Gas Piston Size

Question
I recently purchased an FNH SLP shotgun which comes with two different sized gas pistons.  The larger size piston for 1 1/2 oz or larger ammunition and the smaller for 1 1/4 or smaller ammunition.  What size is used for 2 3/4" 00 buck 12 pellets?  Thanks.

Answer
Hi Bill.

Most 2 3/4" 00 buck shells contain 9 pellets that are 54 grains each for a total shot weight of 1.1 ounces, thus I would probably use the smaller piston.  I haven't owned or operated an FNH SLP shotgun however so I can't give you a definitive answer.  To be sure you should contact the manufacturer as follows:

FNH USA Commercial and Law Enforcement Sales
PO Box 697
McLean, VA 22101
Phone: 703-288-1292
Fax: 703-288-1730
Web: http://www.fnhusa.com/products/firearms/family.asp?fid=FNF005&gid=FNG002&cid=FNC...
E-Mail: [email protected]

In case you are curious about the shot weight of other popular 12 gauge loads, the following site contains a summary table which may help:

http://www.frfrogspad.com/shotgun.htm

Good luck and stay safe.

Bob