View Full Version : Drop In CM9 barrel?
Bill K
03-24-2011, 10:46 AM
So could I drop a CM9 barrel (once they become available) into my PM9 for the the purposes of shooting lead? Maybe Kahr requires a barrel to slide match that would not allow a drop in? I know it can be done with many if not most Glock models but then Glocks appear to be fitted less tight than Kahrs.
Thanks,
Bill K.
jocko
03-24-2011, 10:55 AM
yup u sure can. People shoot lead all the time out of poytgonal rifled barrels, they just clean more often, but if you clean reguarly, you should have no problems with lead either. Alot of this negative lead stuff is unproven IMO.
Bawanna
03-24-2011, 11:20 AM
I've been told its not a leading issue but a pressure issue. I've heard very few issues related to shooting lead thru polygonal barrels but heard that it could work fine 1000 times and blow up on 1001.
I have no positive evidence to back this up but I would keep my lead shooting to a minimum myself.
I seldom load lead anymore as our ranges are not allowing it more and more so I stick with the jacketed stuff.
jocko
03-24-2011, 11:40 AM
probably soon if not already, going to be illegal to sell lead bullets, wheel weights are changing also to tape ons. Lead is really a thing of the past, maybe not sor esome who have tubs full of wheel weights but that is not the case with most reloaders either.
O won't argue to point of being able to shoot lead in polygonal barrels. If the makers say no, then don't do it, I can't say I have read of polygonal rifle barrels blowing up due to lead pressures but again I don't go looking for that stuff either. I am sure it has happened more than once. Probably no ore often that a squib load backed up by a good load. Sh-t will happen..
wyntrout
03-24-2011, 12:42 PM
Using cheap too-soft lead and pushing the velocities are what gets people into trouble... been there done that. I leaded the hell out of a 6" 629 barrel. I bought a .44 Lewis Lead Remover kit in .44 with brass screens and cleaned the barrel up. We weren't worrying with alloy hardness... just mixing wheel weights and whatever else lead we could get. I think my buddy bought some harder stuff to mix with what we had, though. I still run across the leftover .357 gas checks we used to help the bullets along. My buddy... the one that got me into casting my own bullets, liked to shoot magnum loads. I used reduced loads for target shooting... you could watch the .38 specials go down range and hit the dirt about two thirds the way to 100 yards.:D
That was over thirty years ago when most of my shooting was from a bag of shot on a cement shooting table and I had better eyes. Those revolvers were great for knocking the bottoms out of pop cans at 50 yards... .357 and .44. .22's were just no fun... go clean through the can without moving it, unless you hit the rims. Big centerfires could make those cans move.
Wynn:)
jocko
03-24-2011, 02:45 PM
I am more than sure the new cm9 barrel will be exactly like the new style pM9 barrel in all deminsions, other than polygonal rifled. That barrel will really fit in the old style blunt nose PM9 also. I have no doubt the new sytle pM9 slide will interchange also.
Barrel to slide match is not necessary with kahrs either. As their ported barrels was merely an accessory and required no fitting, just the dollars to order it. It will also use the exact same recoil spring assembly as the new style pm9 slides takes. Hopefully now with the cm9 coming out that maybe wolffs willgetoff their a-s and make an outter recoil spring that will fit the new style pM9 and now the new cm9. This will save kahr owners some maor bucks over havingtobuy kahrs complete recoil assembly that they now are offering for around $24 plus postage, where as they used to offer PM9 oweners and PM40 owners the privelege of just ordering the outter recoil spring.
as u well know the PM40 and PM9 take the exact same recoil spring assembly..
Hell u guys are getting me even excited about this new cm9.Last time I got that excitds was when I opened up my box that Bawanna sent to me with my refinsihed Herrets grips for my J frame and found he had done them in tit-y pink!!!
Bill K
03-24-2011, 04:57 PM
He asked if he could change barrels between a CM9 and PM9. I don't have a definitive answer. Best to inquire with KAHR since the CM9 is such a new offering. We already know there are small differences between the older blunt nose and newer tapered nose PM9 pistols. Who knows what might be different with the CM9.
I used to change barrels in my SIG pistols to allow either .40s&w or .357sig from the same platform. But once I had dedicated barrels for each caliber in each pistol, I discontinued doing that. Tolerances between the two KAHR pistols might be just enough to damage a perfectly good barrel for the pistol it was intended for.
Yes Sir, that's what I was asking but I really don't mind the other stuff as I still learn a lot.
Thanks for your response.
Bill K.
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