wildcat based on 303 Brit

Ballistically, they are reasonably close. I have seen Ross rifles rebarreled in all sorts of mags, up to and including a 458 Win Mag. It is a strong action. - dan

perhaps the M10 Ross, those are built like a tank, I have one in 280 sitting in the vault.

I'm working with a 1905R Ross factory sporter, a lot lighter, but the original barrel is shot out, throat erosion is bad, and the spare barrel I have is heavier cut down military and it has even worse throat erosion, cases split when fired.
 
perhaps the M10 Ross, those are built like a tank, I have one in 280 sitting in the vault.

I'm working with a 1905R Ross factory sporter, a lot lighter, but the original barrel is shot out, throat erosion is bad, and the spare barrel I have is heavier cut down military and it has even worse throat erosion, cases split when fired.

I think I would follow Waters' example and bore the barrel to 338. Then you would have a slight variation of a 318 Westley Richards. Assuming there is enough metal in that barrel. - dan
 
i'd second the 7x57r. commercially available ammo, but you can use 303 shell holder and mauser dies to reload to reload if you want; can even form 303 brass if you like. proven round. load data for the rimmed version is a bit lighter (for combo guns) so you don't have to worry about your action. not a 6/6.5, but should be good for hunting out to the ranges you'd be shooting the ross out to i suspect.

and if you invest in the chamber reamer i'd be willing to have a conversation, as i've had a hankering for 7x57r enfield sporter to accompany by cz combo ...
 
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I'd love to have a .338-303
I wonder if this would be safe to do to a no1 action , I have a couple MK3 sporters kickin around with mediocre bores
I guess Epps used to be the go to place for .303 brit wildcats, maybe someone there has passed down knowledge or maybe even chamber reamers........ hmmmmmm
 
Not ever having done so myself, what would one be looking at paying to have a .303 British military barrel drilled out to appropriate bore diameter, and then rifled for .338" bullets" Is this more or less expensive to do than to purchase a .338" barrel blank and have it threaded for a No. 4 receiver, chambered and turned to appropriate contour?
 
I built a 35-303 improved on a 1910 Ross last summer. I used a Green Mountain barrel blank, 1 in 14 twist, cut to 20". It's a fantastic cartridge and I load it to 358 Win levels with either 200gr or 250gr Interlocks. Used it to take a cow elk and two deer this past season, all one shot kills. On average it's easy to shoot MOA or slightly less. It's become a favourite in my collection.

Unlike the 1910, almost all 1905 Ross rifles have an oddball 3tpi left hand barrel thread that is tough to duplicate. If the barrel has sufficient thickness a rebore to 338 or 358 would be your best option.

Cool project, whatever you decide. Ross rifles are unique and well made.
 
22-303….25-303…243-303
From what I have read have been done
303 Epps is a good one
You need the right endfield action to do this
P14 or 17 can’t remember
Mk4 no1 is a good one from what I hear
Hit up the grandson of Ellwoodepps
Wise choice gunsmith in Ontario he knows his 303’s
 
Keep it simple 22/303
My daughters Grandfather gave me his shell collection from when he was a youth. A few 22/30-40's in there... that is really close to a 22/303, no?
 
agree. there was also a 6.5 variant of the 7mm mauser that also came in a rimmed version so should work w ross/enfield 303 bolt no problem. i guess a 6.5x57r?

*** but i do like the idea of keeping the original barrel and reaming it for a larger caliber (if possible?).
 
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Not ever having done so myself, what would one be looking at paying to have a .303 British military barrel drilled out to appropriate bore diameter, and then rifled for .338" bullets" Is this more or less expensive to do than to purchase a .338" barrel blank and have it threaded for a No. 4 receiver, chambered and turned to appropriate contour?

Last time I asked Bob Jury ~ 1 year ago rebore was 400 bucks without rechamber; rechamber only possible depending on the calibre

His barrels are 480+ tax
 
In our area (I have only seen one, and heard of a few more) we had the Leach Jet; a .22-303. Leach made the dies for these as well.
 
Meroh, Must have been a barrel burner?? what type of powder loads were used and and what kind of speed from that rd, know that my 25=303 imp with 50 gr 4831 surplus and herter 100 gr bullets are very accurate, but its been a long time since it has seen the outdoors, like 1974.
 
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ive seen some aussie ones 22-303, 25-303 and occaisonal 270-03s, an i have wires crossed with Ken Waters 7-30 which was 30-30 not 303.

id like my #1 ruger to be a 33-03 .338/303 but its already half way there at like .316 lol
 
When I worked at CIL we made a 25-303 for Australia. I assumed it was roo medicine.

I have fantasized about a 303 wildcat, other than the 308brit, that I a couple of.

I think a 6.5 or 7mm would work well. Or, if you could find a reamer, something like a 35 Ackley version. Epps probably has a caliber like that.

I met a guy in Australia who had a 25-303 Epps. He was quite surprised to find out it was Canadian.
 
ive seen some aussie ones 22-303, 25-303 and occaisonal 270-03s, an i have wires crossed with Ken Waters 7-30 which was 30-30 not 303.

id like my #1 ruger to be a 33-03 .338/303 but its already half way there at like .316 lol

Waters bored and re rifled a very nice Mauser to save the rifle, and had it chambered to 338-303. Would make a great medium range hunting rifle. - dan
 
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