Wc 297?

[BD]

Anybody tried it? I tried to order a couple of jugs from Pat's yesterday, but got no answer. It's described as just a bit slower than 296, which should be ideal in the .450 Bushmaster if it lights well. I'm wondering if it's a double based ball ?
BD

[C A Plater]

Probably a batch of H110/W296 that came out of the cooker out of spec. Being on the slow side may be of lesser interest to commercial loaders hence sold as surplus. I've not used this particular batch but helped a buddy make some from one called H116 which I believe is similar. We figured being slower it would work better in carbine length and longer barrels so we used it in his .357 and .44 Magnum lever loads. The published H110 starting data was used and worked up from there.

[felix]

H116 is a WW680 variant for sure by actually using. 297 is more like a WW296 variant? Yes, until otherwise, I would assume a heavy deterrent double base ball from what Jeff said. I would contemplate full case applications only. ... felix

I think it would be perfect in the 41 mag with the bigger boolits and using the LP primer which is too big. That case at that length should have been designed with the SP instead. The Dan Wesson case (415 mag?) is longer, making the LP more appropriate.

[BD]

I was kind of hoping it was another powder type, but in the 296 burn range. I've been having some issues getting 40 grains of H110 to light with the small rifle primers. it always goes bang, but I've been getting velocity variations in the 200 fps range and some big fireballs out the end of the muzzle. If I get a chance this week end i'm going to try some cut down .284 brass with large rifle primers to see if i can get more consistency.

BD

[felix]

Bill, that sounds like a plan. Please inform us. ... felix

[475/480]

I got some late last year.It looks like H110/296 and performs like H110/296. I use - .5gr less WC297 compared to H110,yes its that close.

Sean

[BD]

Thanks for the info 475/480. The price is right compared to the canister stuff. I just paid $30 with tax for a pound of LilGun. If I get the .450B dialed in, I'll go through some.

Felix, the 200 round condom "break in" is complete. Hopefully this weekend I'll get a chance to try some real boolits. The rifle shot several different condom loads into 1 1/4" at 100 with no particular load work up, or OAL adjustment. But, as I said the velocities were all over the place with H110. LilGun did better, but not by a lot.

BD

[felix]

Yeah, looks like a little faster ignition one way or another. Hopefully, the large primer you use won't push the projectile too far before the proper burn setting. Get the ES to below 50 if at all possible by changing primers and/or more jam into the lands. For a hunting gun, you know the distance to target can be so variable as to eliminate your seeking best grouping, so go for best ES. ... felix

[Lloyd Smale]

I use it alot. Mostly in the 454 475 and 500 linebaughs. I dont know if it would work well in the 450 tough. Loading density would be on the light side and its a powder that is tough to burn at anything but full pressure. IF you do use it stick to a mag primer.

[BD]

Lloyd, Load density is about 85% with 38 grains of 296 under a 300 grain RNFP boolit. The Hornady factory brass has a water capacity of 60 grains and uses a small rifle primer. brass made from cut down .284 cases has a water capacity of 57 grains and uses a large rifle primer. Pressures are in the 40,000 psi range.

What primers are the .454, 474 and 500 linebaughs using? And what powder charge weights?
The .450B case is basically a straight wall .45 that's 1.70 long. COAL is limited to 2.260, or less, to feed through an AR.

BD

[Lloyd Smale]

i use top end 110 load data and cci 350 primers.