So, am I correct that chamber inserts for shotguns would allow a 12 guage 3 inch magnum to use 20 guage and 410 guage shells. How about slugs shells with chamber inserts?
Is it correct that such a shotgun already allows use of all other 12 guage shells without an insert?
Am I correct that a single-shot or bolt-action rifle in .223 could use chamber inserts for .22 LR or .22 ammunition, or any other rimfire ammunition with the same bullet diameter?
Do I correctly understand that use of chamber inserts in lager caliber rifles follow the same principle regarding bullet diameter, and that using chamber inserts for much smaller ammunition would tend to less reliable shot placement and lead to quicker barrel fouling?
And are there chamber inserts or equivalents for single-shot or revolver-style pistols?
Edit:
http://www.mcace.com/adapters.htm http://www.mcace.com/shotguninserts.htmMy interest is to be able to use the widest range of ammunition with each gun.
Modern shotgun chambers come in 2 3/4", 3" and 3 1/2"
Some older ones may have shorter chambers.
While you can shoot a 3" shell in a 3 1/2" chamber, you can
not do the reverse.
If a bullet or slug doesn't ride on the sides of the
barrel, be it rifled or not, accuracy will be terrible.
22 rimfire has a different bullet diameter than 223 Rem.
so shooting 22 rimfire in a 223 would give poor performance.
Also any long jump to the rifling by the bullet can decrease
accuracy in most cases.
Since 12 gauge ammo is usually cheaper than smaller gauges
and chamber inserts don't work well with rifled guns, I prefer
to handload to get both reduced and full power loads
for each firearm.
Another option might be to look into switch barrel guns.
From the same stock and action you could shoot any combination
of gauges or calibers by switching barrels.
A new barrel for a handi rifle could cost the same as some
of the fancier shotgun chamber inserts.
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