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Got my 300 gr Hornady XTPs from Midway last night and as soon as I get the hogs butchered out will be working up a load with some H110. These look pretty impressive in the load data book, clocking 1350 fps out of a 6.5" pistol with 19 grs of H110. I don't have a crono yet so I'm just calculating vols from the load data I have. I know the velocity lost when shortening a rifle barrel is about 40 fps/inch but what is the velocity gained when running a pistol round in a rifle. I'm figuring around 20 fps/inch. That should have them screaming at about 1500 or maybe a little more. If I can get performance like that out of these buggers and get decent accuracy I may just start using these instead of the Leverevolutions that Hornady have running at very near the same velocities but with a 225 grain bullet. The only problem I can think I may run into would be OAL being too long. I have some Double Tap hard cast 300s that shoot fine in my 629 but are a tad too long for the 94.
 

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Hey Woody. I assume we're talkin .44mag here. The best you could expect with H110 is about 1500fps.
That's 1500 ft/lbs of energy at the muzzle. A 240gn pill at 1800fps has 1727ft/lbs. That is a lot of catching up for the 300 to do within the effective range of the caliber.

Cheers,
Mark.
 

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Not sure where you're getting your load data but Speer #13 shows a 300 grain XTP and H110 fired from a Ruger Redhawk 7.5 inch barrel as only 1040 fps with a 20.2 grain load. I doubt 19 grains would even hit 1000 fps from a revolver. Oz is correct about the 1500 fps top speed. Not exactly the same but my 45 Colt carbine shows a speed just a hair above 1500 fps through my chrony with 22 grains of 296, H110's sister powder, and a 300 grain XTP. Trying to guesstimate the difference in speed of the same load in a revolver and a rifle is not easy and most times one is surprised how wrong their guess is. Usually 300-400 fps difference is in the ball park but I've been surprised a few times with a low of 250 fps and a high of almost 500 fps. really depends on the powder, bullet shape, and bullet weight.

On the other hand a 314 grain cast with 22 grains of H110 hits 1535 fps. Doesn't sound like much but the 300 grain XTP is putting out 1499 fpe, where as the cast with just 14 more grains of weight and 35 fps faster is putting out 1643 fpe. That's 144 more fpe with the same powder charge but a different type of bullet.
 

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ADI guide lists 1310fps for 300gn pill and 20gns AR2205 from a 8 1/4 inch barrel. The same load for 1450fps from a 20 inch rifle.
AR2205 is the same as H4227.

Mark.
 

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In my 357 Mag 24" barrel, I averaged 1980fps with a 158gr XTP and 2050 with a 145gr Silvertip using H110. In my experience, if I'm looking for all out velocity, H110 will provide it.
 

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My experience is to use slower burning powders in a rifle barrel to make use of that extra length.
 

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lilwoody said:
Take a look at Double Tap, very close to the same preformance, 1/2 the cost.

Huh! Not even close;

340 gr. @ 1450/ 1649 ft. lbs for $36.00 vs, 320 gr. @ 1300/1200 ft. lbs. for $44.00



Go on out to rifle length and it just gets a wider spread. Now if only the Marlin 1894 had a 1 in 20 twist to stabilize that big hunk of lead, otherwise you could go with a Rossi or a Winchester copy.
 

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Now if only the Marlin 1894 had a 1 in 20 twist to stabilize that big hunk of lead
Don't know about a 340 grain pill but my 1894 has no problem stabilizing my 314 grain casts.
 

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Discussion Starter #15
lesismore said:
Huh! Not even close;

340 gr. @ 1450/ 1649 ft. lbs for $36.00 vs, 320 gr. @ 1300/1200 ft. lbs. for $44.00



Go on out to rifle length and it just gets a wider spread. Now if only the Marlin 1894 had a 1 in 20 twist to stabilize that big hunk of lead, otherwise you could go with a Rossi or a Winchester copy.
Look at the quanity. You get 20 bufflo bores for their 36 bucks and 50 Double taps for 44 bucks
Heavy .44 Magnum +P+ Ammo - 340 gr. L.F.N. - G.C. (1,478 fps/M.E. 1,649 ft. lbs.) - 20 Round
Caliber : .44 Magnum

Bullet : 320gr Wide Flat Nose Hardcast

Ballistics : 1325fps - 1248 ft./lbs. - 7.5" bbl.
1265fps from a 6" Colt Anaconda
1125fps from a 2.5" Ruger Alaskan

Box of 50rds.

1.80 each for Buffs, .90 each for DT
 

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OK, My mistake on the price. The flier I saw showed the price on DT at 20 rds for 44.00.

I went to Midway a saw the correct pricing.

But still yet, The BB 340 gr. load is a lot more powerful. I bet a fella could replicate the 340 gr. BB load using Lilgun powder and save a bunch more.

BOT, I would like to see the velocity out of a 20 inch barrel. BBTI only goes up to 240 gr. loads and they aren't using the hotter loads in the test. I know the Lilgun loads I shoot gain a lot of vels from the longer rifle barrel. There may be some other loads that are better but I have not found them yet.
 

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44-40 Willy said:
My experience is to use slower burning powders in a rifle barrel to make use of that extra length.
Yup, its all about the powder. Useing a fast powder like Unique you will see alot less gain than with 110, 240, 4227 etc. They are often the fastest in a revolver also though. The fast powders build pressure too fast to get max velocity in safe pressure.
 
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