GTA
All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Big Bore AirGun Gate => Topic started by: aceflier on January 10, 2017, 09:46:09 PM
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Lyman 145 Grain, item # 2660130, 457130, 2-cavity RN
https://www.midwayusa.com/product/947397/lyman-2-cavity-bullet-mold-457130-45-70-government-458-459-diameter-145-grain-collar-button-round-nose (https://www.midwayusa.com/product/947397/lyman-2-cavity-bullet-mold-457130-45-70-government-458-459-diameter-145-grain-collar-button-round-nose)
A guy on a pyramid air review for the Texan claims 2" groups at 100yds with them.
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Lyman 145 Grain, item # 2660130, 457130, 2-cavity RN
https://www.midwayusa.com/product/947397/lyman-2-cavity-bullet-mold-457130-45-70-government-458-459-diameter-145-grain-collar-button-round-nose (https://www.midwayusa.com/product/947397/lyman-2-cavity-bullet-mold-457130-45-70-government-458-459-diameter-145-grain-collar-button-round-nose)
A guy on a pyramid air review for the Texan claims 2" groups at 100yds with them.
I have that mold, they are pretty good at 50 yds but no good at 100 yds. for me they shoot about the same as the EPP, they are ok for plinking but I just stay with the 340 gr. now they shoot better than anything I have tried and they have a b.c. of .175 at the speed I shoot them so the trajectory is about as good as anything I have shot in it. I got my lead for $1.00 a pound so I only have $5.00 in 100 bullets, its cheaper to shoot than my .25 cal. (But uses a lot more air)
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Check Lee's website and go to the clearance/discountiued section.they had a over run on some 250 gr flat nose custom 457 molds for about $35.shoot great out of my extreme around 100 yards
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Just think. 2" at 100 yards! Only needs to tighten up one more inch, and it could be called a shooter!
A bullet shooter should be "MUCH" more accurate at 100 yards than a Pellet shooter! There is something amiss with the Texas for sure. :(
Me thinks they totally humped the pooch on the twist rate. And they were warned BEFORE production! Typical AF. Refuses to listen to anyone but Celeb's. >:(
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How is 2" at 100 bad? I dont see many .45 cal groups on here but I know Nick's and Randy's slugs do fine in the Texan. Show me a 1" group with any other .45 please. I am just looking for a lighter slug that does well at 100. Seems they don't exist lol. 340gr seems overkill for a coyote so I'll shoot up these EPP then start casting some 340's.
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The reason one doesn't exist is because the twist rate is to fast for light bullets.
I can't imagine shooting anything shorter then the EPP. They are 168 gr and almost square.
A lot of the problem with the Texan is people are shooting it way to slow for a lot of bullets to work.
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The reason one doesn't exist is because the twist rate is to fast for light bullets.
I can't imagine shooting anything shorter then the EPP. They are 168 gr and almost square.
A lot of the problem with the Texan is people are shooting it way to slow for a lot of bullets to work.
What is the twist rate then? I've read 1:20 and it doesn't sound fast when compared to 1:15 in my Evanix.
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Yes 1:20
What caliber is the 1:15 in? That's to fast even for 357.
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Yes 1:20
What caliber is the 1:15 in? That's to fast even for 357.
That's .45, Evanix factory barrel.
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Yes 1:20
What caliber is the 1:15 in? That's to fast even for 357.
That's .45, Evanix factory barrel.
LOL....1-15" in 45 is too fast......WOW! There goes roundball in that gun. At least in all my shooting experineces, roundball accuracy falls off once you get faster than 1-20" twist (1-18: 1-16: 1-14"). And crosman went with 14" twist in the BullDog .357. WTH are these guys thinking.
Back when I had my Jack Haley 457 with 20" twist, only Roundball which was super light worked well as far as LIGHT slugs go. And they work well in the TEXAN. Nothing in the 200 grs arena worked. There where no EPP's back then. But if i wanted LIGHT, i just shot Roundball at 1000 fps with dead accuracy. I had to use 310-450 gr in my Haley for bullet accuracy. Heck, it was simple to me, I SHOT WHAT WORKS.
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How is 2" at 100 bad? I dont see many .45 cal groups on here but I know Nick's and Randy's slugs do fine in the Texan. Show me a 1" group with any other .45 please. I am just looking for a lighter slug that does well at 100. Seems they don't exist lol. 340gr seems overkill for a coyote so I'll shoot up these EPP then start casting some 340's.
TIM,
Never think that way with airguns. A 340 gr slug IS NOT overkill for a yote. It does nothing more than punch a 45 cal hole through one. We simply don't have the hydro shock nor the speed to do any EXPLOSIVE TISSUE DAMAGE like a 338 lapua would do to a yote.....lol! Yotes with airguns need to be hit as hard as we can hit them. Now yes, if you are the HEAD SHOT only type, then yeah, i could see 340 gr being too much.....lol!
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Yeah what was I thinking a yote can never be to dead lol.
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My Texan shoots the 255 gr. Mr. Hollowpoints all most as good as the 340 gr. you might want to give them a try if you want something lighter.
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Thanks Randy Im more looking for something I can cast myself so I'll stick with the 340 and try an EPP mold I found.
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I don't blame you the price of bullets is pretty high if you are going to shoot much.
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I got to thinking I had not shot any of the collar buttons in a while so I went out and shot a group at 50 yds and a group at 100 yds to show you how they shoot, at 50 yds they shot 5 in about a 1" group and at 100 it shot 4 pretty good but had 1 bad flyer, so got out 5 of the 340 gr. and shot 5 at 100 yds and they measured about 2 3/4". I filled the gun every 2 shots with collar buttons at 150 gr. were about 1000 fps first shot and about 985 second shot. I also added a picture of collar button beside EPP.
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I think Tofazfou answered the question just fine.
"2" at 100 is not considered very accurate in any scoped rifle by just about any standard that I know of.
AF built these guns for the marketable "Shock" value. Bragging rights as it were.
A .45 grain slug as Tof. pointed out, simply punches thru, with little catastrophic tissue damage. We don't have the advantage of hydrostatic shock at the velocities we are getting from our AG's. It is up to Accuracy/shot placement, penetration, and tissue dammage to give a humane kill.
On the other hand, when hunting light skinned varmints, as a yotal dog certainly is, a fast, Quick expanding Bullet will in most cases put the animal down much faster. Which is exactly why the .257 and .30 cal. Big Bores are so effective.
This does not even get into the much flatter trajectory for shot placement issue.
The .45 is not, nor has it ever been considered a varmint round. Be it PB or AG.
It is simply Not what a .45 is designed to be.
AF wanted media attention, more than a highly accurate, effective AG. They have proven this method of marketing for years! Grrrr!!!
It's the Gamo methodology in marketing on steroids! :(
Knife
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Thanks Randy yeah not so good out to 100.
Knife I disagree with 2" at 100 not being good but that's just me. Any game coyote and up is dead with a heart and lung with a 2" group. I would not hesitate to take a shot with the 340gr and nicks 370 at 100yds on a yote. And with a 50yrd zero you are talking 3.5 mil holdover for 100yds. I know Nicks slug has shot touching groups at 100.
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Some people are happy with 2" groups or larger at 100 yards, i prefer moa rule as several other shooters have given some advice on the topic. As Doug has stated, you're probably going to have to get faster speeds to make certain bullets group tighter. I like all my groups to be this size at 100 yards, means I'm still shooting MOA and not bad for a super charged bb gun.
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Tony that group was out of a 257, I don't think you can expect a 45 cal. with a factory barrel to shoot groups like that every time.
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Its still doable. Like Doug mention, it needs faster speeds to get it to shoot certain bullets well. I think its very doable actually. If you have to speed it up and hit 950's with a 340 gr bullet, its doable. Going to require a 4500 psi tank to hold that 3600 psi needed along with a beefier spring.
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I agree it is doable but how much money do you want to spend? I don't see many 1" groups posted with 45 cal. I have had a lot of experience with powder burners and I know that to shoot tight little groups consistently you need to spend a lot of money and you wont be using 45 cal, but for a gun that you are going to hunt with is the extra accuracy going to be worth it. I just went out and shot my Texan 5 times at 100 yds no it is not a 1" group but anything that your going to use a 45 cal for it is plenty accurate enough. I hear about all these 1" groups but nobody is posting picture of them with 45 cal. my groups are not cherry picked I have shot 1" groups with air guns at 100 yds but they are not the normal. You guys with the 45 cal guns go out and shoot a 5 shot group with them at 100 yds not tethered, just like you hunt with it and post the picture.
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What speed were those shot at?
.45 is not a 5 shot gun on one fill. Only way to see if a bullet is going to shoot good is to fill after every shot or tether. That will show if it will group or not. Does no good to shoot a 5 shot group on a fill. You will never know if it's the bullet or the fill pressure causing a bad group.
I have seen a 5 shot 1" group shot with a 372 gr.
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I usually fill every 2 shots but I forgot and shot the last 3 on the same fill, I have the Texan for a hunting rifle and I think the accuracy is good for hunting big game, I have shot 1" 5 shot groups with it before but it is not the normal, and I think shooting tethered is not a good way to find the best setup for hunting because you need to find what works best for 2-3 shots on one fill. The speed would have been about 800 fps first shot and about 785 second shot.
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Yes but first you need to determine if a bullet is a good or bad. Hard to do that if there is to many variables.
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Looking at a boat tail design Bob made next anyone shot it?