[hairbear1]

I've have in my possession for a while a M17 action that had a .243 barrel in it which was stuffed and I've heard that you can use it to take a .45 calibre barrel.
My question is what will I have to do to the bolt face and will this action take the pressures associated with a .45 calibre.I have a .45 calibre barrel from A&B and it seems like this could be a worthy project as I'm thinking of a .458 AccRel,regards

[c3shooter]

Which M17? The Enfield Match rifle, or the Bushmaster AR style? The Enfield was used to create a VERY neat supressed carbine known as the DeLisle- in 45 ACP. The pressures of a .243 are MUCH higher than a .45 ACP, but bolt face does need modifying (and extractor) to handle the auto pistol case. Yours may have a modified extractor now- but check head diameter on .45 ACP and .243- I'm on the road, and don't have calipers w/ me.

[hairbear1]

Originally Posted by c3shooter

Which M17? The Enfield Match rifle, or the Bushmaster AR style? The Enfield was used to create a VERY neat supressed carbine known as the DeLisle- in 45 ACP. The pressures of a .243 are MUCH higher than a .45 ACP, but bolt face does need modifying (and extractor) to handle the auto pistol case. Yours may have a modified extractor now- but check head diameter on .45 ACP and .243- I'm on the road, and don't have calipers w/ me.

It's a Eddystone 1917 action.Heres' a few pics of the action.As far as I know I'm sure it's a military action.It's got a "W" stamped on the bolt with a "5N" stamped near it.

[john323]

I built a 458 Win Mag on a 1917 knuckle buster several years ago. It will take the pressure. Be sure to straighten out the bolt handle.

[stalkingbear]

The 1917 action will accept .458 cartridges as long as they're not too long for it. The bolt face will have to be opened up.

[john323]

Sorry I didn't mention the bolt face.