The bulk-density did/does not accommodate the charge-weights, thus, velocity which we were shown. We were (I was) expecting a bulk-density equal to H-322, featuring the H-4198 burn-rate - my Lt-30, is slightly less dense than my H-4198 - performance (precision) is about equal.
IMO yes
I agree Greg with you 100%. Lets face it 90% of the guys we shoot against use H4198, and there is a good reason, it just flat out works better than any other powder in a 30BR. Ya I have a ton of N130 and a decent amount of LT30 left after I sold most of it, but H4198 just works better in OUR neck of the woods especially when it's colder and It's less temp sensitive than the other 2 powders.
Who makes these 108's? Contact info?
Wow I'm getting 3100FPS with some 108 Clines that I have using 34.3 grains of H4198 with a 23" Krieger 17TW with my newer Farley Black Widow. I'm getting the same speed with my other FBW same length BBL, same twist but using 34.5 grains with the same bullet. I just tried putting 37 grains in my case with a 20" drop tube and it came up 3/32" short of filling the entire case. As far as telling the difference between 108's and 115's I can't notice any difference in recoil and I've been shooting both for quite a while.
Ya but they don't work in the wind, remember?
You should be using either a .323 or .324 bushing. Those 2 bushing have always worked the best in the dozens of 30BR barrels that I own with the .330 necks that I run.
Contact info for the 112 & 115 Tommy Mc pills? I have a brand new 30 BR and have shot the 118 eazors and some Bib bullets but the lighter bullets would I suspect make it a little less hard on the shoulder...
Tubal 2000 is no longer in production.Are the powders mentioned suitable for heavier bullets (155 range) ?In the "usual" charge-weight range (33.8-34.8Gr.), as displayed on match report equipment-lists, H-4198, with bullets of up to 125 Gr., and barrels between 21 & 24" long, usually produces about 3020-3050fps. The much denser H-322 - at [Jones] mearure setting which throws H-4198/34.8Gr. - weighs in at 37.2Gr weight, but produces about 100fps less velocity: precision is usually equal. DITTO BenchMark. As pointed out by Dave Berg, these charges will result in almost level-full case fill: the charge will be compatced.
The (ADI manufactured) H-4227 worked quite well, the down-side for many people seemed to be that there was always room for more . . . & they could not resist tipping the can, so, first, the groups "blew-up", followed by pressure wrecking their brass! IMR4227 should work well also, as could N-120, which, early on, also I tried, but in the Ronnie Long smithed Morrison barrel, did not deliver consistency. In that barrel, though, via H-4227, MUCH HIGHER velocity was possible, the precision window was 2950fps, +/- a little: the charge-weight was 29.5gr . . . nicley serendipitous.
There are a number of other powders which, in early testing, "worked" well (produced precision grouping) - just not as well as the H-4198 & those listed above. A brief list, some of which, even in good times, are unavailable: RL-7; Tu2000 (great if you can find it); Lt-30; N-130.
Though developed specifically for the 30BR capacity & expansion ratio, the Lt30 which came in the original (initial production LOT) jugs, was not the stuff, based upon the prototyping DATA, which we expected.
Precision should always trump velocity. Keep 'em ON the X! RG
P.S. I have not chronographed a 30BR barrel for many years - the last time I did, was to compare LV (21") & HV (24") barrels, using the same components - for a pair of ten-shot strings, the Oehler displayed an average difference of 21FPS, or, 7FPS per inch. That was not a cut-off test - there could be that much difference between two barrels of equal length, from the same manufacturer.
Though there are exceptions, for short/light weight thirty caliber bullets, and small capacity cartridges, think, "RAMMA LAMMA JAMMA" . . . < https://bibullets.com/stuff-2/ >
RG
We are going to keep trying until we succeed, or die!Though there are exceptions, for short/light weight thirty caliber bullets, and small capacity cartridges, think, "RAMMA LAMMA JAMMA" . . . < https://bibullets.com/stuff-2/ >
RG
Your phone is fixing to ring.Better call - my e-mail is being INUNDATED with SPAM: tech support cannot tell me why! Literally HUNDREDS every time I check the mail.
