October 29th, 2015

Sierra Releases NEW 183 grain 7mm (.284) MatchKing Bullet

Sierra Bullets MatchKing 7mm .284 High-BC projectile bullet F-Class New

High-BC 7mm bullets are favored by many of the top long-range and F-Class (Open) shooters. Now, thanks to Sierra Bullets, there is a new “heavy-weight contender” in the 7mm match bullet category. Sierra has just introduced an all-new 183 grain 7mm HPBT MatchKing, part # 1983. This impressive new projectile boasts a 0.707 G1 Ballistic Coefficient (at 2300+ fps), plus — get this — it comes “tipped” from the factory. The final meplat tipping operation ensures a higher, more uniform BC. Recommended barrel twist rate is 1:8″ or faster.

Sierra Bullets MatchKing 7mm .284 High-BC projectile bullet F-Class New

Sierra says its new 183gr 7mm MatchKing has a modern, low-drag shape: “A sleek 27-caliber elongated ogive and a final meplat reducing operation (pointing) provide an increased ballistic coefficient for optimal wind resistance and velocity retention. To ensure precise bullet to bore alignment, a unique bearing surface to ogive junction uses the same 1.5 degree angle commonly found in match rifle chamber throats.

The new 7mm 183gr HPBT bullets will be available in boxes of 500 bullets (#1983C) with MSRP of $256.34 per box and boxes of 100 bullet (#1983) with MSRP of $51.80 per box. NOTE: Sierra states that “MatchKing® and Tipped MatchKing® bullets are not recommended for most hunting applications.”

Permalink Bullets, Brass, Ammo, New Product 3 Comments »
October 29th, 2015

K&M Ported Expander Mandrel Window Riser

K&M Expander Riser

K&M Precision Shooting Products has a very handy tool few hand-loaders know about. This brilliantly simple device lets you actually SEE your case necks as you expand them. This tool can benefit anyone who necks-up brass or who uses an expander to smooth out necks (or reduce tension) before loading.

K&M Expand Mandrel Window Riser
This is a simple threaded extension placed between your expander die body (K&M Expand Iron) and the top of your press. It carries the expander mandrel higher, above the press, and has a cut-out view port so you can see the mandrel as it passes through the neck. Smart, eh? This provides visual feedback during the process of expanding your brass. The patent-pending view riser costs $20.00. Will it expand necks faster, or reduce run-out? We doubt it, but we still would like to have one, if only to eyeball the mandrel to control the neck-entry rate more consistently from case to case.

Installation: Thread the Expand Mandrel Window Riser into the top of your loading press, then thread the K&M Expand-Iron (Expander Die Body) fully into the top of the window riser and adjust each so you can stroke out the press completely without driving the case mouth into the press adapter. This allows you to view the expanding operation which is typically blind under the press. The riser also eliminates the need for the stop screw in the expander mandrel. LINK: Expand Window Riser Instructions (PDF).

Permalink Gear Review, Reloading 4 Comments »