I am a big S510 guy. It is THE best out of the box airgun in my opinion (for those looking for a "traditional" airgun experience).
In .177 and .22, they really, really shine. My .177 S510 Tactical came shooting HOT (16gr JSB Beasts @ ~870 out of the box). I think it would do really well w/ 13gr .177 slugs. These guns are SERIOUSLY awesome pellet shooters in .177, .22, and .25 but ESPECIALLY the .177 and .22 versions.
All 4 S5xx guns I've handled (2 .25's, 1 .22, and 1 .177) ALL came with out of the box tunes that had SUB 1.5% Extreme Spreads and .5% Standard Deviations. They really don't get as much love as they should.
I hopped up my .25 S510 to shoot RMAC/EBR/PAC longer range competitions with. It makes decent power (~53 FPE currently). Made the Speed Challenge finals at RMAC 2023 with this gun but CHOKED in the first round LOL. Gun did perfect, it was the shooter that was the problem!
Here's the link to that thread if anyone is interested: https://www.airgunnation.com/threads/my-50-fpe-air-arms-s510-25-tune.1250776/#post-1250850
The "weak link" in the FAC versions of these guns is the plenum size. From what I've measured, the stock plenums are only ~6 cc's in ALL calibers. I am working on an enlarged plenum, but it is tough to push these beyond their stock power levels with a plenum that small. Frankly, I am SHOCKED I am able to get the power out of my .25 that I can with the stock plenum. With a larger plenum, these would be totally different beasts.
Easily my favorite platform and it's not even close. S400's are pretty sweet too.
In .177 and .22, they really, really shine. My .177 S510 Tactical came shooting HOT (16gr JSB Beasts @ ~870 out of the box). I think it would do really well w/ 13gr .177 slugs. These guns are SERIOUSLY awesome pellet shooters in .177, .22, and .25 but ESPECIALLY the .177 and .22 versions.
All 4 S5xx guns I've handled (2 .25's, 1 .22, and 1 .177) ALL came with out of the box tunes that had SUB 1.5% Extreme Spreads and .5% Standard Deviations. They really don't get as much love as they should.
I hopped up my .25 S510 to shoot RMAC/EBR/PAC longer range competitions with. It makes decent power (~53 FPE currently). Made the Speed Challenge finals at RMAC 2023 with this gun but CHOKED in the first round LOL. Gun did perfect, it was the shooter that was the problem!
Here's the link to that thread if anyone is interested: https://www.airgunnation.com/threads/my-50-fpe-air-arms-s510-25-tune.1250776/#post-1250850
The "weak link" in the FAC versions of these guns is the plenum size. From what I've measured, the stock plenums are only ~6 cc's in ALL calibers. I am working on an enlarged plenum, but it is tough to push these beyond their stock power levels with a plenum that small. Frankly, I am SHOCKED I am able to get the power out of my .25 that I can with the stock plenum. With a larger plenum, these would be totally different beasts.
Easily my favorite platform and it's not even close. S400's are pretty sweet too.
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