slip-on gas check too small

[30hrrtt]

I have a couple boxes of old slip-on gas checks that say 44 cal.
One box is Lyman and the other says Ideal. The price on the Ideal says $4.00 so that's how old they are.

They slip on loosely and the .430 lee sizer doesn't affect them. I measured them and they measure .426. The bullet is good and works with the Hornady checks I have so I do not want to change the mold in any way.

If I super glue them on, will the accuracy or leading be affected with them undersized?

[9.3X62AL]

I don't recall using any of the "fall free" Lyman/Ideal checks, I have intentionally avoided them and stuck with Hornady's crimp-on style since I started this bit in 1981. I sometimes have to flare a check edge to fit a boolit shank, but that's how it goes. My concern was and remains that a loose-fitting check could work its way away from the boolit base in a loaded cartridge, and wind up "ringing" a chamber or bore. If dacron fiber can do that (as it did me), then a gas check surely can.

Murphy's Law gets no plea bargains.