I’m currently using 330grain slugs with my .510 carbine carbon fiber bottle and the drop is excessive past 60 yards. Anyone out there having luck with lighter slugs in there Texans?
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Airforce Texan slug weight?
- Thread starter PolarisRngr
- Start date
i have a texan carbine TX2 CF in .457.
It seems most slugs I try in the 180 to 330gr range all mostly go the same speed - 800-850fps. I settled on NSA 240gr.
Zeroed at 50 yards, I get about 11" of drop at 100 yards.
what FPS are you hitting with the 330gr, and what is your zero range?
It seems most slugs I try in the 180 to 330gr range all mostly go the same speed - 800-850fps. I settled on NSA 240gr.
Zeroed at 50 yards, I get about 11" of drop at 100 yards.
what FPS are you hitting with the 330gr, and what is your zero range?
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I do think I’m expecting too much with that heavy of a slug. A .30 would probably better suit my needs for coyote.
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I’ve been shooting the Mr. Hollow Point .510 255gr slugs with good results at 100 and minimal drop. My rifle is the LSSCF and after a little tuning it launches the 255gr. HP at 1,015fps which yields a three shot 1.5” 100yd group,4th shot will drop roughly 1 inch from the group.
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I'm my 34 inch barrel .510 CF it really doesn't make faster fps for lighter slugs. Example 310grain slugs max fps 900.......640 grain slug max fps 820 average 750.....450 to460 grain slug 800-820fps....Light slugs give you more shots ...but Texans seem to gain power through heavy weight slugs.... I'm at around 4.5mils drop at 125 yards from 50 yard zero with either my 450 grain or 640 grain slugs... Without a external regulator Texans not much fun target shooting..
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FYI; you should be getting closer to 960fps or better with a 310gr slug. My rifle was pushing 980fps with 310’s. Today it’s slinging the 310’s at 1045fps.
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i have the same rifle. Try the 350 grain botail hollow points from NSA. They are very accurate and crazy as it seems travel at almost the same speed as the 240gr. Im getting about 840fps with ‘em.
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I have a Texan .510 LSSCF, and the stock rifle with pressure at 3,600psi would sling the 255gr Mr. HP slugs at 1,005fps. Same rifle today, set at 4,400psi is slinging Mr. HP 305gr slugs at 1,049fps. The heavier 385gr Mr. HP slugs are going 954fps. lol... the 255's are at the ragged edge of breaking the sound barrier.
I typically run a 100 yard zero and the rifle consistently shoots 1.5" moa at 100yards. Does that help?
View attachment Pressure fps tuning chart_AirgunNation share.pdf
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You are getting the extra fps due to the longer barrel. I have the carbine which is much shorter.
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I have a Texan LSS .510 shooting 3000 psi. With 275 gr from Mr HP I zeroed at 50, had a 4 moa holdover at 100 and 10 moa holdover at 150.
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I use a .308 Texan air rifle, loaded with 106gr projectiles at 3100psi. My effective range for coyotes comfortably extends up to 180 yards. At my range, I can consistently strike an 8-inch steel target at 200 yards. These are just my thoughts and I could be mistaken, but your .510 is designed for shorter distances compared to the 257-357 calibers, which are known to be effective well beyond 180 yards.
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Agreed. the longer barrels get you greater velocity when compared to a shorter barrel. But there is no replacement for taking the time and to properly tune your rifle. It's been my experience that most people don't take the time, or simply don't know how to properly tune for a specific velocity, with the closest possible spread and most efficient air use. When I'm tuning, my goal is always for the tightest possible spread at at max power. Typically around 2-3fps spread for five consecutive shots.
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I hold a 3” group at 150 yards. Never shot a smaller caliber Texan but it seems plenty effective to me.
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A heavier hammer spring will make them rip. A heavier hammer and spring is needed if you decide to go heavier (which I definitely would if you're hunting larger game). The only problems there is (1) voided warranty (2) you'd want to get a stronger stainless carrier tube, because the factory tubes aren't designed for higher power.
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