcd
IDK, that was 140 years ago, but if you want to drill a straight hole now you use a one flute gun drill. They are stiffer and don't walk, like spiral or spade bits do. Also, you machine the stocks around the hole in the blank, you don't drill it first.