Well, I for one am trying to get the short-range benchrest community to recognize the Lapua 220 Russian case for what it is right out of the box. And that is; a diamond in the rough that has been overlooked and underestimated ever since George Kelbly convinced Lapua to produce the 220 Russian many years ago when the Sako brass became unavailable.
The Lapua 220 Russian case, just as it comes from the box in either 22 or 6mm and with no-turn chambers is the equal of any PPC in short-range group shooting! Don't believe it? Let me show you. Get on Southwest airlines, land at the Midland International airport and I'll pick you up there. Twenty minutes later we can be at my tunnel range facility and you can even shoot my rifle in either 22 or 6mm. As an added bonus, you'll learn to tune a rifle with a state-of-the-art tuner.
The 220/6mm Beggs cartridges are nothing more or less than the Lapua 220 Russian case straight from the box with no modifications. The only change I made with the Beggs chambers was to decrease the radius at the junction of the neck and shoulder to .060. The standard 220 Russian cartridge as the Russian engineers designed it uses a .125 radius at this junction the same as the 220 Swift. As a result, both cartridges developed a reputation for excessive growth in length when reloaded.
About forty years ago, Palmisano and Pindell developed the PPC by blowing out the body taper of the Sako 220 Russian to the Ackley taper (.010 per inch) and increasing the shoulder angle from 21 to 30 degrees which resulted in a two grain increase in powder capacity. With the powders available at that time they needed the extra two grains to reach the desired muzzle velocity of 3200 fps with 68 grain 6mm bullets.
With the powders we have today the extra two grain capacity is not needed. The 220 Beggs, (aka Lapua 220 Russian) right out of the box, easily produces 3600 fps. The 6 Beggs easily reaches 3350 fps with 68 grain bullets.
Both cartridges are available with either tight-neck or no-turn chambers. If you feel you just have to have a tight neck chamber, the 220 Beggs uses a .250 neck diameter; the 6mm Beggs a .269. The no turn versions are .257 and .274 respectively.
During the past several weeks I've been busy in the tunnel experimenting with the no-turn versions of both the 220 and 6mm Beggs cartridges and can state with complete certainty that the no-turn versions are every bit as accurate as the tight necks which require neck turning.
Both the 220 and 6mm Beggs cartridges use the same Hornady bushing type sizing die by changing only the neck bushing. L.E. Wilson makes the straight-line bullet seaters which are caliber specific. At this time, in order to maintain standardization and help me recover my research and development expenses, the sizing and seater dies are available only from
genebeggs@cableone.net
Chamber reamers are available direct from both JGS and PT&G.
So why would Lapua want to continue making their 220 Russian case just as it is?
I'll let you be the judge.
What percentage of Lapua 220 Russian cases are not destined to be blown out to make PPC cases? ??
So, what would be the reason/advantage to build a rifle chambered in 220/6mm Beggs instead of 6PPC or 100 short 22PPC? Well, 'STANDARDIZATION' is the biggest reason. No mismatches between chamber and sizing die. No difficulty with extraction. Another reason is no neck turning and/or case forming chores. Just pick the cases out of the box, run the necks over the appropriate expansion mandrel, chamfer, load and shoot. It doesn't get any easier than that.
"Now listen Beggs," you say, "How can you put your name on these cartridges and claim credit for them when it was Palmisano, Pindell, Russian engineers, George Kelbly and Lapua that are responsible for giving benchrest the whole shebang!?
Well, I don't claim credit for anything except specifying and standardizing the dimensions for my reamers and dies. As I told Butch Lambert when he built that beautiful little sporter, "You would be perfectly justified to engrave the tenon, 'Lapua 220 Russian.'
As I said earlier, it's a diamond in the rough that has been grossly overlooked and unappreciated for many years. Without the Lapua 220 Russian case, short-range benchrest group shooting would never have evolved to where it is today. Teen aggs are now common place.
Good shootin' !
Let me know if I can help you.
Gene Beggs