The Sierra MatchKing .22 Cal Bullets, 77 gr HP-BT with Cannelure (Sierra part no. 9377GT) are Sierra‘s pre-eminent long-range target bullets, sized at .224 in. and sold 50 to a box. This 77-grain MatchKing is built specifically for 1-in-7 to 1-in-8 twist barrels, the faster twist rates needed to stabilize a bullet this long and heavy for its caliber, and Sierra adds a cannelure so handloaders can crimp the case mouth into the bullet for a secure, consistent seating depth in semi-auto and magazine-fed rifles. The hollow point boat-tail design carries a high ballistic coefficient for its weight, giving it strong resistance to wind drift at long range.

Key Specifications

• Sized at .224 in. (.22 Cal) and 77 grains.
• A hollow point boat-tail design with a cannelure for secure case-mouth crimping.
• Sectional density of .219.
• Ballistic coefficient of .372 at 3,000 fps and above, tapering to .343 below 1,700 fps.
• Sierra designs this weight specifically for 1-in-7 to 1-in-8 twist barrels.
• Part of Sierra’s MatchKing long-range target bullet series.
• Sold 50 per box, ready for the reloading bench.
• Sold as bullets only — brass, powder, and primers complete the round.

Frequently Asked Questions

What twist rate does this bullet need? Sierra designs this 77-grain MatchKing for 1-in-7 to 1-in-8 twist barrels; a slower twist may not stabilize a bullet this long and heavy for .22 caliber.

Why does this MatchKing have a cannelure when others don’t? The cannelure lets handloaders crimp the case mouth into the bullet for a secure, consistent seating depth, which matters more at this bullet’s length in semi-auto and magazine-fed rifles.

How many bullets come in a box? 50 bullets per box.

Buy the Sierra MatchKing .22 Cal Bullets, 77 gr HP-BT with Cannelure

Order it from our Lubbock, Texas gun shop for quick, insured shipping, and browse our reloading equipment selection for the rest of your bench.