The Red one is My IBS Long Range Benchrest Light Gun. It is Chambered in .300 Ackley Magnum w/ a .334" NK. Broughton PA Taper 1 in 11" 5C finished at 31.25". McMillan Tooley MBR. Remington 700 LA, Blueprinted and line bored w/ an Oversized PT&G Bolt. Jewell Trigger 8 oz. NF 12-42x56 NXS w/ Custom Seekins 20MOA Base and rings. 15.6 Lbs Total.
The Blue one is My IBS LRBR Heavy Gun. Its Chambered w/ My 300 ATLAS Reamer w/ a Tapered NK to .334". Broughton 5C 1 in 11" 1.700" for 9" Tapered to 1.650" finished at 32". BAT Machine Model "L" 2" Round Right Bolt, Left Port and Right Eject. Spiral Fluted Bolt. BAT SS 20MOA Base w/ NF Ultra Rings. NF 12-42x56 BR. Jewell Trigger at 3 oz. McMillan 50 HBR w/ 13 lbs of lead and Sheane Chrome Plates. Total weight 65 lbs.
Both were built by Leonard Baity of Baity's Customs in N. Wilkesboro, NC. The Light Gun is at Baity's getting rebarreled. It will be a switch Barrel/Bolt .300 ATLAS/6mm Dasher with Kriegers. Also Leonard is building My Girlfriend and son another LG in 6mm Dahser on a 700 EtronX converted to conventional firing system. With Shehane MBR Tracker stocks. One 13.5" LOP and one 11" LOP. These should be back sometime in March 2010. Both of these were built for 1000 yd. BR. I am chambering the Dasher Barrels for 600 yd. BR and F-Class.
Awesome Rifles. hold on i'm drooling here. Did I understand correctly that the "heavy" weights 65lbs ? if so, thats a lead sled for sure, ain't no moving that baby around. did i metion those were awesome rifles?
Leadsled, NO! The Front and Rear rest have cordura bags that I spray w/ silicon. If you do not have your shoulder to it or your hand behind it, it will slide off of the table. Our server out here blocks Youtube so I can't get to the video to post a link. But if you will go to youtube and do a search for "Indy Shooting", you will find the video of my girlfriend shooting the Heavy at 400 yards. She shot a 10 shot 1.5" group at 400 during the video.
Yep! The only factory ammo I buy is Pistol and Shotgun! I couldn't afford to buy the guns and Factory ammo to feed them! Also they don't make factory for these Chamberings. Although .300 Weatherby is the parent case for the ATLAS, a loaded .300 WBY neck diameter is .335"! .001" to large for the Chamber. My loaded rounds are .332". The Chamber has a tapered neck, .335" at the neck/shoulder junction and .334" at the case mouth. Shooting a 210 gr. Berger VLD at 3050 fps using 79.5 gr. of REL25 and Norma Cases. I start w/ unfired Norma .300 WBY, Cheap Large rifle Primer, 14 gr. of Unique Pistol Powder, Fill w/ Cream of Wheat cereal and shake it down to the NK/Shoulder junction, then pack a 1/4 of a sheet of toilet paper to seal the case. Then spray w/ One shot case lube and fire. Out comes ATLAS. Then expand and neck turn. And you are ready.
I use the chamber to gauge the seating depth. I use a empty resized case w/ the bullet seated long and close the bolt on it. Checking for Rifling marks. Once I determine maximum cartride OAL I run this dummy round into the seater and lower the seating stem down until it contacts the bullet. Then I back the seating stem up .015". Resulting in a .015" Jam on the loaded round.
With your 270 Win., use heaviest Berger VLD that your twist rate will stabilize. Start w/ it Jammed .015" into the lands. You can adjust the seating depth once you find which powder/charge the barrel likes. Also if you start w/ a jam you can seat the VLD deeper and releave some of the chamber pressure.