Lead vs Copper Jacket

[Merc1138]

Don't k ow either. Jus their rule.

Maybe city rule or something.

I just recently learned of a range in Commerce that closed partially because of elevated leaf levels in neighboring houses

OMG, they closed the range just because it's fall and leaves started falling off trees and blowing around?

[shadow65]

For plinking I like Winchester or Fed copper was bulk pack.
Mini Mags burn cleaner and generally have better accuracy, depending on your barrel.

I shoot a lot of Wolf MT for accuracy.

Bare lead bullets will build up gunk on the ramp quicker than copper wash in my findings. When you are shooting hundreds of rounds, it does make a difference.

Remington subs are so bad that I can gum up and AR .22 action in one mag.
Dirty rounds also contribute to the problem.

Something else to keep in mind with the CMMG's is 36 gr. HP generally runs better than 40 gr. solids.

Dave N

[donw]

key factor is cleaning the action and chamber of residual lubricant.

i use a nylon bore brush, Hoppes #9 and a drill motor to clean the chamber.

the nylon brush does not wear the chamber and the Hoppes cleans the lube from it, thoroughly; this insures reliable feeding, extraction of the spent cartridge case, and lessens chances of FTF from residue building up to cushion the firing pin strike.

[CharlesV]

Don, not so fast! Your post reminded me of a related problem.

Inconsistent cartridge diameters seriously effect my shooting and cause failures to load and eject.

I shoot common .22s like Marlin and Ruger which seem to shoot anything. Last week i took out my Beretta .22 and Blazer bulk ammo and the gun failed on each and every round, yet ive used that ammo with success other times.

I didnt want to go back for ammo so i stayed out and hand-fed the Beretta and each round fired fine. BUT....i noticed that each round fed into the breech had a very different case diameter. Some rounds fit loosely, some ok, many had such a tight fit they either had to be forced in or rejected outright. A too-tight-fit assures failures, even for the cleanest gun in the world.

With CCI, the cyling is fine, meaning to me that there is much higher consistency and precision in cartridge-making, nevermind the grains or powder. With CCI i never had to consider this problem because i never hand-fed each cartridge wherein i would see the differences in diameter.

Most people do not hand-feed a semi-auto, they rely on the internal systems so that they never have to see what i saw. The FTFs, FTEs continue and people dont know exactly why. In other words, most guns would shoot more brands/models of ammo if all the MFRs had very precise casings--which I can see they dont. Cartridges look the same but they arent.

[Izzy43]

Don, not so fast! Your post reminded me of a related problem.

Inconsistent cartridge diameters seriously effect my shooting and cause failures to load and eject.

I shoot common .22s like Marlin and Ruger which seem to shoot anything. Last week i took out my Beretta .22 and Blazer bulk ammo and the gun failed on each and every round, yet ive used that ammo with success other times.

I didnt want to go back for ammo so i stayed out and hand-fed the Beretta and each round fired fine. BUT....i noticed that each round fed into the breech had a very different case diameter. Some rounds fit loosely, some ok, many had such a tight fit they either had to be forced in or rejected outright. A too-tight-fit assures failures, even for the cleanest gun in the world.

With CCI, the cyling is fine, meaning to me that there is much higher consistency and precision in cartridge-making, nevermind the grains or powder. With CCI i never had to consider this problem because i never hand-fed each cartridge wherein i would see the differences in diameter.

Most people do not hand-feed a semi-auto, they rely on the internal systems so that they never have to see what i saw. The FTFs, FTEs continue and people dont know exactly why. In other words, most guns would shoot more brands/models of ammo if all the MFRs had very precise casings--which I can see they dont. Cartridges look the same but they arent.

That's one reason that bulk ammo is $.03-.06 round, little of any quality control. Step up to match level ammo and fewer problems. Bottom line we get what we pay for.

[bohoki]

my cmmg conversion seems to work best with cci blazer

out of the bulk packed 500+- round loose packs

for reliablility i rate them

cci blazer
winchester
federal
remington