My 1890ish Baker hammer gun is a 2-7/8" and my 1879 Parker Grade 2 is 2-5/8". I just tried out Sherman Bell's one ounce loads and they really are fun to shoot!

Count me in - DH 10, Damascus, 1891. It's my constant companion every Spring for quite a few years now.

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1878 PT 10
 

This old Parker has 2&5/8" chambers. I have 10 RMC cases for it. The bird was dropped at about 30 yards with an ounce and a half of #4s pushed by an equal measure of FFg.

short 10
 

Count me in. Have two. Not Parkers-sorry. W C SCOTT hammer gun and a Continental hammer gun. Hunt ducks and geese and turkeys.

Count me in. NH 32" barrels

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Is there any place to purchase 2 7/8" hulls for the 10ga?

Les not that Ive found we trim them with some members tool 3/4 dowell with X-acto knife blade stuck in it if you haven't seem it hollar and I'll put pictures on. who ever figured it out is "double barrel smart" ch

Les, I've purchased 3 1/2" new Remington 10's (Empties) and had them trimmed to 2 7/8". Ballistic Products, or Precision Reloading (?) carry them. Hope this helps. Mark

2 7/8" was the chamber length for 3" shells.
Remember, Parker Bros. cut the chambers 1/8" shorter than the shells to be used for a better gas seal.

has any body ever seen a 3 inch 10 ga shell...all ive ever seen is the boxes marked 2 7/8 inch or shorter...then again ive not seen every thing ... charlie