.243 | 100gr | Speer Boat-Tail

About this bullet

.243 | 100gr | Speer Boat-Tail is a bullet made by Speer. At 100 gr (6.5 g) and a diameter of 0.243'' (6.17 mm) it suits handloads where bullet weight and barrel length have to be matched carefully. Its G1 ballistic coefficient of 0.446 drives velocity retention and wind drift downrange — higher values mean a flatter trajectory at distance. A twist rate of 1:10.0 is recommended for stable flight; slower twists can under-stabilise this bullet. We currently list 362 load recipes across 32 calibers for this bullet.

Most popular calibers for this bullet

Load data for .243 | 100gr | Speer Boat-Tail bullet is available in the following calibers:

• .24 Nosler
• .240 Belt. Riml. N.E.
• .240 Flang. N.E.
• .240 Weath. Mag.
• .243 Ackley Improved
• .243 Win.
• .243 WSSM
• .244 H&H Mag.
• .244 Rem.
• 6 mm ARC
• 6 mm ARC (bolt action rifles only)
• 6 mm B.R. Norma
• 6 mm B.R. Rem.
• 6 mm BRA
• 6 mm Creedmoor
• 6 mm Dasher
• 6 mm GT
• 6 mm PPC
• 6 mm Rem.
• 6 mm XC
• 6 x 45 mm
• 6 x 47
• 6 x 47 ATZL
• 6 x 47 Lapua
• 6 x 47 SM
• 6 x 50 R Scheiring
• 6 x 52 R BB2
• 6 x 52 R Bretschneider
• 6 x 62 Freres
• 6 x 62 R Freres
• 6 x 70 R
• 6mm-284

Safety notes

All load data is reference data only. Always start at the minimum charge and work up in small steps while watching for pressure signs. Never exceed the maximum charge published by the powder or bullet manufacturer.