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EAA Witness 10mm to 40 S&W
PapaBSR
Member Posts: 25 ✭✭
Has anyone tried just a barrel and mag swap on the EAA Witness with out replacing the slide? I have done this on other handguns with success.
Comments
From my perspective, a "minimal" 10mm to .40SW conversion would entail at least swapping in a proper .40SW barrel for headspace, and an appropriate .40SW weight spring to ensure good reliability.
You might be able to get away running .40SW through a 10mm magazine, though IMO .40SW EAA witness mags are pretty easy to get, and so that's probably a better way to go.
Now in fact, its possible (and maybe even likely) that the EAA 10mm shares the exact same slide as the .40SW, so this might actually be "the" conversion, but I don't know that for sure. You could contact EAA and ask them, they might tell you.
Edit: In other words, I'm saying the EAA "10mm" slide and the "40SW" slide might be otherwise identical. Don't know. . .but given the barrels are the same caliber, and likely to be the same external diameter it seems likely to me.
i think you can shoot .40s&w out ot a 10mm barrel. the 40 is the same caliber, just shorter brass. like shooting .22cal out of a .22LR barrel. i could be wrong, hopefully someone else will confirm or not.
Big diff young one. you talking about Hunderds of in pressure diff. i sure as hell would not ever listen to your line of thinking. that is like sayin oh u can shoot .308 out of 30-06, they are both .30 cal head spacing IS VERY IMPORTANT [V]
Note, I have large frame .40 barrels in stock which are used to convert a 10mm Witness pistol to .40 with no other parts needed for the caliber conversion. You can use your 10mm slide and magazines with this barrel to run .40 ammo in a 10mm pistol. Same cost as standard barrels and probably not available from any other EAA/Tanfoglio parts vendor in the USA.
I don't have any 10mm stuff since I got rid of my Delta Elite; but my Witness in .40 will chamber a 10mm empty.
quote:(and don't let anyone tell you otherwise),
Yes, a 40 S&W, can be fired in a 10mm Norma chamber, safely, and reliably. Yes, pistols with tight extractors, might hold the round in place for the firingpin to detonate the primer. However, with just the extractor holding the case, you are asking a lot.
The most proficient means of firing a 40 S&W, in a 10mm Norma chamber, is the S&W 610, 10mm Norma revolver, which uses moon clips to hold the cartridges by the rim, for extraction. This method has been used in revolvers for 45 Colt/45 ACP, and 357 Magnum/38 special. On a side note, the 38/357 are rimmed cartridges, and will headspace on the rim also, but some speed shooters have their revolvers cut specifically for use of the moon clips, wwith the 38/357, for speed loading/reloading purposes.
Best